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NGH GF38 Four Stroke Petrol Engine

NGH GF38 Four Stroke Petrol Engine

348.00

!!<>!!Now includes directable silencer worth 32.25. Specifications:!!<>!! Type: 4 Stroke air cooled petrol engine for aeroplane use only Displacement: (cc): 37.97cc Bore x Stroke (mm): ...
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Triple Ignition, 120 degree caps for glow size spark plug.

Triple Ignition, 120 degree caps for glow size spark plug.

124.56

Now you can convert your triple radial to petrol too. This ignition unit comes complete with a special sensor designed to work with four magnets so to ...
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On/Off Switch

On/Off Switch

14.81

Smoke Valve with servo controlled on/off switch.
find out more

GT33 with wrap around exhaust

GT33 with wrap around exhaust

325.60

GT-33 is in a class of its own.Like the GT22 it has the rear mounted Walbro carb with reed valve induction and almost bullet proof CDI ignition. It has ...
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One Way Valve

One Way Valve

5.09

One way valve which is suitable for glow; diesel or petrol.
find out more

FS-95V

FS-95V

260.00

The first in a completely new series of four stroke engines. With its deliberately 'retro' styling reminiscent of the very first OS four strokes. The original ...
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BCMPEV22

46.60

Pitts muffler for the Evolution 22cc petrol engine a=115mm b=65mm c=31mm d=25 ef=12mm Weight=140gm
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BCMIEV22

46.06

Inverted muffler for Evolution 22cc petrol engine a=115mm b=65mm c=31mm ef=12mm Weight=135gm
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BCMPEV15

39.94

Pitts muffler for the Evolution 15cc Petrol engine a=95mm b=56mm c=25mm d=25 ef=12mm Weight=110gm Also fits the OS, ASP, SC and similar 61 - 91 two strokes.
find out more

Four Stroke Exhaust Mounts

Four Stroke Exhaust Mounts

3.20

These versatile mounts are precision laser cut from steel and can be used flat as supplied or bent to suit you needs.
find out more

Glass Filled Nylon 4s 1.20 to 1.80 Adjustable Mount

Glass Filled Nylon 4s 1.20 to 1.80 Adjustable Mount

5.70

This sturdy glass filled nylon beam mount is suitable for 120 - 180 size or 25 - 30cc petrol engines. Dimensions - long bearers 113 ...
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Ignition battery pack

Ignition battery pack

8.60

Suitable for powering all our ignition units ENERG-PRO FLAT RECEIVER PACK (NiMH) Cells - 4 (4.8v) Capacity - 2100mAh Weight - ...
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Front Mounting Keleo Ring

Front Mounting Keleo Ring

235.00

This scale exhaust crafted from aluminium will transform your 400 radial engine and look the business on a Stearman or similar. A must for ...
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Velocity stack

Velocity stack

14.56

These are designed to reduce turbulent air in the area around the mouth of the carb ensuring a smoother run. Mounting holes 32mm centres inside diameter 18.5mm x ...
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Walbro WT repair kit

Walbro WT repair kit

15.60

Contains all the filters and diaphragms needed to overhaul any Walbro WTcarb.
find out more

A.S.P.

Just Engines Online | Two Stroke Engines |  A.S.P.

A.S.P 'Series 3'

A.S.P 'Series 3'

We’ve been the UK agent now for over 10 years for this famous manufacturer (the first to offer ‘Far Eastern’ engines in Europe, launched in around 1991).

These are the very latest design ‘Series 3’ engines most 2 strokes are traditional ABC, 4 strokes and the new .91/1.20/1.80 2 strokes are ringed and all are twin ball raced.

These engines include many enhancements over previous versions:

  • New crankcase design (O.S. exhaust port sizes ensuring many silencer options are available)
  • Double bushed CNC conrods
  • Improved metallurgy
  • New design (internal idle needle) twin needle carbs (Rear Safety Needle optional at no extra cost on many engines)
  • Baffled (quiet) silencers and new super quiet silencers (available for most engines) meaning improved starting, reliability, power and long life; all at great value prices.
The massive range; 2 strokes from .12 - 1.80 and 4 strokes from .30 – 1.80 + 1.60 twin + 64cc radial.

All ASP engines sold by us are provided with a limited* 2 year warranty against manufacturing defect. Comprehensive English instructions (including running in and carb. setting) and Just Engines’ support.

and as Europe's main agent, spares are fully stocked. In fact our commitment is......
place your order by 2.30pm and YOU’LL GET YOUR SPARES TOMORROW. Yes! Order by 2.30pm and have your parts next day (subject to the post office doing their job - and clearly an offer for the UK only!!. For International customers our commitment is to put in the airmail postbag, your spares order, the same day you order them). Even if we have to stop everything and strip an engine. Who else offers that support on engines at these prices? See spares section.

Control Line versions available; Tick the box before you add the engine to your basket.

* Conditions and exceptions apply.

Control Line Option

Control Line Option

We can provide control line versions of these engines using our popular J'EN venturi - supplied with OS NVA - for just an extra £11.

The J'EN venturi and NVA is supplied in place of the R/C carburettor, if you wish to purchase both options then please order the standard R/C engine and go to the JEN Venturi page to order the Venturi as an additional item.

ASP 0.12

ASP 0.12


Price: 35.29 (Including VAT at 20%)

Quantity:

Silencer Select




1.94cc ABC, twin ballrace and a neat little twin needle carb.

Compact & neat, same mounting size (and exhaust port) as O.S. .10.

Supplied with ASP15SIL standard silencer, OS871 baffled quiet silencer available for only £10 extra.

"very easy starting and instant throttle and a super duper idle. What a sweetie. Wonderful"
- customer comment.

Read more customer comments here

People who bought this item also bought:

1. J'EN '4' Two Stroke Plug
2. Glass Filled Nylon .10 to .15 Mount
3. Std Fuel Tube (3/32)

ASP S15

ASP S15


Price: 42.26 (Including VAT at 20%)

Quantity:

Silencer Select

New - We are pleased to announce the completely new S15 aero engine, this is a newly designed engine using all new parts.

The crankcase has increased cooling fins around the main barrel and the front housing to improve the cooling of all parts including the crankshaft. The carburettor is the newer style with true internal idle needle and has a larger bore venturi than the previous version. It is a very nice looking engine with anodised head and all the improvements and new parts mean much improved performance.

2.47cc ABC, twin ballrace and a neat little twin needle carb.

Supplied with ASP15SIL standard silencer, OS871 baffled quiet silencer available for only £11 extra.

This Engine now Discounted By 10%! Was 42.26 Now 38.04 (Including VAT at 20%)
Discount will be applied in Shopping Cart, limited stock avaliable.


People who bought this item also bought:

1. Glass Filled Nylon .10 to .15 Mount
2. J'EN '4' Two Stroke Plug
3. MAX 25FX Spares

ASP S15 C/L Club Combat

ASP S15 C/L Club Combat


Price: 51.17 (Including VAT at 20%)

Quantity:

Control Line Version (+£0.00 inc VAT)
Silencer Select
Domed nut (+ £1.75 inc VAT)

This engine is now the new improved S15A as above, fitted with the JEN venturi, legal for club combat and needle valve assembly.

Please select box to add Domed nut at £1.75.

"All in all, this little engine, not much bigger than an 0.9cc and a lot smaller and lighter than most 15’s, performed admirably and was very easy to use even for a beginner offering excellent value for money and if run in carefully, following the excellent instructions, a long trouble free life."
Mick Lewis (Model Flyer Magazine). Read full review here.


People who bought this item also bought:

1. A.S.P. 0.12/0.15 Spares
2. J'EN '4' Two Stroke Plug
3. A.S.P. 0.25/0.28 Spares

ASP 0.21

ASP 0.21


Price: 39.82 (Including VAT at 20%)

Quantity:

Silencer Select
Control Line Version (+£11.00 inc VAT) Please note, control line engines are sold WITHOUT
the radio control carburettor



3.46cc ABC, twin ballrace and a neat little twin needle carb.

Thanks to the new compact design the ASP 0.21 is now almost as small as a .15!

Supplied with JENS3/35 standard silencer, OS871 quiet silencer available for only £10 extra.

People who bought this item also bought:

1. J'EN '4' Two Stroke Plug
2. Glass Filled Nylon .19 to .30 Mount
3. Std Fuel Tube (3/32)

ASP 25 S

ASP 25 S


Price: 52.93 (Including VAT at 20%)

Quantity:

Control Line Version (+£11.00 inc VAT) Please note, control line engines are sold WITHOUT
the radio control carburettor



NEW!! We have now received the first batch of the eagerly awaited ASP25S, with the new squareish head design and larger volume, baffled silencer. This engine is much improved over the older 25 and in testing with the Club 2000 flyers it has been outperforming the 25FX and coming in as well as the extremely popular and much-lamented Irvine 25.

In testing, after about 1 gallon of Formula Irvine Sport 5 fuel, this fantastic, new 25 engine is turning a RAM 9x6 at 13,500 RPM and so will most definitely be competitive in the Club 2000 class. What's more, at this price you can buy about 3 for the price of one of certain other engines!


This Engine now Discounted By 10%! Was 52.93 Now 47.64 (Including VAT at 20%)
Discount will be applied in Shopping Cart, limited stock avaliable.


People who bought this item also bought:

1. J'EN '4' Two Stroke Plug
2. MAX 25FX Spares
3. Glass Filled Nylon .19 to .30 Mount

ASP 0.28

ASP 0.28


Price: 46.32 (Including VAT at 20%)

Quantity:

Silencer Select
Control Line Version (+£11.00 inc VAT) Please note, control line engines are sold WITHOUT
the radio control carburettor



4.57cc ABC, twin ballrace and a neat little twin needle carb, front or rear main needle {1}.

Supplied with JENS3/35 standard silencer.

{1} Main Needle can be fitted to the carb, or to a rear needle mounting bracket which is supplied as standard with the engine, giving the choice of front or rear mounted main needle valve.


This Engine now Discounted By 10%! Was 46.32 Now 41.69 (Including VAT at 20%)
Discount will be applied in Shopping Cart, limited stock avaliable.


People who bought this item also bought:

1. J'EN '4' Two Stroke Plug
2. Glass Filled Nylon .19 to .30 Mount
3. MAX 40LA Spares

ASP 0.28 R/C Combat

ASP 0.28 R/C Combat


Price: 62.86 (Including VAT at 20%)

Quantity:


(picture shows standard Carb & Silencer)





4.57cc ABC, twin ballrace.

Includes larger bore carb, front or rear main needle {1} and larger volume silencer for R/C combat.

{1} Main Needle can be fitted to the carb, or to a rear needle mounting bracket which is supplied as standard with the engine, giving the choice of front or rear mounted main needle valve.

ASP 0.32

ASP 0.32


Price: 47.40 (Including VAT at 20%)

Quantity:

Silencer Select
Control Line Version (+£11.00 inc VAT) Please note, control line engines are sold WITHOUT
the RC carburettor

5.22cc ABC, Twin ballrace and a neat twin needle carb, front or rear main needle {1}.

Supplied with JENS3/35LV standard silencer.

The ASP 0.32 is the latest compact design - just like a .25 case with the same mounting size (and exhaust port) as O.S. .25 and .32

{1} Main Needle can be fitted to the carb, or to a rear needle mounting bracket which is supplied as standard with the engine, giving the choice of front or rear mounted main needle valve.

People who bought this item also bought:

1. J'EN '4' Two Stroke Plug
2. ASP S15 C/L Club Combat
3. Pipe Mount

ASP 0.36

ASP 0.36


Price: 55.13 (Including VAT at 20%)

Quantity:

Silencer Select
Control Line Version (+£11.00 inc VAT) Please note, control line engines are sold WITHOUT
the radio control carburettor



5.90cc ABC, Twin ballrace and a neat twin needle carb, front or rear main needle {1}.

The ASP 0.36 is the latest compact design - just like a .25 case with the same mounting size (and exhaust port) as O.S. .25 and .32

Supplied with JENS3/35LV standard silencer.

{1} Main Needle can be fitted to the carb, or to a rear needle mounting bracket which is supplied as standard with the engine, giving the choice of front or rear mounted main needle valve.

"In my opinion the ASP is excellent value for money and should serve the buyer well, if care is taken when running in, with the extra £5 for the optional quiet silencer being a good investment, and helping to save our flying sites."
Malc Pinnock (RCM&E) - Read the full review here

People who bought this item also bought:

1. J'EN '4' Two Stroke Plug
2. 2 Blade Aluminium Spinner
3. OS No 8 Two Stroke Plug

ASP 0.40 S

ASP 0.40 S


Price: 55.14 (Including VAT at 20%)

Quantity:

Silencer Select
Control Line Version (+£11.00 inc VAT) Please note, control line engines are sold WITHOUT
the radio control carburettor

6.50cc ABC, Twin ballrace and a neat twin needle carb, front or rear main needle {1}.

Supplied with JENS3/37 quiet silencer, JENS3S/37 super quiet silencer available for only £5 extra.

Latest ASP .40 and .46 'S' series engines are very 'O.S. like' both in terms of their looks (and size) and now performance!!

Thanks to the re-designed (and timed) liner and carb., performance is now among the best of any of the 'sport' engines.

What does the 'S' stand for?........ Super, Special, Stonking! - or you can you think of one? ;-)

{1} Main Needle can be fitted to the carb, or to a rear needle mounting bracket which is supplied as standard with the engine, giving the choice of front or rear mounted main needle valve.

"In short, the power was outstanding, the starting was outrageously easy (2 quick flicks by hand), setting up was effortless, the idle was so reliable and trustworthy, the throttle transition from idle to full power was (after only 1/4 turn of bottom end) was flawless, the throttle response I could hardly believe." - Customer comment.
Read more customer comments here

This Engine now Discounted By 10%! Was 55.14 Now 49.63 (Including VAT at 20%)
Discount will be applied in Shopping Cart, limited stock avaliable.


People who bought this item also bought:

1. A.S.P. 0.40/0.46 Spares
2. OS No 8 Two Stroke Plug
3. Std Fuel Tube (3/32)

ASP 0.40 S Short engine

ASP 0.40 S Short engine


Price: 38.59 (Including VAT at 20%)

Quantity:

NEW - In response to customer demand we are offering this engine as a 'short' engine, without carburettor (inc needle assembly) and silencer, this offer will initially be for a limited period.

An ideal way to replace a worn out engine for little more than the price of a piston and liner assembly!




People who bought this item also bought:

1. MAX 15LA Spares

ASP 0.46 S

ASP 0.46 S


Price: 57.35 (Including VAT at 20%)

Silencer Select
Control Line Version (+£11.00 inc VAT) Please note, control line engines are sold WITHOUT
the radio control carburettor

Sorry currently out of stock

7.50cc ABC, Twin ballrace and a neat twin needle carb, front or rear main needle {1}.

Supplied with JENS3/37 quiet silencer, JENS3S/37 super quiet silencer available for only £5 extra.

Latest ASP .40 and .46 'S' series engines are very 'O.S. like' both in terms of their looks (and size) and now performance!!

Thanks to the re-designed (and timed) liner and carb., performance is now among the best of any of the 'sport' engines.

In our tests (using standard 17% oil, 5% nitro fuel), the baffled (quiet) silencer, O.S. no8 plug and APC props, the .46 following a brief 15 minute running in period recorded a really respectable 11,500 rpm on an 11x6 and an awesome 13,500 rpm on a 10x6!!

Beat that for 'power to pound' (power to dollar) ratio!!

What does the 'S' stand for?........ Super, Special, Stonking! - or you can you think of one? ;-)

{1} Main Needle can be fitted to the carb, or to a rear needle mounting bracket which is supplied as standard with the engine, giving the choice of front or rear mounted main needle valve.

"It runs perfectly and has never missed a beat. Pick up from slow idle is steady (typical 2-stroke) and always reliable (not typical 2-stroke!). Power is excellent" - Customer Comment.
Read more customer comments here

People who bought this item also bought:

1. Std Fuel Tube (3/32)
2. J'EN '4' Two Stroke Plug
3. OS No 8 Two Stroke Plug

ASP 0.46 S Short engine

ASP 0.46 S Short engine


Price: 47.29 (Including VAT at 20%)

Sorry currently out of stock

NEW - In response to customer demand we are offering this engine as a 'short' engine, without carburettor (inc needle assembly) and silencer, this offer will initially be for a limited period.

An ideal way to replace a worn out engine for little more than the price of a piston and liner assembly!




People who bought this item also bought:

1. A.S.P. 0.52 Spares
2. JEN .47

ASP 0.52 S Long Stroke

ASP 0.52 S Long Stroke


Price: 66.16 (Including VAT at 20%)

Quantity:

Control Line Version (+£11.00 inc VAT) Please note, control line engines are sold WITHOUT
the radio control carburettor



8.49cc ABC, Twin ballrace and a neat twin needle carb, front or rear main needle {1}.

Supplied with JENS3S/37 super quiet silencer.

Latest ASP 'Series 3' - the .52 's' long(er) stroke engine.

Thanks to the totally new bore and stroke, re-designed (and timed) liner and carb., performance is now among the best of any of the 'sport' engines.

{1} Main Needle can be fitted to the carb, or to a rear needle mounting bracket which is supplied as standard with the engine, giving the choice of front or rear mounted main needle valve.

"The Re-designed and re-timed ASP 52 offers excellent value for money, and just in case of that whoopsy spares are readily available. In my opinion this engine offers stunning performance at a very affordable price."
Malc Pinnock RCM&E
Read the full review here


People who bought this item also bought:

1. OS No 8 Two Stroke Plug
2. 2 Blade Aluminium Spinner
3. J'EN '4' Two Stroke Plug

ASP 0.52 S Short engine

ASP 0.52 S Short engine


Price: 47.29 (Including VAT at 20%)

Quantity:

NEW - In response to customer demand we are offering this engine as a 'short' engine, without carburettor (inc needle assembly) and silencer, this offer will initially be for a limited period.


An ideal way to replace a worn out engine for little more than the price of a piston and liner assembly!




People who bought this item also bought:

1. J'EN '4' Two Stroke Plug
2. JEN .57
3. Remote Glow Lead

ASP 0.61 S

ASP 0.61 S


Price: 68.38 (Including VAT at 20%)

Quantity:

Silencer Select
Control Line Version (+£11.00 inc VAT) Please note, control line engines are sold WITHOUT
the radio control carburettor


9.95cc ABC, Twin ballrace and a neat twin needle carb, front or rear main needle {1}.

Same size and exhaust port as O.S. .61

Supplied with JENS3/42 quiet silencer.

{1} Main Needle can be fitted to the carb, or to a rear needle mounting bracket which is supplied as standard with the engine, giving the choice of front or rear mounted main needle valve.

"My .61 starts, runs, throttle and never cuts. One of the best engines I've had." - Customer Comment
Read more customer comments here

This Engine now Discounted By 10%! Was 68.38 Now 61.54 (Including VAT at 20%)
Discount will be applied in Shopping Cart, limited stock avaliable.


People who bought this item also bought:

1. J'EN '4' Two Stroke Plug
2. ASP Multi Stroke Plug
3. Std Fuel Tube (3/32)

ASP 0.75

ASP 0.75


Price: 72.05 (Including VAT at 20%)

Quantity:

Silencer Select
Control Line Version (+£11.00 inc VAT) Please note, control line engines are sold WITHOUT
the radio control carburettor


11.95cc ABC, Twin ballrace and a neat twin needle carb, front or rear main needle {1}.

Same size and exhaust port as O.S. .61

Supplied with JENS3/42 quiet silencer.

{1} Main Needle can be fitted to the carb, or to a rear needle mounting bracket which is supplied as standard with the engine, giving the choice of front or rear mounted main needle valve.

"I am now an avid ASP fan after that .75 you sent me......... it's superb!!! " - Customer comment
Read more customer comments here

People who bought this item also bought:

1. ASP Multi Stroke Plug
2. 11" Diameter APC Propellers 3-10" Pitch
3. J'EN Pitts Muffler .61 to .91

ASP 0.91 S

ASP 0.91 S


Price: 88.24 (Including VAT at 20%)

Quantity:

Control Line Version (+£11.00 inc VAT) Please note, control line engines are sold WITHOUT
the radio control carburettor


14.93cc Twin ballrace and a neat twin needle carb, front or rear main needle {1}.

New .91's' now based on same case as .61 (like the O.S. 91fx!!)

Suplied with JENS3S/42 super quiet silencer as standard.

{1} Main Needle can be fitted to the carb, or to a rear needle mounting bracket which is supplied as standard with the engine, giving the choice of front or rear mounted main needle valve.

"the new ASP 91 's' is a compact, powerful, beautifully made good throttling engine that idles very consistently and starts immediately." - Steve Dorling
Read the full review here


This Engine now Discounted By 10%! Was 88.24 Now 79.41 (Including VAT at 20%)
Discount will be applied in Shopping Cart, limited stock avaliable.


People who bought this item also bought:

1. J'EN '4' Two Stroke Plug
2. ASP 0.61 FS
3. OS No 8 Two Stroke Plug

ASP 1.08

ASP 1.08


Price: 87.32 (Including VAT at 20%)

Quantity:









17.22cc ABC, Twin ballrace and a neat twin needle carb, front main needle.

Quiet silencer supplied as standard.

People who bought this item also bought:

1. OS Needle Extension
2. A.S.P. 1.08 Spares
3. Extension 42mm 12mm

ASP 1.20

ASP 1.20


Price: 120.11 (Including VAT at 20%)

Quantity:







19.96cc Twin ballrace and a neat twin needle carb, front main needle.

1.20 power in a .91/1.08 casing!

Supplied with standard Silencer.

People who bought this item also bought:

1. J'EN '4' Two Stroke Plug
2. BCMIASP108 New
3. Model Technics Supercat Four Stroke Plug

ASP 1.80

ASP 1.80


Price: 165.43 (Including VAT at 20%)

Quantity:


29.80cc, Twin ballrace and a neat twin needle carb, front main needle.

Supplied with standard Silencer.


People who bought this item also bought:

1. J'EN '4' Two Stroke Plug

Heli Engines

Heli Engines

ASP 'Series 3' Heli Engines

ASP 0.36 Ringed Heli

ASP 0.36 Ringed Heli


Price: 60.65 (Including VAT at 20%)

Quantity:

Silencer Select



5.9cc Excludes silencer, standard silencer only £5 extra (ideal for bench running in).

ASP 0.36 Ringed heli engine is an ideal (easy start and set) beginners or general sport heli engine. It is the same size and exhaust port as O.S. .32 - so fits all modern helis and heli silencer systems.

special offer..... ASP 36 Heli + Just Engines' baffled mini pipe £86.19, just select the baffled mini pipe silencer option above.

"Well done the ASP/Just Engines' team - a great product at a great price. Highly recommended."
Paul Pagdin
Read the rest of the review here

Please note the silencer options are 'aero style' silencers and unsuitable for use in helicopters with the crankshaft vertical. The heli mini pipe is suitable for those installations.


People who bought this item also bought:

1. Secondary Silencer
2. Std Fuel Tube (3/32)
3. Exhaust Deflector Medium

ASP 0.46 ABC Heli

ASP 0.46 ABC Heli


Price: 71.68 (Including VAT at 20%)

Quantity:

Silencer Select

7.5cc Excludes silencer, quiet silencer available for only £5 extra (ideal for bench running in).

Heli mini pipe for £35 extra, just select the baffled mini pipe silencer option above.


Please note the silencer options are 'aero style' silencers and unsuitable for use in helicopters with the crankshaft vertical. The heli mini pipe is suitable for those installations.

ASP 52 Ringed Heli Engine

ASP 52 Ringed Heli Engine


Price: 77.21 (Including VAT at 20%)

Quantity:

Silencer Select

Brand new ASP 52 ringed heli engine for all those 50 size models, this new engine has a ringed piston which is preferable for heli use, it has a twin needle carburettor with an extended throttle arm for ease of linkage set up, as can be seen in the photo. The engine is supplied without silencer as is normal for heli engines but we do have 3 silencers options in the drop down list above, including our JEN heli mini pipe which is superb.


Please note the silencer options are 'aero style' silencers and unsuitable for use in helicopters with the crankshaft vertical. The heli mini pipe is suitable for those installations.




People who bought this item also bought:

1. J'EN '4' Two Stroke Plug

Geoff from New Zealand trying out his new ASP 52 heli engine
Geoff from New Zealand trying out his new ASP 52 heli engine
Dimensions

Dimensions

Engine A B C C2 D E F G H J S Weight (g)
12(1,95cc) 33 11 57.5   40 60 40 25 35 49 M5 186
S15(2,5cc) 33 11 60   40 62 44 24 37 50 M5 208
21(3,34cc) 37 14.5 69   44 68 52 29 45 55 M6 232
25(4,04cc) 38 15 70   45 78 55 30 47 62 1/4UNF 322
28(4,57cc) 38 15 70   45 78 55 30 47 62 1/4UNF 318
32(5,22cc) 37 15 75   44 72 52 31 45 56 1/4UNF 356
36(5,90cc) 37 15 75   44 72 52 31 45 56 1/4UNF 354
40(6,5cc) 44 17.5 85   52 87 60 35 52 69 1/4UNF 488
46(7,5cc) 44 17.5 85   52 87 60 35 52 69 1/4UNF 470
52(8,5cc) 44 17.5 85   52 87 60 35 52 69 1/4UNF 520*
61(10cc) 52 25 97   60 100 66 42 54 80 5/16UNF 708
75 (12cc) 52 25 97   60 100 66 42 54 80 5/16UNF 654
91's' (15cc) 52 25 97   60 100 66 42 54 80 5/16UNF 720*
1.08 (17,2) 1 57 25 105   70 114 73 47 60 90 3/8UNF 862
1.20(20cc) 57 25 105   70 116 73 47 60 92 3/8UNF 898
1.80(29,9cc) 67 37 135   80 135 95 58 78 115 3/8UNF 1528

*weight includes SQ (super quiet) silencer
1and older .91 series3



Specifications

Type Displacement (cc) Bore (mm) Stroke (mm) Output (kw/rpm) Practical rpm Notes
12A 1.94 13.80 13.00 0.45/16,500 3,000-17,000  
15A 2.45 15.50 13.00 0.50/19,500 3,000-17,000  
21A 3.34 16.30 16.00 0.55/19,500 3,000-20,000  
25A 4.04 17.40 17.00 0.65/18,500 2,000-18,000  
28A 4.57 18.50 17.00 0.74/18,500 2,000-18,500  
32A 5.22 19.00 18.40 0.86/17,500 2,000-18,000  
36A 5.90 20.20 18.40 0.94/17,500 2,000-18,000  
40A 6.46 20.66 19.28 1.14/16,500 2,000-17,500  
46A 7.49 22.25 19.28 1.30/17,000 2,000-17,500  
S52A 8.49 22.4 21.5   2,000-18,000  
61A 9.95 24.00 22.00 1.68/17,500 2,000-18,000  
75A 12.40 26.30 22.00 1.80/17,000 2,000-17,500  
91A 14.93 27.30 25.500 2.20/17,000 2,000-17,500  
108A 17.22 28.50 27.00 2.40/17,000 2,000-10,000  
120AR 19.96 30.68 27.00 2.60/9,500 2,000-9,600 Ringed
180AR 29.82 35.00 31.00 2.90/8,500 1,800-7,800 Ringed


Note - to convert Kw (factory quoted figure) to Hp x 1.3 (although x 1.2 for a fairer result, in my opinion)


Questions

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