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Opto Petrol Engine Kill Switch

Opto Petrol Engine Kill Switch

£14.99

This is a must have for petrol engine users, the engine can be switched off via this unit which remotely kills the electronic ignition from a spare servo channel. The ...
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Moki 1.80 petrol

Moki 1.80 petrol

£250.00

We have just received a very limited number of the original Moki 1.80 petrol engines made by the genuine Hungarian factory. Fans of the Moki engines will already know that ...
find out more

Fibreglass Spinner

Fibreglass Spinner

PRICED TO CLEAR Fantastic, light, fibreglass spinners with bolt and dural backplate, in a neutral colour for painting to match your model. Weights are listed in brackets ...
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ASP 52 Ringed Heli Engine

ASP 52 Ringed Heli Engine

£69.99

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 ...
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ASP S15

ASP S15

£38.32

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 ...
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ASP 0.40 S Short engine

ASP 0.40 S Short engine

£34.99

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 ...
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Sensor Test Kit

Sensor Test Kit

£11.23

This ingenious little gadget really makes life easier when installing magnets and checking timing. It allows you to check and set your static timing ...
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Four Stroke Manifolds

Just Engines Online | Four Stroke Exhaust Systems |  Four Stroke Manifolds

Four Stroke Manifolds

Four Stroke Manifolds

Large 4 stroke manifold selection!



J'EN Knuckle Manifolds

J'EN Knuckle Manifolds

90, 110, 130 and 150 degree J'EN Knuckle Manifolds for OS / OS compatible (ASP, Magnum, SC, Thunder Tiger, RCV) and Saito style 4 stroke engines.

J'EN Knuckle Manifold Example
J'EN Knuckle Manifold Example

An example of how a J'EN Knuckle manifold really makes for a neat installation and easy cowl fitting from one of our Norwegian customers (click on the image for a bigger version).

J'EN Manifold Adapter and Knuckle Manifold Sizes
J'EN Manifold Adapter and Knuckle Manifold Sizes

This picture nicely demonstrates the sizes of the J'EN Manifold Adapter and J'EN Knuckle Manifold.

40 - 61 Knuckle Manifold  


Quantity:  

Angle Select

These manifolds fit all OS and OS copy four strokes from 40 - 61 size, also fits RCV 60SP and are supplied complete with lock nuts
People who bought this item also bought:
1. FS Manifold Adapter 40 - 61
2. FS Manifold Lock Nuts
3. 40FSSIL

65 - 91 Knuckle Manifold  


Quantity:  

Angle Select

These manifolds fit all OS and OS copy four strokes from 65 - 91 size, also fits all RCV engines except 60SP and are supplied complete with lock nuts
People who bought this item also bought:
1. FS Manifold Adapter 65 - 91
2. FS Manifold Lock Nuts
3. Flex Extension 65 - 91 120mm

120 - 180 Knuckle Manifold  


Quantity:  

Angle Select

These manifolds fit all OS (except the Surpass E*) and fit all OS copy four strokes from 120 - 180 size, as well as the new RCV 1.30. They are supplied complete with lock nuts.

* The Surpass E is the only OS four stroke to have a different thread in the silencer from the thread in the cylinder head. Our manifolds have the same thread each end and therefore do not fit the silencer supplied with the E. An easy fix is to purchase an inexpensive ASP 1.20 silencer body - Four Stroke Silencers

People who bought this item also bought:
1. FS Manifold Adapter 1.20 - 1.80
2. Flex Extension 1.20 - 1.80 120mm
3. FS Manifold Lock Nuts
OS200 Surpass Knuckle Manifold

OS200 Surpass Knuckle Manifold

Quantity:

Angle Select


We are pleased to announce that we can now offer a 90 degrees knuckle manifold for the new OS 200, we have had these specially made in response to customer demand. They are supplied without lock nuts and we only have the one angle available.


People who bought this item also bought:

1. APC 17x10N
2. Tapered Prop Reamer
3. 2 Blade Aluminium Spinner

S40 - S56 Knuckle Manifold  


Quantity:  

Angle Select

These manifolds are to fit Saito 40 - 56 Engines and are supplied excluding lock nuts.
Sorry only avaliable in 90 Degree.

This manifold also fits the new Saito 62 engine.

People who bought this item also bought:
1. Glass Filled Nylon 4s .30 to .45 Mount
2. APC 11x6
3. APC 10x7

S65 - S100 Knuckle Manifold  


Quantity:  

Angle Select


These manifolds are to fit Saito 65 - 1.00, also suitable for the new Saito 115.
Engines and are supplied excluding lock nuts. Sorry only avaliable in 90 Degree.

People who bought this item also bought:
1. APC 13x7
2. 2 Blade Aluminium Spinner
3. OS F Four Stroke Plug

S120 - S180 Knuckle Manifold  


Quantity:  

Angle Select

These manifolds are to fit Saito 120 - 180 Engines (Excluding the 125) and are supplied excluding lock nuts.
Sorry only avaliable in 90 Degree.
People who bought this item also bought:
1. FS Manifold Lock Nuts
2. Engine Test Stand
3. 1/8 Fuel Tube

S125 Knuckle Manifold  


Quantity:  

Angle Select

These manifolds are to fit the Saito 125 and also the YS 1.20, 1.40, 1.60 and 1.70. Supplied excluding lock nuts.
Sorry only avaliable in 90 Degree.
People who bought this item also bought:
1. A.S.P. 180 FS Spares
2. OS F Four Stroke Plug
3. APC 18x6W
FS Manifold Lock Nuts

FS Manifold Lock Nuts


Price: £2.00 (Including VAT at 17.5%)

Quantity:

A pair of OS and OS copy four stroke manifold locking nuts (Sorry NOT available for OS 110, OS 200 or Saito).

Please state engine model and size:

People who bought this item also bought:

1. 65 - 91 Knuckle Manifold
2. 120 - 180 Knuckle Manifold
3. 40 - 61 Knuckle Manifold

Standard FS Manifolds

Standard FS Manifolds

Standard exhaust manifold - as supplied with the engine.

FS Manifold 40 - 61  


Price: £11.99 (Including VAT at 17.5%)
Quantity:  

Standard exhaust manifold - as supplied with the engine. For .40-.61 OS and OS copies - like ASP, also fits RCV 60SP. Supplied with lock nuts.
People who bought this item also bought:
1. FS 52 SURPASS Spares
2. 40FSSIL
3. Std Fuel Tube (3/32)

FS Manifold 65 - 91  


Price: £12.98 (Including VAT at 17.5%)
Quantity:  

Standard exhaust manifold - as supplied with the engine. For .65-.91 OS and OS copies - like ASP, also fits all RCV engines except 60SP. Supplied with lock nuts.
People who bought this item also bought:
1. 65FSSIL
2. 65 - 91 Knuckle Manifold
3. 65FSSILB

FS Manifold 1.20  


Price: £14.98 (Including VAT at 17.5%)
Quantity:  

Standard exhaust manifold - as supplied with the engine. For 1.20 OS and OS copies - like ASP and new RCV 1.30. Supplied with lock nuts.
People who bought this item also bought:
1. A.S.P. 120 FS Spares
2. 120FSSIL
3. 120 - 180 Knuckle Manifold

FS Manifold 1.80  


Price: £14.98 (Including VAT at 17.5%)
Quantity:  

Standard exhaust manifold - as supplied with the engine. For 1.80 ASP and other Chinese 1.80 Four Strokes. Supplied with lock nuts.
People who bought this item also bought:
1. 180FSSILB
FS Manifold Adapters

FS Manifold Adapters

Female / female manifold adapter for use with flexi or for joining two knuckles.

See Dual Thread option at the end of the list for additional flexibility.

FS Manifold Adapter 40 - 61  


Price: £10.06 (Including VAT at 17.5%)
Quantity:  

Female/female manifold adapter for use with flexi or for joining two knuckles. For .40-.61 OS and OS copies, also fits RCV 60SP.
People who bought this item also bought:
1. 40 - 61 Knuckle Manifold
2. FS Manifold Lock Nuts
3. Flex Extension 40 - 61 120mm

FS Manifold Adapter 65 - 91  


Price: £10.06 (Including VAT at 17.5%)
Quantity:  

Female/female manifold adapter for use with flexi or for joining two knuckles. For .65-.91 OS and OS copies, also fits all RCV engines except 60SP.
People who bought this item also bought:
1. 65 - 91 Knuckle Manifold
2. Flex Extension 65 - 91 120mm
3. 2 Blade Aluminium Spinner

FS Manifold Adapter 1.20 - 1.80  


Price: £10.06 (Including VAT at 17.5%)
Quantity:  

Female/female manifold adapter for use with flexi or for joining two knuckles. For 1.20 OS and OS copies and ASP 1.80 and new RCV 1.30.
People who bought this item also bought:
1. 120 - 180 Knuckle Manifold
2. Flex Extension 1.20 - 1.80 120mm
3. FS Manifold Lock Nuts

FS Manifold Adapter S40 - S56  


Price: £10.06 (Including VAT at 17.5%)
Quantity:  

Female/female manifold adapter for joining two knuckles. For Saito 40 - 56 Engines.
People who bought this item also bought:
1. On Board Glow without battery
2. S40 - S56 Knuckle Manifold

FS Manifold Adapter S65 - S91  


Price: £10.06 (Including VAT at 17.5%)
Quantity:  

Female/female manifold adapter for joining two knuckles. For .Saito 65 - 91 Engines.
People who bought this item also bought:
1. Onboard Mini tachometer
2. Opto Petrol Engine Kill Switch
3. 2 Blade Aluminium Spinner

FS Manifold Adapter S1.20 - S1.80  


Price: £10.06 (Including VAT at 17.5%)
Quantity:  

Female/female manifold adapter for joining two knuckles. For Saito 120 - 180 Engines (Excluding the 125).
People who bought this item also bought:
1. MA 16x8 3 Blade Composite
2. 3 Blade Aluminium Spinner

FS Manifold Adapter Dual Thread  


Price: £14.50 (Including VAT at 17.5%)
Quantity:  

To enable the use of the OS threaded products such as the flexible extensions, with a Saito or YS threaded engine manifold, we can make a female - female adapter with dual internal threads.

For example, to attach to a Saito 1.20 manifold one end and to attach an OS 1.20 sized flexible extension into the other end please state "Saito 1.20 Manifold to OS 1.20 Flex"

Please state both connections required:

People who bought this item also bought:
1. S125 Knuckle Manifold
2. FS Manifold 65 - 91

OS Headers

OS header - male/female for use with flexi for OS and OS copies.

OS Inside Header 65 - 91

OS Inside Header 65 - 91


Price: £20.42 (Including VAT at 17.5%)

Quantity:

Part No: X-OS72109500. 'Inside' header - male/female for use with flexi for OS and OS copies .65-.91

People who bought this item also bought:

1. Flex Extension 65 - 91 120mm
2. 3 x Std Fuel Filter
3. OS F Four Stroke Plug

OS Outside Header 65 - 91

OS Outside Header 65 - 91


Price: £20.42 (Including VAT at 17.5%)

Quantity:

Part No: X-OS72109600. 'Outside' header (wider bend) - male/female for use with flexi for OS and OS copies .65-.91

People who bought this item also bought:

1. FS Manifold Lock Nuts
2. 65 - 91 Knuckle Manifold
3. FS Manifold Adapter 65 - 91

OS Inside Header 1.20 - 1.80

OS Inside Header 1.20 - 1.80


Price: £20.42 (Including VAT at 17.5%)

Quantity:

Part No: X-OS72109200. 'Inside' header - male/female for use with flexi for OS and OS copies 1.20 and ASP 1.80 and new RCV 1.30.

People who bought this item also bought:

1. Engine Test Stand
2. APC 15x7
3. OS Needle Extension

OS Outside Header 1.20 - 1.80

OS Outside Header 1.20 - 1.80


Price: £20.42 (Including VAT at 17.5%)

Quantity:

Part No: X-OS72109300. 'Outside' header (wider bend) - male/female for use with flexi for OS and OS copies 1.20 and ASP 1.80 and new RCV 1.30.

People who bought this item also bought:

1. 120 - 180 Knuckle Manifold
2. Flex Extension 1.20 - 1.80 120mm
3. FS Manifold Adapter 1.20 - 1.80

Flexible Extensions

Flexible Extensions

Male/Male flexible exhaust extensions for OS and OS copies.

Flex Extension 40 - 61 120mm  


Price: £25.53 (Including VAT at 17.5%)
Quantity:  

OS Flexible extension - male/male threads to suit .40/.52/.61 OS and OS copies, also fits RCV 60SP. 120mm Long
People who bought this item also bought:
1. FS Manifold Adapter 40 - 61
2. 40 - 61 Knuckle Manifold
3. FS Manifold Lock Nuts

Flex Extension 40 - 61 240mm  


Price: £33.71 (Including VAT at 17.5%)
Quantity:  

OS Flexible extension - male/male threads to suit .40/.52/.61 OS and OS copies, also fits RCV 60SP. 240mm Long
People who bought this item also bought:
1. A.S.P. 52/61 FS Spares
2. FS Manifold Lock Nuts
3. 40 - 61 Knuckle Manifold

Flex Extension 65 - 91 120mm  


Price: £24.51 (Including VAT at 17.5%)
Quantity:  

OS Flexible extension - male/male threads to suit .65/.70/.80/.91 OS and OS copies, also fits all RCV engines except 60SP. 120mm Long
People who bought this item also bought:
1. 65 - 91 Knuckle Manifold
2. FS Manifold Adapter 65 - 91
3. OS Inside Header 65 - 91

Flex Extension 65 - 91 170mm  


Price: £28.60 (Including VAT at 17.5%)
Quantity:  

OS Flexible extension - male/male threads to suit .65/.70/.80/.91 OS and OS copies, also fits all RCV engines except 60SP. 170mm Long
People who bought this item also bought:
1. FS Manifold Adapter 65 - 91
2. APC 10x10
3. APC 9x10

Flex Extension 65 - 91 240mm  


Price: £30.64 (Including VAT at 17.5%)
Quantity:  

OS Flexible extension - male/male threads to suit .65/.70/.80/.91 OS and OS copies, also fits all RCV engines except 60SP. 240mm Long

Flex Extension 65 - 91 330mm  


Price: £35.76 (Including VAT at 17.5%)
Quantity:  

OS Flexible extension - male/male threads to suit .65/.70/.80/.91 OS and OS copies, also fits all RCV engines except 60SP. 330mm Long
People who bought this item also bought:
1. Exhaust Deflector Medium
2. 2 Blade Aluminium Spinner

Flex Extension 1.20 - 1.80 120mm  


Price: £24.51 (Including VAT at 17.5%)
Quantity:  

OS Flexible extension - male/male threads to suit 1.20 OS and OS copies plus ASP 1.80 and new RCV 1.30. 120mm Long
People who bought this item also bought:
1. 120 - 180 Knuckle Manifold
2. FS Manifold Adapter 1.20 - 1.80
3. OS Outside Header 1.20 - 1.80

Flex Extension 1.20 - 1.80 240mm  


Price: £33.71 (Including VAT at 17.5%)
Quantity:  

OS Flexible extension - male/male threads to suit 1.20 OS and OS copies plus ASP 1.80 and new RCV 1.30. 240mm Long
People who bought this item also bought:
1. Orange Exhaust Silicone 18mm bore
2. OS Outside Header 1.20 - 1.80
3. OS Inside Header 1.20 - 1.80

Customer Comments

These new manifolds are brilliant - the answer to many prayers. Well done Just Engines. M Henderson. Scotland

These are fantastic - a really outstanding product. Well done. D Lawson

Questions

Please ring, fax or email for more information or pricing, or if you can't see what you need.
Tel: 01228 712800, Fax: 01228 712800, Email: justengines@enterprise.net

Just Engines Online | Four Stroke Exhaust Systems |  Four Stroke Manifolds

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