Just Engines Online

HomeSite MapSearchCheckoutStore TopUp a LevelContact Us

Product Sections

Main Pages

New Products

JEN Upright / Inverted .40-.57 Muffler

JEN Upright / Inverted .40-.57 Muffler

£22.50

37mm hole centres for OS, Irvine, J'EN, ASP and other OS copies .40-.57. Supplied with fixing bolts. Dimensions a = 75mm. b = 48mm. c = 20mm. ef = ...
find out more

Genesis Pusher Pipe 40 to 57

Genesis Pusher Pipe 40 to 57

£34.94

Genesis Pusher Pipe .40 to .57 Engines - 37mm exhaust fitting
find out more

Single Ignition for Glow Plug Thread

Single Ignition for Glow Plug Thread

£45.00

Supplied with 2 sizes of sensor holder, hall effect sensor and cable tidy for the wiring. Battery, spark plug and magnet not included.
find out more

J'EN 1.60 (26cc) Petrol Engine

J'EN 1.60 (26cc) Petrol Engine

£169.00

After months spent in testing and developing we are now very proud to present our first J'EN Petrol Engine. Its main features: !!<

JEN .91

JEN .91

£79.99

The .60 that knows it's a .90! This is the Jen .91 MK 2, now with retimed liner, baffled silencer and improved compression ratio and still only £79.99! !!<

Smoke System for 2 Strokes

Smoke System for 2 Strokes

£55.00

This is a very straight forward smoke system that is powered by a Perry pump. No need for batteries and therefore no need for wiring and charging. This ...
find out more

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

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

120 - 180 Knuckle Manifold  


Quantity:

Angle Select

These manifolds fit all OS and OS copy four strokes from 120 - 180 size and new RCV 1.30 and are supplied complete with lock nuts

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.

S65 - S91 Knuckle Manifold  

Angle Select

Sorry, these manifolds are currently out of stock, we are endeavouring to obtain more but due to supply problems it may be several months.

These manifolds are to fit Saito 65 - 91 Engines and are supplied excluding lock nuts.
Sorry only avaliable in 90 Degree.

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.

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.
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 Saito).

Please state engine model and size:

Standard FS Manifolds

Standard FS Manifolds

Standard exhaust manifold - as supplied with the engine.

FS Manifold 40 - 61  


Price: £10.00 (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.

FS Manifold 65 - 91  


Price: £11.00 (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.

FS Manifold 1.20  


Price: £12.00 (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.

FS Manifold 1.80  


Price: £12.00 (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.
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.

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.

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.

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.

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.

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).

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:

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: £19.00 (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

OS Outside Header 65 - 91

OS Outside Header 65 - 91


Price: £19.00 (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

OS Inside Header 1.20 - 1.80

OS Inside Header 1.20 - 1.80


Price: £19.00 (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.

OS Outside Header 1.20 - 1.80

OS Outside Header 1.20 - 1.80


Price: £19.00 (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.

Flexible Extensions

Flexible Extensions

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

Flex Extension 40 - 61 120mm  


Price: £23.99 (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

Flex Extension 40 - 61 240mm  


Price: £30.00 (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

Flex Extension 65 - 91 120mm  


Price: £22.50 (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

Flex Extension 65 - 91 170mm  


Price: £24.99 (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

Flex Extension 65 - 91 240mm  


Price: £27.51 (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. 240mm Long

Flex Extension 65 - 91 330mm  


Price: £32.50 (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

Flex Extension 1.20 - 1.80 120mm  


Price: £22.50 (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

Flex Extension 1.20 - 1.80 240mm  


Price: £30.00 (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

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

Just Engines, Registered in England, no: 4846519, Registered office; Newby Cross Farm, Newby Cross, Carlisle, CA5 6JP

© 2006 Just Engines  Contact Us | Privacy Policy | Terms & Conds