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Geared Starter Battery Carrier

Geared Starter Battery Carrier

8.50

Especially designed to fit the 4:1 and 6.5 : 1 geared starter. Laser cut from zinc plated steel the battery carrier bolts to the starter to carry most sizes of battery, ...
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GF38 Prop nut and Lock nut

7.50


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Walbro HDA Repair Kit

Walbro HDA Repair Kit

15.60

Contains all the filters and diaphragms needed to overhaul any Walbro HDA carb.
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BCMIOS46LA

BCMIOS46LA

39.54

BCM Inverted Muffler for OS 40/46LA also fits most engines with 35mm fixings, including OS 35AX, ASP/SC 32/36 and Irvine 36/39. Fixing holes at 35mm centres. Dimensions:a=68mm b=49mm c=19mm ...
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BCMIEV20RC - BCM 5619

BCMIEV20RC - BCM 5619

75.58

BCM Inverted muffler for the Evolution 20cc petrol engine with a cut away for round cowl. Dimensions: A=90mm D=64mm L=115mm W=30mm. The exhaust flange is 12mm thick.
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BCMWADL55B - BCM 10514

BCMWADL55B - BCM 10514

144.00

Wrap Around Inverted muffler for DLE55 with extra noise reduction. Dimensions A=3mm, B=76mm, C=25mm D=50mm. The exhaust flange is 10mm thick.
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BCMIDL35 - BCM 10506

BCMIDL35 - BCM 10506

78.60

BCM Inverted muffler for the DL35 rear exhaust. Dimensions A=76mm B=51 C=115mm. The exhaust flange is 10mm thick.
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BCMIOSGT33 - BCM 4034

BCMIOSGT33 - BCM 4034

75.58

BCM Inverted muffler for the OS GT33cc petrol engine. Dimensions A=76mm D=82mm L=102mm W=32mm. The exhaust flange is 32mm thick.
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Zenoah G800BPU 80cc Flat Twin Aero Engine

Zenoah G800BPU  80cc Flat Twin Aero Engine

599.00

!!<Specification:

Cylinder displacement: 79.9 cm / 4.88 cu.inch
Cylinder bore: 40.5 mm / 1.59 inch
Cylinder stroke: 31 mm / 1.22 inch
Power output: 4.34 kW
Carburettor: ...
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Zenoah G62PU 62cc Aero Engine

Zenoah G62PU  62cc Aero Engine

310.00

!!<Specification:

Cylinder displacement: 62 cm / 3.78 cu.inch
Cylinder bore: 47.5 mm / 1.87 inch
Cylinder stroke: 35 mm / 1.38 inch
Power output: 3.15 kW
Carburettor: ...
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G450PU 45cc Aero Engine

G450PU 45cc Aero Engine

299.00

45cc Side exhaust petrol Engine with Zenoah Magneto ignition as standard !!<Specification:

Cylinder displacement: 45 cm / 2.75 cu.inch
Cylinder bore: 43 mm / ...
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Zenoah G380PU 38cc Rear Exhaust Aero Engine

Zenoah G380PU  38cc Rear Exhaust Aero Engine

238.00

38cc rear exhaust engine with magneto ignition as standard !!<Specification:

Cylinder displacement: 37.4 cm / 2.28 cu.inch
Cylinder bore: 38 ...
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Zenoah G260PU 26cc Aero engine

Zenoah G260PU  26cc Aero engine

244.00

!!<Specification:

Cylinder displacement: 25.4 cm / 1.55 cu.inch
Cylinder bore: 34 mm / 1.34 inch
Cylinder stroke: 28 mm / 1.1 inch
Power output: 1.62 ...
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1/8 Robart "T" couplers (pack of four)

6.50

For joining fuel tube good for glow or petrol. !!<Glow OnlyPetrol Only Suitable for Glow fuel ...
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3/32 Robart "T" couplers (pack of four)

3/32 Robart

6.50

For joining fuel tube good for glow or petrol. !!<Glow OnlyPetrol Only Suitable ...
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Just Engines Ignition Systems Info

Can I use this system on any engine?
More or less, yes. It is not designed for engines designed to transport people.
 
Is it a difficult job?
It does involve some basic engineering skill. The magnet needs to be mounted in the prop-driver and the hall-effect sensor needs to be mounted on to the crankcase.
 
What will I need to complete the conversion?
You will need a single ignition, the 120 degrees cap one is designed to be a better fit on the more recessed plugs on four strokes, the standard 90 degree cap is suitable for all other engines. You will need a spark plug, and a magnet. You can see and order these items here.
 
Do I need to adjust the compression?
Yes you will need to either lower the compression of your engine slightly or retard the ignition slightly. Lowering the compression is by the addition of head shims - generally available as spares for the engine - we sell shims for all our ASP (also fit SC/Magnum) and our JEN engines here.
 
Can I use Glow fuel with spark ignition?
Yes you can. You will need to adjust the timing or compression accordingly.
 
Can I fit your ignition system as a replacement to my petrol engine?
As a rule yes. Our unit works with one magnet in the drive hub. If your engine has two magnets one would need to be removed first. You will need to measure the AF (across flats) measurement of your spark plug as the units are sold to fit specific plug sizes. (The plug caps are designed to fit tightly over the plug.)
 
Do I need to change the carburettor?
No, most of our customers find they can continue using the same carb. The adjustments are a bit finer for petrol but achievable. Walbro carbs are available for engines of 17cc 1.00CU upwards. Note they do need a pressure feed from the crankcase to operate the pump.
 
What Petrol Oil mix should I use?
We recommend 20 - 25 : 1. Use a good two stroke oil from your local garage or garden centre.
 
Will I lose power?
Yes you will lose a bit of power but you will gain fuel economy. Most modellers are happy with the trade.
 
What else will I need to do?
If you are converting an engine from glow fuel, you will need to change the fuel tubing and the bung from your tank.
 
Do I need a kill switch?
Petrol engines are designed to tick over with the carb fully closed. So it is a wise precaution to be able to stop the engine remotely.

Questions

Order Line: Tel: 01747 835817 - 8.30 to 12.30 and 1.00 to 4.00 Mon to Fri.

For further information, pricing, or if you just can't see what you need, please ring us as above or Email us at support@justengines.co.uk