Engine stall when weight applied - Pocket Bike Forum - Mini Bikes
 
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post #1 of 2 (permalink) Old 4 Weeks Ago Thread Starter
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Join Date: Jun 2019
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Engine stall when weight applied

Hello all.
Looking for some suggestions on an issue im having with my 49 CC 2 stroke engine pocket bike.
Idles fine and goes with full throttle as long as their is no weight on the bike (I prop the bike up to test it)
it will run at full throttle no issues.
However if theres any weight applied even if i just sligthly lean on the bike with full throttle cuts out every time.
I put on a brand new carb, cleaned out the exhaust and it has fresh pre-mixed gas/oil.

any ideas what else it could be?

Thanks
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post #2 of 2 (permalink) Old 4 Weeks Ago
BUILDEM,WRECKEM,REBUILDEM
 
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Join Date: Mar 2008
Posts: 20,789
Re: Engine stall when weight applied

Quote:
Originally Posted by Gavin Daly View Post
Hello all.
Looking for some suggestions on an issue im having with my 49 CC 2 stroke engine pocket bike.
Idles fine and goes with full throttle as long as their is no weight on the bike (I prop the bike up to test it)
it will run at full throttle no issues.
However if theres any weight applied even if i just sligthly lean on the bike with full throttle cuts out every time.
I put on a brand new carb, cleaned out the exhaust and it has fresh pre-mixed gas/oil.

any ideas what else it could be?

Thanks
Welcome to the forum.....

Sounds like a coil thats going bad or an airleak,,,maybe weak compression /bad reeds too

Have you tried checking the airgap between the coil and the flywheel making sure its tight and at at .020" airgap or even putting a new sparkplug first?

Pull the current sparkplug out and post a pic of its condition when its removed.............

NGK brand BM6A for reed inducted 2 strokers BPM6A for piston ported

Heres a link to a thread that shows how to post pics on the site pretty easily.....

https://www.pocketbikeplanet.com/170...learn-how.html

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Last edited by CAM2; 4 Weeks Ago at 07:56 PM.
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