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Motorized Bicycle Trouble Shooting Use this area to post problems that may arise that you could use some help in figuring out what is wrong with their bicycle motor and what needs to be done to achieve top performance.

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Old 08-20-2008, 08:36 AM
Ranger Ranger is offline
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Join Date: Aug 2008
Posts: 55
Default Took flywheel off....now wont start

On my ryobi 31cc I took the flywheel off to access the stronger mounting holes on the engine. When I put it back on it wont start now. I also took off the cylinder and cleaned it.

I made sure the gap was right and it has spark, I also made sure that everything is there and is working properly.

It just wont start, I think I got it to fire but just wont run.

Any advice would help.
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Old 09-01-2008, 06:49 AM
Biker Mike's Avatar
Biker Mike Biker Mike is offline
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Join Date: Mar 2008
Location: Cropwell Alabama
Posts: 144
Default Re: Took flywheel off....now wont start

Did you check the flywheel sheer key? I'm not sure about a ryobi but on most engines there is a key that aligns the flywheel and crank to make fire at the proper time. A sheered key would give you spark but not crank as the spark is not in time with the piston. I hope this helps. Good luck.
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