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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.

Help!!!


Discussion at Motorized Bicycle Engine Kit Forum in the Motorized Bicycle Trouble Shooting forum. I have just installed my 80cc kit and in the stage of firing it for the first time. However, the ...
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Old 11-21-2009, 05:09 AM
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Default Help!!!

I have just installed my 80cc kit and in the stage of firing it for the first time.

However, the back wheel won't move unless with an extreme push of the pedal or with a hard push of the bike.

Whether the clutch lever is engaged or not, the back wheel will not move withe extreme physical exertion as mentioned previously.

What's going on?

Help!!!
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Old 11-21-2009, 05:33 AM
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Default Re: Help!!!

Quote:
Originally Posted by I Love My Bicycle View Post
I have just installed my 80cc kit and in the stage of firing it for the first time.

However, the back wheel won't move unless with an extreme push of the pedal or with a hard push of the bike.

Whether the clutch lever is engaged or not, the back wheel will not move withe extreme physical exertion as mentioned previously.

What's going on?

Help!!!
Are you sure that your clutch cable is pulled tight? Down on the clutch cable by the clutch arm, make sure that part of cable is degreased, then push the clutch arm in as far as you can with out dis-engaging the clutch, then push the cable lock tight to the arm, and tighten, see if it works when you pull the lever, if not try getting it tighter. Hope this helped

Last edited by Bikeguy Joe : 11-21-2009 at 08:41 AM. Reason: changed the word "engaged" to "dis-engaged" HUGE difference.
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Old 11-21-2009, 10:20 AM
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Default Re: Help!!!

Quote:
Originally Posted by rkorson4209 View Post
Are you sure that your clutch cable is pulled tight? Down on the clutch cable by the clutch arm, make sure that part of cable is degreased, then push the clutch arm in as far as you can with out dis-engaging the clutch, then push the cable lock tight to the arm, and tighten, see if it works when you pull the lever, if not try getting it tighter. Hope this helped
Yep. Clutch cable and arm are fine.

How am I supposed to start my bike when my back wheel doesn't even roll without extreme push or step on the pedal?
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Old 11-21-2009, 11:07 AM
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Default Re: Help!!!

Quote:
Originally Posted by surfer mike View Post
way out in left field, but do you have the chain too tight?
What is the standard for setting chain?

How much deflection?

I can't even roll the rearwhell backward or forward without extreme push of the bike or pedal.
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Old 11-21-2009, 11:40 AM
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Default Re: Help!!!

1/2"-3/4" is in the ballpark.

Can you push your clutch arm over enough to disengage it by hand?

You should be able to.
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Old 11-21-2009, 11:41 AM
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Default Re: Help!!!

I have read and personally experienced that the clutch can lock up from non-use. When I recieved my motor I thought something was wrong. I had to disengage the clutch and get the drive sprocket to break free again (I dont recomend my method as in the wrong hands it could go very wrong, but it took considerable shock). Now the clutch behaves perfectly at least so far, I am still building and have not fired it up.
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Old 11-21-2009, 12:30 PM
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Default Re: Help!!!

Thanks everyone.

I have just figured out what one problem was. I accidentally put my regular chain on the wrong gear.

Now my regular chain is in regular gear and I could pedal my crank backwards

Anyways, pedal forward still require great amount of physical exertion.

BTW. Should my clutch lever be in locked position when I pedal normally?
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Old 11-21-2009, 01:11 PM
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Default Re: Help!!!

Yes. It will still drag a little if it's not just right.
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Old 11-21-2009, 07:49 PM
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Default Re: Help!!!

Quote:
Originally Posted by Bikeguy Joe View Post
Yes. It will still drag a little if it's not just right.
OK. It drags.

What do I do?

Thanks.
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Old 11-21-2009, 10:25 PM
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Default Re: Help!!!

Push the arm a bit more, and re-tighten the cable end. The final adjustment is pretty touchy.
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