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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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  #1  
Old 07-12-2008, 10:09 PM
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Default Water damage...?

I went through some rain...the motor quit on me

the next day , I found water (very little) in here..

now i can't get the motor started again... oh it cranks, but won't turn over on its own

suggestions??
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  #2  
Old 07-12-2008, 10:15 PM
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Default Re: Water damage...?

I ride in the rain all the time....well as much as it rains in the desert..
I use RTV around the cover and the rubber seal for the wire's.

Have you checked for spark? Try to dry it out...I got mine wet one time and sprayed with WD-40. Dried it out and it fired right up.
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Old 07-12-2008, 10:18 PM
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Default Re: Water damage...?

You could pull the cover off and put a light bulb right underneath it. That would evaporate any moisture. Or like fair said WD-40 will do the trick too. Those are both old tricks from back in the old distributor days..........................
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Old 07-12-2008, 11:50 PM
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Default Re: Water damage...?

i'll try the WD40...
how do I check for spark?
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Old 07-13-2008, 12:11 AM
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Default Re: Water damage...?

Hair dryer might also work.......
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Old 07-13-2008, 12:42 AM
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Default Re: Water damage...?

Quote:
Originally Posted by MrLarkins View Post
i'll try the WD40...
how do I check for spark?
You could pull your plug out and hold it next to your motor and crank the motor. But that's hard to do with these bike's.

I use a Spark plug tester...Pull your plug out so the motor will crank easier
It can be picked up at any local auto parts store. Or you can make one using a spark plug and aligator clips. Just solder the aligator clip to the plug.




You could also make one like Norman's....http://motorbicycling.com/f4/tester-ignition-207.html
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Old 07-13-2008, 12:56 AM
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Default Re: Water damage...?

I would suspect your kill switch or external connections first.....good tips from the other fellas....

Lemme tell you, I try not to get rain in my knickers but other than that my engine gets pretty wet without issues....if I let rain completely keep me from riding, I would go whack.
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Old 07-13-2008, 08:38 AM
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Default Re: Water damage...?

hmm, ok, I'm not as worried now

well, I took the head off and just rolled the bike....I didn't see any spark

Last edited by MrLarkins; 07-13-2008 at 08:47 AM.
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Old 07-13-2008, 09:40 AM
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Default Re: Water damage...?

Well dry it out, the kill switch could be wet and shorting as well. Always test spark with a known good plug...or Norman's unit....
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Old 07-13-2008, 09:51 AM
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Default Re: Water damage...?

i did use a known good plug AND I had the kill swith ground wire disconnected...what did i miss?
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