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Old 10-06-2009, 07:17 PM
david sereno david sereno is offline
Motorized Bicycle Newbie
Join Date: Oct 2009
Location: 3502 olive ave long beach ca 90807
Posts: 1
Smile new guy

iam new to this form and want to say hello. i have made two motorized bicycles in this last month. iam hooked. the first one i had for two weeks sold it and bought another any way my name david and iam having problems with my motorized bicycle iam not getting any spark could someone tell me how i can test the mag i have multimeter but its not accurate to real low ohms. ican turn the motor over with a drill and hold the sprk plug with my hand nothy i just put a new cdi still nothy ican get 1 ac volt from mag turning wit drill w/b wire can some one reply with suggestion iam thinking i need a new mag but not sure.
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Old 10-06-2009, 11:09 PM
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2door 2door is offline
Super Moderator
Join Date: Sep 2008
Location: Littleton, Colorado
Posts: 16,222
Default Re: new guy

Welcome, you've come to the right place for help.
You said you held the sparkplug in your hand and saw no spark. The plug must be grounded against the engine case for it to work. You need a complete circuit. As for ohm readings try this:
Voltage readings will be something in the 70 to 80 volt range, AC from the blue wire to ground from your mag with the engine rotating either by pedaling or spinning the crankshaft with your drill. Get back to us if this doesn't answer your questions.
Age and Treachery Will Always Triumph
Over Youth and Skill & "Charlie Don't Ride"
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Old 10-06-2009, 11:12 PM
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bairdco bairdco is offline
a guy who makes cool bikes
Join Date: Aug 2009
Location: living the dream in southern california
Posts: 6,260
Default Re: new guy

you might not want to post your address up there where it says "location." someone might come over and steal your bike...
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