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Motorized Bicycle General Discussion All topics regarding bicycles with engines.

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Old 05-03-2010, 05:53 PM
metalliatic's Avatar
metalliatic metalliatic is offline
Motorized Bicycle Senior Member
Join Date: Mar 2010
Location: Louisville Ky
Posts: 96
Default digital tach update question?

got my tach today but need to know how many times the spark plug sparks in 1 rpm? i think the answer in 1 time per revolution because its a 2 stroke motor. and 2 times per revolution for a 4 stroke? right?
its not how fast you go... its how you go fast
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Old 05-03-2010, 10:25 PM
jviperm jviperm is offline
Motorized Bicycle Newbie
Join Date: Oct 2009
Location: Port Huron, MI
Posts: 13
Default Re: digital tach update question?

2 Strork fires ever revolution. I know that your 4 stroke lawnmower fires ever revolution
and car engines fire ever 2 revolutions.
I'm gussing that the 4 stroke engines used for our bikes probably fire every revolution.
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