Thread: mph issue
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Old 11-18-2009, 10:03 AM
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Venice Motor Bikes Venice Motor Bikes is offline
Custom Builder / Dealer/Los Angeles
Join Date: Mar 2008
Location: Los Angeles, CA.
Posts: 6,017
Default Re: mph issue

I've found on my bikes that the 'surging' is from the engine being very close to being the right mixture but a little too much on the rich side. it feels like the bike is bogging & then it will get a little 'crisp' burst of speed, then go back to bogging... re-jetting a little smaller has always fixed it.
This is also how I know when I have the jetting right, it will run real crisp & clean with just a small bit of 4-stroking. (the little bit of 4-stroking tells me that it's not too lean!!)
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