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Pulsing/ surging

Old 08-15-2005, 11:51 AM
  #2  
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Re: Pulsing/ surging

This is embarrasing to admit but this very thing happened to me on Friday night. I was in a pissed off mood and went out for a ride with some buds to clear my head. The bike was running just as you describe. Turns out I left my choke on.
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Old 08-15-2005, 12:42 PM
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jschmidt
Right. Choke on or maybe bad chain. It's always hard to diagnose over the internet.
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Old 08-15-2005, 01:17 PM
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If you put it up on a stand and slowly rotate the wheel, you'll probably see a kink/tight spot in the chain. That's your culprit.
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Old 08-15-2005, 09:23 PM
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VTRBeefa
My bike did this from new.
Spoke to dealership about it and they said, thats what V-twins do...

I have since done some testing of my own and put it down to 2 things:
Fuel
I find it surges more on Regular than Premium or High Octane

Air fuel mix
I had a play with these settings after replacing air filter with A/M one. Bike needed jet kit to run properly with the air filter so i set it back to close to where the settings were, and the surging seemed to stop.
Also thought it may have something to do with the standard air filter from Honda and its "ridge" as since last service it is noticable again.

Now you have eliminated the airfilter as you have K&N and it should have been re tuned after jet kit with different settings for the air fuel mix... which really only leaves 1 constant in the equation...
Fuel.
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Old 09-02-2005, 09:18 PM
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Remember that chains stretch in the first 500 miles or so and then don't need much adjusting until right near the end of their life. That surging feeling is usually a good indicator that the chain needs adjusting - even if you think it doesn't because you've just changed it to a new one.
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