I was riding the other day when all of a sudden i heard a poppng sound comming from up front. i stopped at the light, when i began to take off it stalled. i figured i was low on fuel so i filled it up. still after that it was running rough all the way home. what i notice when i start it up is that the long ehaust pipe that comes from the front feels cool to the touch while the shorter one gets hot. the bike is a 2006 yamaha vstar 1100 with 700 miles, of course out of warranty. i tried riding it and there is no power it just lags and runs rough. thanks in advance.
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Possible Intake boots leaking causing a mistfire and running lean. Make sure you run the harley plugs. Is there a power commander on it ? If you do they are known to go bad and mess up runablilty.
This may be a long shot but since you have the magnelli marelli fuel injection system , you might need a hot/cold idle adjustments and clean out the inside of the throttle body.
Could be that you have blown the piston rings, firstly i would remove the rear silencer, as 2 strokes bellow out exsess smoke and loose power when the silencer becomes blocked due to carbon, start and run the bike and check without the silencer, furthermore to eliminate the exhaust itself is blocked, undo it from the cylinde
Sounds like the carb is frozen or the ignition timing is way out (check distributor and loosen the clamp, turn it slightly with the engine running until it idles and revs up nice) . Reset the ignition timing, if that does not cure it, a carb rebuild is on the cards.
Sounds like: A: The starter clutch is slipping and not letting the starter engage the crankshaft B. The carbs need to be cleaned. If ti has sat unused for more than 30 days, the pilot jets are clogged up causing it to stall (off choke) and be sluggish on acceleration off idle.
dont give up on it yet. the CDI costs much! This sounds like a wiring problem. I've had the same problem before but i checked and traced the wiring and found out that the positive lead wire is making contact with the chassis.. due to vibration and just, it must have eaten the insulator. Check on this part. Also, make sure that your carb jets and spark plugs are clean.