popping sound when accelerating from dead stop

[busaboyk7]

Anyone ever hear a "popping" sound when accelerating from a dead stop....like from a stop sign/light? Not launching...i mean just normal, gradual acceleration. Chain adjusters/axle nut are tight, driveline from output shaft to rear sprocket seems to be ok. I think it is in the tranny. I also have probs with downshifting to first when decelerating to a stop. Not always easy to get into 1st. I rode an 05 Busa a couple weeks ago, and his tranny felt butter smooth compared to mine.......and he is running Mobile full synthetic, I am running a synthetic blend (actevo). I do have a habit of doin mad max's from time to time, but i was under the impression that the transmission in the busa is basically bullet proof. ??

 

[supertech]

definitely not bulletproof. does the popping sound like its coming from under you or behind you?

 

[busaboyk7]

sounds like it's coming from the tranny (under me). I think I'm going to change the oil and send a sample in for analysis.....the bike only has 5000miles on it.

 

[Wag]

Make sure your sprockets are not out of alignment. If they are, you can see it wearing on one side or the other of the rear sprocket.

--Wag--

 

[Fate]

Sounds like chain and sprocket out of align to me. How is the slack on chain?

 

[300Busa]

I have heard it before. I never could figure out where it came from. It just stopped doing it one day.

 

[Sloto200]

mine did this almost all the time... almost every time i would stop, i would hear a klunck noise as soon as i would leave a red light or stop sign. I never could figure out what it was. It sounded like it was coming from the drive train or possible the steering head. I put over 11000 miles on my busa before i sold it and never figured it out.

 

[busaboyk7]

thanks for all the input, I will double check chain and sprockets.When I adjust it, I always use a ruler w/ 32nd inch increnents on it, then check the tracking afterwards as well. Those "alignment" marks on the swingarm don't seem too precise to me.....

 

[busaboyk7]

Fate, the slack in the chain is within spec. This does not sound or feel like the chain...it almost feels/sounds like a motor mount that is not tight or something. I guess that would make since when pulling off from a dead stop after coming to a stop....hmmmm. I put frame slider on it a few weeks ago.....but it was doing it before then, I tightened bolts to spec. I will go and check torque for all motor mount bolts. Didn't really think about that until I was mingling w/ you guys on the org. Thanks....will update later.

 

[Wag]

Not talking about the slack, talking about the sprocket alignment. If the front sprocket is slightly to the side of the rear, then your chain will not track in a straight line and damage will ensue.

Let us know what you find out.



--Wag--