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Starting Member
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Last Login: 10/17/2008 8:27:17 PM
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| Gotta Bandit 600S...typical 4-cyl bike: The transmission always sounds as if it is 'winding up,' like if it was in 1st while coasting with the clutch pulled in, but in all gears. I think it stops when moving along in neutral. I think it is making the engine vibrate more. I had a tech guy look at it and he said it was OK, but I am not so sure. Anyone have a clue? Thanx. PS: I ride pretty conservatively...redline is at 12k but I never really go above 7-8k. Is there some tranny synchronizer stuck or something?
Trentor
2001 Bandit 600S
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UPDATE: I guess it doesn't whine like it's in 1st, because that's a different noise. I guess it is just coming from the drive chain. I just had the old, rusty chain removed (had a tight spot in it)...and the new one was installed a little tight so it won't need to be re-tightened as quickly.
Trentor
2001 Bandit 600S
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Junior Member
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| It isn't advisable to get a chain too tight. That can cause considerable extra stress on the output shaft bearings. Most of the time the makers want the chain adjusted with the motorcycle on the side stand or centerstand. This means the rear suspension is pretty much fully extended. The chain will be slightly tighter when the swing arm is compressed to about mid suspension travel. Better to adjust it as suggested, then do it again in a few hundred miles. Did you check the sprockets for wear? Many people suggest replacing the sprockets at the same time as the chain, since both sprockets and chain wear against each other.
Predictions are very difficult, especially about the future.
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Charon (7/27/2008)
It isn't advisable to get a chain too tight. That can cause considerable extra stress on the output shaft bearings. Most of the time the makers want the chain adjusted with the motorcycle on the side stand or centerstand. This means the rear suspension is pretty much fully extended. The chain will be slightly tighter when the swing arm is compressed to about mid suspension travel. Better to adjust it as suggested, then do it again in a few hundred miles.Did you check the sprockets for wear? Many people suggest replacing the sprockets at the same time as the chain, since both sprockets and chain wear against each other. Good advice about accellerated bearing wear, and overall sprocket wear Charon. I second it. I will say though, that because of uneven wear(tight and loose spots) chain tension is not an exact science. And since a chain can either loosen or tighten with compression(dependant on swingarm pivot location vs axle location), I usually shoot for about 3/4" of play with rider seated, no stand. Of course, YMMV! 
Minivans. Why is it ALWAYS the minivans?
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| I would do what Charon mentioned as far as replacing both of the sprockets as well.
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Yep, I had the sprockets changed with the new chain. But the bike is vibrating more when the engine gets hot. My wife and I went for a ride, and we were both amazed at how smooth it was...then it got more vibey as the trip went on.
Trentor
2001 Bandit 600S
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| Y' buy the bike new....or used? "Vibey"...leaves a lot to be desired...as mentioned before, y' GOTTA leave slack in the chain...the swingarm moves up and down as you ride...to say nothing of the suspension compressing (more) with a passenger on board. "Vibey" could be anything....including tire balance. Correct amount of fork oil...so many things, not necessarlily connected with the motor or tranny. But if it IS the motor or tranny...I hope you bought the thing new and are still under some warranty. I've been told that the Jap in-line fours (UJMs') ain't what they used to be. Progress, I guess. Good luck....and let us know!
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