bad vibrations, weird clutch, no broken mounts???? - Page 2

bronevaya · 12-11-2007, 04:47 PM

Quote:

Originally Posted by fatboy250

I know this sounds silly, but try tightening your chain. If anything changes because of it then this is the culprit. I've noticed there to be a fine line between too tight (no vibes from the chain, but also not good for the running gear) and too loose and you're getting vibes at different rpms that you never had before.

you know, I did think about it, when I was down there I noticed a little more slack then usual (when I first got it I commented on how tight it was). But I thought to myself "surely this couldnt be the problem), I will give it a try and report back.

TheBrainII · 12-11-2007, 05:00 PM

Ditto on the chain. Try to make sure it's not to tight. When you sit on it the chain will get tighter. So try to set the slack so you have a little slack when you are sitting on the bike with the rear end compressed.

bronevaya · 12-11-2007, 10:03 PM

ok, before I get to it, whats the proper procedure to adjusting the chain? Just loosen the nuts and move the wheel?

fatboy250 · 12-13-2007, 08:39 AM

I only loosen the axle a small amount, because I want the adjustment nuts to be snug as a go. Then when I get the chain where I want it, I'll tighten the axle back down.

ON A SIDE NOTE: I recently had to retighten my engine mounting bolts. I had lock-nuts on them too. I had some vibes that started this past weekend and I looked over the whole bike. I saw all the bolts were there, but did not check to see if they were tight. I went through everything before I finally decided to check the bolts one good time. Finally found that I had a loose lower bolt (the same one I replaced with a lock nut!!) So, this may be worth a go. I also found I had a broken tab on my muffler lower mount to the frame. I fixed that with band clamp. It's behind the panel so you really can't see it, but this was adding to some of the vibes too. NOW, everything is back to normal.

Jason

bronevaya · 12-13-2007, 03:39 PM

I tightened the chain, but I think I made it a bit worse??

arrgghh, I am ready to take this to a shop

every bolt I try and turn is already tight :(

fatboy250 · 12-15-2007, 05:10 PM

I'd hate to think it's your tranny. But you could check it by getting up to the bad vibe speed and pulling in the clutch while keeping the RPM's the same. If it goes away then you may have a tranny problem.

TeamCheap · 12-15-2007, 05:24 PM

I wonder if dropping your oil into a CLEAN container would show you anything like little chunks of metal or just a high metalic amount of particles.

If something in there is going\wearing it should have some debri I'd think.

Not that it would help other than to maybe indicate there is a problem.

bronevaya · 12-17-2007, 02:11 PM

TA-DA!!! I AM STUPID!! :oops:

so I found it, a loose bolt, just like you all said. Thing is, it wouldnt tighten on one end, but did on the other. Add to the fact that plastic and wires were in the way.

thanks for all the help guys, put about 30-40 miles on it sunday without a hitch.

its just so damn cold out now, brrr.

fatboy250 · 12-17-2007, 03:56 PM

Well keep an eye on it, cause I've had two break. I replaced those with grade-8 1/2" bolts and all is ok. I just think the original bolts are just not up for the task.

12-11-2007, 05:00 PM	#17
TheBrainII Join Date: Jun 2007 Location: PA Posts: 129	Ditto on the chain. Try to make sure it's not to tight. When you sit on it the chain will get tighter. So try to set the slack so you have a little slack when you are sitting on the bike with the rear end compressed. __________________ Bone stock 2007 Lifan GY-5
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12-13-2007, 08:39 AM	#19
fatboy250 Join Date: Sep 2006 Location: COLUMBIA, SC Posts: 973	I only loosen the axle a small amount, because I want the adjustment nuts to be snug as a go. Then when I get the chain where I want it, I'll tighten the axle back down. ON A SIDE NOTE: I recently had to retighten my engine mounting bolts. I had lock-nuts on them too. I had some vibes that started this past weekend and I looked over the whole bike. I saw all the bolts were there, but did not check to see if they were tight. I went through everything before I finally decided to check the bolts one good time. Finally found that I had a loose lower bolt (the same one I replaced with a lock nut!!) So, this may be worth a go. I also found I had a broken tab on my muffler lower mount to the frame. I fixed that with band clamp. It's behind the panel so you really can't see it, but this was adding to some of the vibes too. NOW, everything is back to normal. Jason __________________ 2008 Jonway MC-70-150 2007 Roketa DB-07B (RSM-200E) 2006 Roketa DB-07A (RSX-200E) 1995 Kawasaki Concours (ZG1000)
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12-15-2007, 05:10 PM	#21
fatboy250 Join Date: Sep 2006 Location: COLUMBIA, SC Posts: 973	I'd hate to think it's your tranny. But you could check it by getting up to the bad vibe speed and pulling in the clutch while keeping the RPM's the same. If it goes away then you may have a tranny problem. __________________ 2008 Jonway MC-70-150 2007 Roketa DB-07B (RSM-200E) 2006 Roketa DB-07A (RSX-200E) 1995 Kawasaki Concours (ZG1000)
	0

12-17-2007, 03:56 PM	#24
fatboy250 Join Date: Sep 2006 Location: COLUMBIA, SC Posts: 973	Well keep an eye on it, cause I've had two break. I replaced those with grade-8 1/2" bolts and all is ok. I just think the original bolts are just not up for the task. __________________ 2008 Jonway MC-70-150 2007 Roketa DB-07B (RSM-200E) 2006 Roketa DB-07A (RSX-200E) 1995 Kawasaki Concours (ZG1000)
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12-11-2007, 10:03 PM	#18
bronevaya Join Date: Jun 2007 Posts: 162	ok, before I get to it, whats the proper procedure to adjusting the chain? Just loosen the nuts and move the wheel?
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12-13-2007, 03:39 PM	#20
bronevaya Join Date: Jun 2007 Posts: 162	I tightened the chain, but I think I made it a bit worse?? arrgghh, I am ready to take this to a shop every bolt I try and turn is already tight :(
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12-15-2007, 05:24 PM	#22
TeamCheap Join Date: Jun 2006 Location: directly under the earths sun............NOW Posts: 2,302	I wonder if dropping your oil into a CLEAN container would show you anything like little chunks of metal or just a high metalic amount of particles. If something in there is going\wearing it should have some debri I'd think. Not that it would help other than to maybe indicate there is a problem.
	0

12-17-2007, 02:11 PM	#23
bronevaya Join Date: Jun 2007 Posts: 162	TA-DA!!! I AM STUPID!! :oops: so I found it, a loose bolt, just like you all said. Thing is, it wouldnt tighten on one end, but did on the other. Add to the fact that plastic and wires were in the way. thanks for all the help guys, put about 30-40 miles on it sunday without a hitch. its just so damn cold out now, brrr.
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