04-06-2015, 05:58 PM | #1 |
Join Date: Mar 2015
Posts: 13
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Chain keeps coming loose!
I'm having an issue with my chain. I'll get everything all tightened down, make sure the chains not too tight so when I sit on it, and when Im riding off road and the shock is flexing it has a little play in it. But when I am done riding, its always waaay loose.
After about 20 mins or so of riding itll get so lose the chain will come off the back sprocket, and I'm worried it'll get caught up in the casing somehow or something like that and really mess the bike up bad. I am hoping you guys can see something in the video that isn't right, or know of a way to fix this. Thanks in advance guys! You can check out the video here, http://videobam.com/mLXlZ |
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04-06-2015, 06:09 PM | #2 |
Join Date: Dec 2014
Location: Deerfield Beach FL
Posts: 1,410
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Your frame has little hash marks at the axle holes to gauge where you tighten down the axle nuts and chain tensioners. They should match on both sides of the bike to make your wheel straight. After you adjust the chain tensioners and then tighten down the axle nuts mark your frame and tensioners with a pen or pencil or chalk or marker or anything. Take the bike for a good ride. If after the ride the chain has loosened check the marks on the frame you made to see if the axle has slipped from where you have tightened it down. If it did add a couple of these under each axle nut.
Edit: Add the lock washers under each chain tensioner so the washer is between the tensioner and the frame. Edit Again: My bike has no lock washers and the axle has never slipped. Are you sure you are tightening the bolt down enough? The axle nuts have to be pretty snug. Do you own a torque wrench? / |
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04-06-2015, 06:11 PM | #3 |
Join Date: Dec 2014
Location: Deerfield Beach FL
Posts: 1,410
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And I think your spacers are good. And get a new tire quick.
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04-06-2015, 06:15 PM | #4 |
Join Date: Dec 2014
Location: Deerfield Beach FL
Posts: 1,410
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Kneel behind the bike a few feet back. Look down the sightline of the chain. If it is going straight to the engine sprocket then your spacers are good. If the chain is offset at all then something is wrong.
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04-06-2015, 11:45 PM | #5 | |
Join Date: Mar 2015
Posts: 13
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Quote:
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04-07-2015, 01:24 AM | #6 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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In addition to the excellent comments so far, does the nut feel like it is tightening up properly? If not, perhaps the threads are stripped.
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Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
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04-10-2015, 01:06 AM | #7 |
Join Date: Jan 2012
Location: ChCh , NZ
Posts: 2,265
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Had the same issue with the boys pit bike...
totaly a design f_ _ _ up... the swing arm pivot is to low... on a real motor bike the chain gets tighter as the rear wheell moves up but on these Chinese things it gets loser.. So you have to set the chain tight I put nylon disc each side of the rear sprocket to stop the chain de-railing.. made them 30mm bigger dia than the sprocket... But the ultimate cure was to buy the boy a Honda CRF150... Ps... the chain took out 2 ignition units & one side case before we sorted it...
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09 XT660R ... 06 TTR250 ... 80 Montesa H6 125 Enduro... 77 Montesa Cota 348 MRR "Malcom Rathnell Replica"... Current resto projects.. 81 Honda CT110... 80 Kawasaki KL250A1... 11 Husaburg TE125 enduro... "sold" along with another 31... Lifan 125 Pitbike.. "stolen" ... KIWI BIKER FORUM...... http://www.kiwibiker.co.nz/forums/content.php All the best offroad rides in NZ... http://www.remotemoto.com/ E-mail... xtpete1@gmail.com |
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