chain problems

[Leigh]

i just had to change my swing arm bearings because they were all screwed up and i couldnt get the bolt out so i had to cut the swing arm off... so a friend of mine had a swingarm around that was for an older style with the J-Arms..i threw that on it and put some new carrerier bearings in it... now my problem is when i adjust my chain my rearend shifts like crazy.... like as much as 2 inches if i measure from front to back wheel on each side.. so i figured out this trick i took a rachet strap and went from the axle to the control arm and cranked it down and got the back end all even... then i adjusted the chain and tightend everything up...everything was straight and nice till i took it for a ride for about 2 mins and the chain is loose again... i tightend the crap out of everything to the point where if i went anymore it would strip..why is this shifting like that???? is there a difference in the swingarm???

[BellicoseBanshee]

The '87 and '88 axle housing is different from the '89 and up. It switches from a four bolt to a two bolt set-up and the way it is bolted to the swing arm is different also. On the '87-'88, the housing brackets are on the outside of the swing arm brackets. On the '89 and up, the housing brackets are on the inside of the swing arm brackets.

 

Measure the bracket dimensions on the two swing arms and make sure they are the same. If not, you may have to shim it with spacers. I can tell you that an '05 swing arm did not work with an '88 carrier (a buddy cracked the swing arm on his '88 banshee and had to use the '05 carrier with the '05 swing arm he bought). I will never understand why Yamaha stuck with that design for twenty years , just like the stupid design Suzuki used on some of the Quadracers (that stupid sliding box , I hated that, too).

 

This may have nothing to do with the price of eggs and it may all bolt-up just fine, but it is something to look at.

[Leigh]

i put the newer style one on and it solved the problem... thanks