hey whats up people? i have a question that i need answered! i own a 2000 yamaha blaster, i just had to change out the carrier bearings ( and that was actually tougher and longer than i thought it would take) but now i got everything back together again, but before i put on the tires i realized that my chain is really loose.. how do i tighten it? and how do i know if it is too tight? i dont want to mess anything else, its my first quad and i dont have a lot of knoledge of atv's. please help me a.s.a.p, thanks

 

The Yamahas use the 2 bolts on the back of the swing arm to move and tension the carrier and chain. You will see 2 long bolts with jam nuts on them, loosen jam nuts and turn in bolts to tighten. Turn each equally a little at a time until you get the slack out, you want to see about 5/8 to 7/8 of an inch of chain movement in the middle of the chain, best thing is to have someone sitting on it while setting up, this puts the riders weight into the tensioning, so it wont snap from over tightening. Biggest thing with the Yamaha set up, make sure you turn the bolts equally, or axle will sit crooked, possibly throwing chain or causing other problems.

 

your doing maintenance to it without a repair manual? thats your first mistake, i recommend getting one, it'll save alot of time searching the web for these simple things. what the previous poster posted i assume would be right for chain tension, iirc on my warrior(which is only 3" longer swingarm) requires 1-2" of play if i recall correctly, have to go check my manual

 

thanks

 

don't forget to lube the chain every time you ride OK? they tighten up as they get dry and that will ruin your sprockets in a hurry!

 

okay thanks

 

And put on a hat! It's cold outside.

Ok, that was just something my mom used to say. But you know you can't argue with mom.

 

lol

 

you also need to loosen the bolts that mount the rear axle on the carrier or you'll end up digging those bolts into the swingarm and not really get any more tension on the chain. loosen those two bolts enough so that it moves and then tighten your chain. then make sure to torque down those two bolts again.