so the title basically said it all. yesterday i tightened my chain for it to have a 1 inch slack... i went riding with my friends for about a hour and i went to check up on my chain n now the chain slack is like 2-3 inches.. and its able to touch the swingarm.. anyone know what i can do to prevent this from happenin again?

BTW> this is not a one time thing.. it happens over.. and over.. and over...

 

How old is the chain? Sprockets? Where are the slack adjusters lining up in the swingarm?

Sounds like ancient chain to me.

 

if it is an old chain, it will stretch a lot. if it is a new chain that isn't pre-stretched it will also stretch a ton before it finally settles

 

its actually a 1 month old chain and sprocket set.. but i found out what it might be.. so me n my friends went out for a ride for about an hour then we hit up a stunt spot.. did a couple wheelies then i stopped and check out my chain.. and i saw at the end of the swingarm(on the sprocket side), where theres the bolt that adjusts the chain tension and the bolt tightens down the alloy piece.. that alloy(or alluminum) piece was BROKEN in half and im missing the other half(somewhere long gone on the freeway).. and just hanging by some threads.. what do i do about this?! surprizingly i made the 1 hour ride back home safely...

 

What do you do? You replace it lol.

 

Ya as long as your axle is tightened to spec you'll be ok without one of them while you wait for a new one

 

Those are called chain slack adjusters, and are there to make adjusting the chain slack something easier than a suicide-inducing nightmare. With the axle slacked, you can make very fine adjustments to the axle position with them. Otherwise you'd have to move the axle directly, making it a nightmare.

Doesn't really answer your original question, though. Is the axle torqued correctly?

 

mmm negative. i'm one of those home-mechanics that just enough tools to get you by. which means no torque wrench =[. however i tightened this by hand. i stood on the other ride of the exhaust and i was leaning a little over the seat while pulling withhh all my might to tighten the axle bolt.. i puled hard enough to where the bike lifted to my stomach, and the rear shock compressed like a quarter way up.. but im no puff guy 6'2 155.. lol

 

Sounds like you overtightened it - ALOT!

If you do not know how much to tighten - it is always better to undertighten than to overtighten.

 

Yeah, that was one thing that amazed me about these bikes - the torque on most of the bolts, even the axles is VERY low. I went and bought a torque wrench out of fear of over-tightening everything. I know they're pricey, but it's one of those things you'll use all the time once you have it. Just be sure not to throw it in the drawer with the rest of your tools, cuz it'll get de-calibrated. Keep it in it's protctive box.