i just bought a new chain and a 12t sprocket for my scrambler everytime i jump it my chain becomes loose.
when ever i tighten it I loosen the 2 eccentric locking bolts and the other bolt o the left of them underneath the axle is that called the caliper mouning bracket bolt because on my manual it says tha the ca;iper bolt is on the right and his bolt that i loosen is on the left does anyone no why it is becoming loose thanks

 

Are you torqueing them down properly? Its dumb i know, but they make have to take alot of fl/bs. Also maybe the threads are stripped on the bolts if you've over torqued them.

 

If you don't have a chain tensioner,get one.It will solve most of youre problems.You still need to check your torque like Scotts88 recommended.Later.

 

Get a tensioner. Also the stock chain is the cheapest thing you will ever find. It just keeps stretching and stretching. Get a good chain like the 520 Xring from DID. The tensioner will solve the problem though.

 

i already bought a new 520 oring chain i dont no what kind it was though i cost $45

 

It is normal for a new chain to stretch some on the first couple of rides until it gets broke in a little. Of course unless it is an x ring chain that doesn't stretch much at all.