chain problem

[Minibiker05]

ok i got my revmx and i have a problem the chain it wont sit on the rear sprocket properly

 

[Minibiker05]

if i replace the rear sprocket will it fix this problem?

 

[Minibiker05]

will this fit and it should fix this problem HD 39T REAR SPROCKET #428 CHAIN PITCH | Mini Bikes | Pitbikes | Dirt Bike Parts & Accessories | DHZ Mini Moto can someone tell me quick so i can make an order so i can have it before the weekend

 

[rgv4play]

Have you tightened the chain?
Otherwise it looks like the pitch of the chain is different to the sprocket, if this is the chain and sprocket that have always been on the bike the chain and sprockets will need replacing as over time cheap chains will stretch killing the sprockets pitch, I have seen a few gold china chains labeled did( def not real) that have had over 3 links of stretch and still went smooth but you couldn't push the bike backwards. I good chain should set you back at least 40 bills sprockets don't matter too much if the chain is good quality.

 

[rgv4play]

Looking at the pic is this bike brand new?

 

[Minibiker05]

it is brand new just got it today

 

[Minibiker05]

ok ill order a new rear sprocket

 

[rgv4play]

What numbers are on the chain?

 

[rumble]

There are to types of chain used on most pit bikes 420 and 428 pitch. You may possibly have a chin in one pitch and the sprocket in another, but that seems unlikely for a new bike.

See if there is numbering on the chain links and on the sprocket.

Also check if the sprocket is seated square and sitting correctly.

 

[Minibiker05]

428...........

 

[MiniFighter]

is it the right pitch chain?

 

[Minibiker05]

i ordered a new sprocket

 

[Minibiker05]

it fits the front sprocket properly just not the rear so i orderd a new rear 428 pitch 39t sprocket

 

[DHZ_XR8cing]

swing arm may be out of alignment and not running true with the sprocket.
The engine is in wrong or lose
Rear wheel not straight.