I bought a $15 chain tensioner (ordered on line through McMaster-
Carr) that fixed an occasional chain problem I had when landing hard
off a jump.

--- In offroadgokarts@yahoogroups.com, "Matt" <matt1ptkn1@y...>
wrote:
> I have a single seat kart, with a live axle, 18" rear tires, a
TAV30
> torque converter with the newer aluminum mounting plate and a 10
> tooth drive sprocket, #35 high performance kart chain, and a 5 HP
> Briggs engine with the governor removed. I have modified the
frame
> and it is solid. The axle does not shift sideways, and the frame
> does not flex. The engine does not rock or slide and the
sprockets
> are straight and in line. But the chain still jumps!!!! It will
> work great for a while, 10-20 mins or so; the kart has plenty of
> power and speed and I don't drive crazy, but then the chain
jumps. I
> believe it is stretching, because of everything I mentioned above,
> and after it jumps it is obviously a little looser. But it is a
> brand new high performance chain. Is it normal for chains to
stretch
> this much, and with only 5HP? I am thinking of making the switch
to
> #420 chain, but I would rather avoid spending the $$, and I am not
> positive that would cure this problem. I had this exact setup on
> another kart, using the exact same chain, and never had it jump
> once. I am at my wits end trying to figure out why exactly the
chain
> jumps, and how to cure it. I have never had this much chain
trouble
> before. Anyone else ever go through this or have any suggestions?