yes i put a set of epi 58 grahm bellybuster weights that i bought new off of ebay for $30 and a orange spring. it raised my engaugment rpm slightly but gave me alot more power in highrange.

 

on a 400 sportsman 4 stroke

 

you wont regret it.it will work on your 400.epi pits out several kits if you ride in the mud alot i would go with the mudder kit or the big foot kit.you can buy these cheaper on ebay.you can find all kinds of parts and excesories on ebay pretty cheap. by the way your 400 is actualy 425 cc

 

i was just looking on ebay and did not see any ,,,, how about a heel clicker

 

i havent personaly seen these in use but have read that they put more tension on the belt for a better grip.you need the new style clutch cover for these because the heel of them stick out some.you should have this cover on your 04 bike already.

 

I don't want to hi-jack the thread but....., can it be explained how to set my secondary to 2-2. I have changed my primary spring.

 

set the spring in each whole that you want(1 & 2 @ & 2exc)and turn you clutch clockwise a quarter turn then press it down into the spline grooves and replace the keeper.

 

if you go to the heelclicker website they have step by step//make sure you mark it

 

buy the way i am looking at a set of epi belly buster weights on ebay right now. key words epi clutch weights.

 

yea i see that, at the risk of sounding like a dumb*** shouldnt i just buy a kit.. i couldnot tell you what differnt weight /spring combos do. and get it right