VmaxSx600
New member
Alright i was wondering if you all have some ideas on how i can improve my throttle response and HP i already got my head gaskets thinned and i got a can on it. Thanks for the help
yamyrider
Active member
reed notch or spacers, a little clutch work and you will notice a difference.
VmaxSx600
New member
Alright give me the low down on the reed notch stuff ive been hearing of... how do i do it?... how much more HP would you say i would gain if i did and is it a noticable difference?
you will notice a crisper throttle with the stopper mod. it is in the tech section. I did it so anyone can LOL Maxdlx
no low end burble as well with the stopper notch,did this to my sx700,made what i feel quite a noticable diffference in throttle response,hp gain is like 2-3 i beleive but dont quote me on it.but the notch is done to the top 3 stoppers only,and only good on non power valved triples
yamaholic22
Active member
He has the 600 twin doesn't he? If so the stopper notch won't do anything.
VmaxSx600
New member
dangit i do got a twin... i thought the twins had the boost port partially blocked tho? does anyone know anything else i could do to my twin for better horsepower and throttle response?
yamaholic22
Active member
find a set of twin pipes if you are REALLY worried about power, those 600 twins can be real tempermental with pipes though. Not too good on gas either 
I think powerinc made a set for those back in the day, might be a little hard to find. Anything done with clutching yet? There is a lot to be gained there.
I think powerinc made a set for those back in the day, might be a little hard to find. Anything done with clutching yet? There is a lot to be gained there.
I thought Sled posted last winter that it helped the 5 and 600 twins too. Look in the tech section. Maxdlx
VmaxSx600
New member
Yea i would love to get a pipe for it but i dont wanna spend a ton of money on it... but the reed notch wont work on a twin eh? huh well do you think my sled could take a 2002 600 Classic polaris? and a 2000 500 xc sp?
VmaxSx600
New member
that polaris has electric start and reverse so its a heavy bitch and its got a m10 so thats a downside for the topspeed on that
VmaxSx600
New member
Im thinkin bout droppin 1 tooth on my gears cuz all i ride is trails and quick stuff i want my sled to be snappy on the trails and have excellent acceleration... going top end isnt really my thing
I've got a boost bottle,reed spacers,VForce reeds and then geared down. My sled's throttle response is great now. I've gotten away from every twin I've raced so far. I have a triple though. Make sure your cables are adjusted correctly, also. You would be suprised how they get out of whack.
yamaholic22
Active member
yea it takes A LOT of tuning to get those 600 twins running as good as a 600 triple