I adjusted my valves a couple weeks ago. When I ride my raptor now, it seems different. It feels as if the Raptor gained alot of low end and lost some top end. Is this possible? It will now pop a wheelie in 3rd gear unassisted. It did not use to do this. But the top end seems like it doesn't go as fast. Throttle response is fine and smooth and everything works great other than the above statement. Is this just my imagination? Thanks yall.

 

yes, from my automobile hotrodding days the closer the valve adjustment tolerence provides you better bottom end torque with some loss at the top end of rpm range. The wider the valve tolerence the opposite is true.

 

It is pretty much a general concensus that the intakes on all Raptors tighten up over time, right. So should you adjust them to the widest limit and let them tighten up.

The last time I adjusted my valves I gained enough power to notice it and they weren't that far out of spec.

 

hey Ward660R, i think ur siggy is messed up, why would u put a 440 kit on a raptor? and that wouldnt be big bore, that would be micro bore kit.

 

I'm pretty sure he is joking.

Hey Ward...how do those carbon fiber reeds work, my dad was thinking about using them on his raptor.. [img]i/expressions/face-icon-small-happy.gif[/img][img]i/expressions/face-icon-small-wink.gif[/img] !!!!! LOL

 

Eh, the rest didnt click, just the 440 caught my eye, didnt notice the other impossible stuff.

 

I just curious why is everyone adjusting there valves on there raptors?
I could see doing it when its about 5 years old, and was rode to and from work everyday, but its quad a new quad! I dont think street bikes adjust there valves that much and are rode all the time.

 

First off, thanks for the replies. Secondly, I have an update on my valves. Well, I don't know what the heck happened, but the raptor is a beast all over now lol. She has the extra lowend I spoke of, but her top end is back. I topped her out at 78mph Saturday, not bad at all IMO. She pulled HARD the whole way through. As far as adjusting the valves on the bikes, I had to get my adjusted at 500 miles per Suzuki's reccomendations (GSX-R 600).