stiff throttle

[Hondarider427]

I have a 2003 400ex and was woundering if anyone else has a really stiff throttle. Is their any way to fix this problem or what is wrong with it. any input would be nice

[2muchquad]

make sure your cable is lubed GOOD,dont use wd40 as it is water based,it wont last,i like to use maxima chain/cable lube,it seems to work pretty good.:) if that doesnt help try those lever extensions,otherwise ride more often to build up your thumb muscles..:)

[chucked]

Ive used cable lubes... they ease it a little but not for long, replacing the throttle cable is the best move. If you know how, take apart the carb and clean up all the moving parts, I polished the drum and many other parts in it and mine was alot easier.

[FoxRacing81]

Well, on my 250r, I put a 250x thumb throttle on it (same as 400) and I just left the little spring that goes inside the thumb throttle body. Mine was so easy to push after that. and I don't think it hurts it either...

-Mx

[DaleJrFan]

take the plate off the top of the throttle and there is a little gold colored spring in there, take a pair of needle nose pliars and rip it out. you wont feel any resistance change of the throttle cable but when you go ride, you wont get the sore thumb. i just did this at the dunes and i was shocked the difference.

[Hondarider427]

thanks for the input guys
It helped a lot