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thumb throttle
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Posted by: redrider9045

hey i race a 300ex and everytime i get on the track about 4 laps into the race my thumb hurts really bad and i can barley move it is there anything i can do about it i used to have the same problem when i started racing with my clutch but i use one of those stress balls for a while and it was really easy to pull in is there anything i can do but i wont get a twist throttle

Posted by: Braff1

Try to use the thumb lever from a trx 90. It is about 3/4 longer and will give you some xtra leverage.

Posted by: redrider9045

hey ive seen some throttle extenders would those work

Posted by: Lil - Braff

RedRider... I would really suggest to get the trx 90 throttle. It makes a world of difference. That is what I have on my 300 and when mine had to go to the shop I had to race a stock 300 w/o it. My thumb started hurting also but when we put that throttle on the 300 that I was racing at the time I didn't have a problem with it. So that just kinda goes to show that really does work.

Posted by: redrider9045

hey umm were did u get the 90 thumb throttle also what part of it the whole thing execpt the throttle cable or what

Posted by: Braff1

you can get the lever from your local honda dealer. All you need is the lever itself cost about $20.00 and takes about 10 minutes to change out.

Posted by: redrider9045

so just the part you push with your thump will do right also how did u put it in

Posted by: Braff1

just the part you push is all you need

Posted by: redrider9045

how did you put yours in

Posted by: Braff1

remove the 3 screws on the top of the throttle body. Undo the locking tab and remove the nut to the top of the lever and remove. becareful when you slide the new one up in that the return spring is in the correct position, put the locking nut back on and fold the lockng tab back up. replace the 3 screws. adjust throttle adjuster screw.

Posted by: balls2da-wall

Would that work on a 400ex?

Posted by: redrider9045

hey i dont know if it will work with a 400ex but it should im either gonna get that or a throttle extender

Posted by: Braff1

Will work on 300ex, 400ex and 250ex

Posted by: balls2da-wall

Alright so a 2004 Sport Traxs 90 thumb lever will fit on a 2003 400ex...cause thats what I just ordered

Posted by: Braff1

yep that is it.