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Discussion Starter · #1 ·
Hey guys was wondering how to make better throttle response for my
fourtrax its carbureted of course
soon as your fully open the throttle its boggy for 2 seconds
then it will have full response after that
Any chance it can make it really responsive thanks!
not looking for hard core engine mods just some small tweaks
 

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Disassemble the carb and set everything up on it like the service manual recommends. Follow it word-for-word.

Also check the carb boot for cracks or poor sealing at each end. Go through your air box & air cleaner too.

Once you get everything right on the motor there will be no more bogging.
 

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Just to add, DONT use any Chinese or unheard of brand parts, they really won't work, you'll just waste a little cash. OEM or known good brands only are proven time and time again to work, even though they are priced slightly higher.
 

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A bit of hesitation is inherent in the design. It's hard to get instant throttle response with a carb, but it shouldn't be literally 2 seconds either lol. A well tuned carb will have minimal hesitation, sport carbs have an accelerator pump on them to squirt extra fuel when you snap the throttle, helping throttle response. Now, you CAN with some mods switch to a 300EX carb, or you can try and improve on what you have. Cutting a few coils off the carb spring can help, too many can hurt too though and once they are cut you can't add them back. Mind you it's only $7 for a new spring. Can also drill the empty hole in the slide a bit bigger, I haven't looked at one out of a 300 lately, probably go 1/8" or so I think that's the norm. Just some ideas for you, of course do your research before committing to anything don't just take my word for it.
 
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