XR650L 2001 Throttle Hesitation


5 replies to this topic
  • MikeNYC

Posted August 03, 2004 - 08:32 AM

#1

Just installed a Big Gun Race Series pipe and head pipe. I also removed the emissions and the charcoal canister. When I give it immediate gas while going any speed, it hesitates before taking off. Any suggestions? Does removing the emissions really boost HP?

  • jlpskydive

Posted August 03, 2004 - 09:23 AM

#2

Does removing the emissions really boost HP?

Nope, just drops some weight and looks better. It also helps with the popping on decel. Have you re-jetted? You need to if you haven't, that will help with the throttle hesitation there are a bunch of carb things to do that make the bike run waaaaaay better. Do a search on this forum and you'll find a ton of advice on jetting the L.

  • xr650Lroostnya

Posted August 03, 2004 - 12:14 PM

#3

Yes i would definently rejet if I were you it makes a world of difference. Also if you havnt already switched to an aftermarket airfilter such as an UNI or Twin Air filter I would do that too it makes the bike run soooo much better also make lots more power. Also dont forget to take off the airbox snorkel.:thumbsup:

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  • XR650L_Dave

Posted August 04, 2004 - 06:25 AM

#4

Ditto the other replies, and while rejetting don't forget to shim the stock needle and drill the holes in the vacuum slide out. Makes a biiiig difference.

-Dave

  • uw153

Posted August 04, 2004 - 06:51 AM

#5

Ditto the other replies, and while rejetting don't forget to shim the stock needle and drill the holes in the vacuum slide out. Makes a biiiig difference.

-Dave


Couldn't say it better myself, you will notice very little difference with jetting. HUUUUGE difference after jetting. Use a 55 pilot, shim the needle with a .020 washer, and increase the main to a 158 or 160. Fuel screw at around 2.5 turns out to start and change that filter. You will be happy with the results. :thumbsup:

  • MikeNYC

Posted August 18, 2004 - 07:46 AM

#6

Thanks, will re-jet





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