Taffy mod on 99YZ400F carb

2 replies to this topic
  • kcsteck

Posted October 24, 2006 - 11:15 AM


I am using old 99YZ400 FCR on my quad .Ok I had AP squirt that was way to long so I did the Taffy mod and got it a lot shorter squirt.My question now is what else am i supposed to do to get rid of the bog? Do I wire the AP arm to the linkage? or go up or down on Pilot jet? im using 45 pilot,165 main,Needle on 2nd clip? runs real good just want that bog gone when you whick it while rollin.I see alot of info on the newer carbs for the Bog but not the older ones? let me know if ya got any tips.

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • DPW

Posted October 25, 2006 - 06:04 AM


Have you already cleaned the accelerator pump?

  • grayracer513

Posted October 25, 2006 - 08:11 AM


I had AP squirt that was way to long ...

First thing to check is that the leak jet is clear.

What isn't obvious is whether this old YZ400 FCR in your quad is on an old YZ400 engine. If not, you may find that all bets are off, and you'll have to rejet the carb from scratch.

Related Content


James Stewart back on a YZ450F by YamaLink

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  47 replies

Yamaha YZ450F 2017 by Chris.GVS

Yamaha YZ450F 2017
  • - - - - -
  • 0 reviews

Snake pit oct 30th by The Anvil

Dirt Bike   Dirt Bike Regional Discussion   California
  • Hot  293 replies

Is it worth it? (Cam and High compression piston) by macgi77

Dirt Bike   Make / Model Specific   Honda   CRF 150/230 F/L
  • Hot  36 replies

Michigan Motocross Tires by 288yz450

Dirt Bike   Dirt Bike Regional Discussion   North
  • 1 reply

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.