THE BOG IS GONE!!! THE BOG IS GONE!!!!!!!!


6 replies to this topic
  • Pothole

Posted November 04, 2004 - 03:30 PM

#1

After many weeks of trying to dial the bog outta the '99 YZ400, it's finally GONE!!!! I can't believe how this bike runs now, it's like my old RM250. I wick the throttle open instantly and the bike just lights off the line, no hesitation at all. BIG THANKS must go out to Yamakaze, Taffy, JD, and all the others, but especially Yamakaze, whom contributed to the solution! TT Rules.

The only minor hesitation I have now is when I wick the throttle going slow in 3rd or 4th gear, but it's a small hesitation. I'm going to install the Starting Line Products Power Pak dealio tommorrow and see how that works.

'99 YZ400, WR426 Flywheel & Stator
160MAJ/155MJ, OBEKN-3, 40PJ/75PAS, FS 2 turns out.

  • Idaho_Wolverine

Posted November 04, 2004 - 03:37 PM

#2

Sounds good. That would bother me too if I had it.
So where do you ride up there?

  • SXP

Posted November 04, 2004 - 03:49 PM

#3

So.....don't leave us hanging :cry: What the heck did you do to eliminate it? Details, details details please. Thanks. :cry:.

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

Posted November 04, 2004 - 03:56 PM

#4

oh, sorry. I rejetted my bike from the stock jetting to a:

160 main air jet
155 main jet
OBEKN needle on clip 3
40 Pilot jet (38 pilot in the mail)
75 Pilot air screw (60 PAS w/ the 38 PJ)

I did the Taffy collar mod and set it for about 1.5 seconds
and set the Kouba fuel screw out about 2 turns. Not sure where I'm at on the fuel screw at the moment but I'll check it tonight.

  • Pothole

Posted November 04, 2004 - 03:58 PM

#5

Sounds good. That would bother me too if I had it.
So where do you ride up there?


Hey, we go out to Blacks Creek quite a bit, that's a great riding area. For quick rides it's the boise front foothills, 5 minutes from my garage.

  • rush66

Posted November 04, 2004 - 04:29 PM

#6

good to hear you got the bog out :cry: . the old fcr's are notorious for it

  • notuagn

Posted November 07, 2004 - 05:12 PM

#7

oh, sorry. I rejetted my bike from the stock jetting to a:

160 main air jet
155 main jet
OBEKN needle on clip 3
40 Pilot jet (38 pilot in the mail)
75 Pilot air screw (60 PAS w/ the 38 PJ)

I did the Taffy collar mod and set it for about 1.5 seconds
and set the Kouba fuel screw out about 2 turns. Not sure where I'm at on the fuel screw at the moment but I'll check it tonight.



Someday I hope to understand what you just said. :cry:





Related Content

Forums
Photo

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
Forums
Photo

YZ450F 03 Sparks driving me crazy by SirAttard


Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • 5 replies
Forums
Photo

2016 YZ450 by CaptainKnobby


Dirt Bike   Dirt Bike Technical Forums   Suspension
  • Hot  59 replies
Forums
Photo

Megabomb Fitment by 288yz450


Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • 1 reply
Forums
Photo

First Hare scramble tips by dhend8


Dirt Bike   General Dirt Bike Forums   General Dirt Bike Discussion
  • Hot  33 replies
 
x

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.