YFZ 450 carb. trouble?

jerry-zufall,
Who was this message to?  
Heres my toys
YFZ450 "06" jet kit, zip tie mod, cam mod, sold
Raptor 350 "06" stock, sold
Predator 90 "06" stock, sold

Sorry it was supposed to go to JDAM777 . New to the site, sorry.  

I have a 2007 yfz 450 gyt-r and the baffle removed .....when riding when i hit full throttle but i still got gear left it cuts out and pop bad and i wanted to know if anyone else had this problem ....also when u look down in the exhaust is the packing and stuff supposed to be off center or is it supposed 2 be straight?  

either you are too lean at the jets, or you are too lean at the needle.  try moving the clip one or two grooves down. if no change, then do a plug chop  
Keep it RUBBER SIDE DOWN!!

I have a 06' YFZ 450 that is not getting fuel into the Carb... Any ideas?  Jets are clean, tank is clean, fuel flows from the tank but does not end up in the bowl.  

Help.  

pull the bowl off and check the float and the float needle. Sounds like the needle is stuck.  
Heres my toys
YFZ450 "06" jet kit, zip tie mod, cam mod, sold
Raptor 350 "06" stock, sold
Predator 90 "06" stock, sold

after working on my carb I had the throttle cable out of adjustment and the carb switch was out of adj.had to barely open throttle to get it to crank adj. cable to get both switches to ohm in the open pos. works fine.  

I have posted a video on YouTube showing you the process of doing the
Zip Tie mod that fixes the bog issue.

Here is the link
http://www.youtube.com/watch?v=tzsBrNhX52g

if you have any questions message me on YouTube or leave a comment
on the video.

Also if the video was helpfull or you just liked the video please rate it by clicking on the stars.

I hope this helps  

Wolf1, Thank You for your expertise. I just bought a 07 YFZ450 and rode it for the first time yesterday, I experienced the exact same thing that Brayden8er started this thread with. I was worried since I bought this quad used that I might have just bought a big problem but after reading this thread I think I can get it straightened out easily. Thank You for all your input on here! and Thank Goodness for forums and the internet!  

Well after rereading this thread and looking closer at my 450 I see there is no mixture screw, there is an adjustment behind the TPS but it just seems to control idle. When I throttle it from idle to wot it bogs like it's getting too much fuel, I removed the air filter but no change. I don't know if it's had jets changed or not being I bought it used. If anyone has any suggestions on tuning this carb I would appreciate it. 2007 YFZ 450 SE, HMF Bill Ballance exhaust, I don't see any baffle in it and don't know if it ever had one. Thanks  

The bottom of the carb there is a adjustment screw. They are capped from the factory. The bog can be fixed with the zip tie mod, most of it.  
Heres my toys
YFZ450 "06" jet kit, zip tie mod, cam mod, sold
Raptor 350 "06" stock, sold
Predator 90 "06" stock, sold

i have a 08 yfz450 and i am getting a bog everytime i gas hard off idle i have read about the zip tie mod will this correct it or no i am really frustrated with it  

I was reading alot about the bog on the YFZ450, from idle to full throttle the bike will fall on its face.

I removed the cover on the carb (right side) where the throttle cable goes in and tied the ac pump linkage together with wire (called the zip tie mod). This keeps the link together when you stab the throttle.

I first watched the link, it stayed put while the throttle wheel went to full fuel. About 5-10 seconds later the pump link caught up.

After the mod dailed the mix screw to 1 1/4 and I can hit full throttle with excellent response.

I think all of the 450 need this or maybe R&D leak Jet. Research the R&D acc pump cover, it has a heavier spring an adjustable leak jet. Most of the 450 can be fixed with the zip tie.

Good Luck  
Heres my toys
YFZ450 "06" jet kit, zip tie mod, cam mod, sold
Raptor 350 "06" stock, sold
Predator 90 "06" stock, sold