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Engine/EFI/Drivetrain Discuss engine, fuel injection, air intake, and drivetrain modifications here

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  #11 (permalink)  
Old 04-07-2009, 06:11 PM
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Mine seized in there as well, but not due to dirt. (moisture I think) It took some good soaking with carb & choke cleaner and wd-40. to break up the corrosion. I had to tap it loose to finally get it to move. What Shadey said, Plunger in all the way to the lip.


Four (4) '06 LTR450's, '07 CRF250R, '09 CRF150RB


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  #12 (permalink)  
Old 04-07-2009, 07:29 PM
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so when you take the choke cable off the throttle body the pluger should look just like the one in the 4th pic on the first page? thats where my buddies is stuck, we just cant figure out if it's stuck in choke position or not?



KTM 450SX: KTM FMF slip-on, Ohlins steering stabalizer
(SOLD!!!)2009 Green KFX450R: Nmotion 9inch, PC3, FCI/w Box, Houser +1 Stem, Engine Ice, AMSoil 0w-40, QuadTech Seat, IMS Nerfs,Foot Pegs, Heel Gaurds, CV4 Hoses, ITP Quadcross Pro MX

2006 D-Max LT3:PPE Xcellorator,PPE air box mod,MBRP 4in t/b,Rancho 4in lift,20's and 33's

(SOLD)2005 KFX400: Full Yoshimura RS-3,IMS pegs (kick-up),IMS heel guards,AC Nerfs,AC Swing/Skid,Pro Design Case Saver,K&N filter,K&N Powerlid, Maxxis I-Razr's f/r,EngineIce, Motorex Full Syn

(SOLD)2005 SRT-10

(SOLD) 2003 Z400: Yoshimura slip-on,Durablue Axle,Full Flight +2 A-Arms, Laker plastics,Trail Tech bars,Candy Green Powdercoated Frame,ITP Holeshots

(SOLD)2006 Rhino SE: Looney Tuned Duals, Billet intake,ScaryFast Powernow,ITP tire/wheels,OMF Rockers
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Old 04-07-2009, 07:42 PM
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Don't understand what pic you are talking about. I would get the plunger to move freely before putting it back together with the spring. that way you know for sure if it is fully closed.


Four (4) '06 LTR450's, '07 CRF250R, '09 CRF150RB


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Old 04-07-2009, 08:15 PM
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This is the pic I was reffering to it was in another thread, is this plunger in the "choke" position or "run" position?



KTM 450SX: KTM FMF slip-on, Ohlins steering stabalizer
(SOLD!!!)2009 Green KFX450R: Nmotion 9inch, PC3, FCI/w Box, Houser +1 Stem, Engine Ice, AMSoil 0w-40, QuadTech Seat, IMS Nerfs,Foot Pegs, Heel Gaurds, CV4 Hoses, ITP Quadcross Pro MX

2006 D-Max LT3:PPE Xcellorator,PPE air box mod,MBRP 4in t/b,Rancho 4in lift,20's and 33's

(SOLD)2005 KFX400: Full Yoshimura RS-3,IMS pegs (kick-up),IMS heel guards,AC Nerfs,AC Swing/Skid,Pro Design Case Saver,K&N filter,K&N Powerlid, Maxxis I-Razr's f/r,EngineIce, Motorex Full Syn

(SOLD)2005 SRT-10

(SOLD) 2003 Z400: Yoshimura slip-on,Durablue Axle,Full Flight +2 A-Arms, Laker plastics,Trail Tech bars,Candy Green Powdercoated Frame,ITP Holeshots

(SOLD)2006 Rhino SE: Looney Tuned Duals, Billet intake,ScaryFast Powernow,ITP tire/wheels,OMF Rockers
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Old 04-08-2009, 04:21 PM
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how to make ur own throttle body nut i know people have done it .......... any one care to make a quick post!?:P much appricated


2006 ltr 450
wesico piston(470cc)
wesico valves
white frame
white A-arms
white subframe
white plastics
rath +1 stem
white renthal fat bars
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Old 04-08-2009, 05:02 PM
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Quote: Originally Posted by DirtymaxDiesel View Post
This is the pic I was reffering to it was in another thread, is this plunger in the "choke" position or "run" position?
If that plunger moves freely and you push it fully into the bore (which is what the spring does when fully assembled) that would be the run position, as you Idle it up with the idle advance lever, it will pull that plunger out slightly, opening the bypass air port.


Four (4) '06 LTR450's, '07 CRF250R, '09 CRF150RB


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Old 04-09-2009, 08:50 AM
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this is confusing


2007 LT-R450 -
500cc BB kit @ 12.5:1 - CP Piston
+2 Ti Valves w/Newen Countour Valve Job
HD Springs
Williams Performance custom grind race Cams (both)
Port/Polish by Williams Performance
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Old 04-09-2009, 09:26 AM
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Quote: Originally Posted by jonah View Post
how to make ur own throttle body nut i know people have done it .......... any one care to make a quick post!?:P much appricated
the pic posted is from my ltr race prep thread in the pics/video's section. should be easy to find. I show a pic of my block off I made. I used atp's method.

EDIT...heres the pic. I used a m6 screw about a half inch long, and tapped the plastic nut. then I put epoxy on the screw threads, and put the screw in. worked real good, because then when you install the whole thing, you can use a long philips screw driver instead of trying to get your hand in there.



2006 LTR 450...Sold!

2003 z400
.....Sold!

2004 z250
.....the gf's ride...Sold!


Last edited by Fakie; 04-09-2009 at 09:29 AM.
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Old 04-10-2009, 05:38 PM
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its so easy, just take spring and plunger off the end of the cable and stick it back in the hol it came out of. stick the yoshi nut on there and screw it down.
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Old 04-10-2009, 08:19 PM
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just deleted my choke today and used the stock plastic nut that is on the bike and just put a Chit load of silicone in the hole and made sure it adheared to the spring a bit so it will not go anywhere over time.


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