NEED HELP WITH YZ250 NOW

jabudhibb
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jabudhibb
Edited Date/Time 11/9/2017 11:38pm
My 2001 yz250 dosent idle...i have a keihin pwk 38 carburetor. i have to keep reving it to keep it alive.... i can full throttle 1ST GEAR and it dosent even pick up and do a wheelie. ..my floats are leveled and my needle position is at 1st (top of needle) postion and a 178 main jet ... do i need smaller or larger jets? Or needles idk ..help me out i want my bike to be a regular 2 stroke again
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JWACK
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JWACK 11/8/2017 3:37pm
11/8/2017 3:37pm
Well.. Perhaps you need a Kickstarter that doesn't wear-out your boots. That may fix the issue.
mattyhamz2
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mattyhamz2 11/8/2017 3:51pm
11/8/2017 3:51pm
JWACK wrote:
Well.. Perhaps you need a Kickstarter that doesn't wear-out your boots. That may fix the issue.
lol!

Purple power band should help it. That's the best one.

The Shop

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rmoto003
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rmoto003 11/8/2017 3:54pm
11/8/2017 3:54pm
Sorry man, theres no way its going to be a regular 2 stroke again.

Youre going to have to accept it for who it is now.... But hey its 2017 and we need to be accepting of those who are different.
imoto34
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imoto34 11/8/2017 3:56pm
11/8/2017 3:56pm
How does she wheelie in 2nd gear?
reded
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reded 11/8/2017 4:26pm
11/8/2017 4:26pm
Remove carburetor. Remove float bowl. Remove main and pilot jets. Inspect jets for any accumulation of shit. After seeing that the pilot is plugged, remove said shit. Put back together in reverse order.
xr70
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xr70 11/8/2017 4:30pm
11/8/2017 4:30pm Edited Date/Time 11/8/2017 4:30pm
Make sure that the powerband is stil there , sometimes will get lose and fell out.
AZRider
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AZRider 11/8/2017 4:32pm
11/8/2017 4:32pm Edited Date/Time 11/8/2017 4:33pm
Replace the jets and go from there. I won't assume you have any mechanical knowledge whatsoever.

And see 2 posts above mine.
rmoto003
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rmoto003 11/8/2017 4:36pm
11/8/2017 4:36pm
reded wrote:
Remove carburetor. Remove float bowl. Remove main and pilot jets. Inspect jets for any accumulation of shit. After seeing that the pilot is plugged, remove said...
Remove carburetor. Remove float bowl. Remove main and pilot jets. Inspect jets for any accumulation of shit. After seeing that the pilot is plugged, remove said shit. Put back together in reverse order.
But if he puts it together in reverse order, wont bike bike only go backwards?
Underground 11/8/2017 4:44pm
11/8/2017 4:44pm
Rebuild the top end. Decarbon and clean your power valves. Blow out the massive dent in the pipe. Repack the muffler. Fit a BR8EGV. Put needle back in the centre clip and fit a 48 pilot. Clean and re-oil your air filter. Brapppp!

Pit Row

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agn5009
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agn5009 11/8/2017 6:30pm
11/8/2017 6:30pm
Change the oil filter bro. They tear easily and that causes loss of power in the first wheelie gear.
RandyS
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RandyS 11/8/2017 6:34pm
11/8/2017 6:34pm
agn5009 wrote:
Change the oil filter bro. They tear easily and that causes loss of power in the first wheelie gear.
Is the 450 one the same? If so I have a couple that I never used from my 01 YZ450F. I can make him a killer deal on them.
agn5009
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agn5009 11/8/2017 7:04pm
11/8/2017 7:04pm
agn5009 wrote:
Change the oil filter bro. They tear easily and that causes loss of power in the first wheelie gear.
RandyS wrote:
Is the 450 one the same? If so I have a couple that I never used from my 01 YZ450F. I can make him a killer...
Is the 450 one the same? If so I have a couple that I never used from my 01 YZ450F. I can make him a killer deal on them.
Yes, the 450f oil filters are exactly the same as the 250 2 strokes.
lumpy790
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lumpy790 11/8/2017 7:12pm
11/8/2017 7:12pm
lumpy790 wrote:
What fuel are you using?
jabudhibb wrote:
non ethanol 93
Pull the head and see how much damage there is from detonation. You must use Race gas in these YZs
RandyS
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RandyS 11/8/2017 7:23pm
11/8/2017 7:23pm
agn5009 wrote:
Change the oil filter bro. They tear easily and that causes loss of power in the first wheelie gear.
RandyS wrote:
Is the 450 one the same? If so I have a couple that I never used from my 01 YZ450F. I can make him a killer...
Is the 450 one the same? If so I have a couple that I never used from my 01 YZ450F. I can make him a killer deal on them.
agn5009 wrote:
Yes, the 450f oil filters are exactly the same as the 250 2 strokes.
That's what I thought but I wasn't sure, I didn't want to give any bad info so I wanted to double check.
project racer 11/8/2017 8:36pm
11/8/2017 8:36pm
Check the piston nuts. A metric crescent wrench is necessary to properly torque them.
mattyhamz2
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mattyhamz2 11/8/2017 8:55pm
11/8/2017 8:55pm
project racer wrote:
Check the piston nuts. A metric crescent wrench is necessary to properly torque them.
Can’t forget the muffler bearings and spark plug springs
sumdood
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sumdood 11/8/2017 10:16pm
11/8/2017 10:16pm
project racer wrote:
Check the piston nuts. A metric crescent wrench is necessary to properly torque them.
mattyhamz2 wrote:
Can’t forget the muffler bearings and spark plug springs
Don't listen to these guys Billy no idle. You just need to adjust the idler gear and pulley
MX Guy
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MX Guy 11/8/2017 11:30pm
11/8/2017 11:30pm
"i can full throttle 1ST GEAR and it dosent even pick up and do a wheelie."

I'd like to see this

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