Posts
30
Joined
3/14/2020
Location
West Palm Beach, FL
US
navyslideby
3/14/2020 7:13pm
3/14/2020 7:13pm
Edited Date/Time
3/29/2020 6:11am
Ok so I'm at a loss......
I purchased a 2001 Cr250 a few months ago and I feel like all I do is work on it. Day 1 it had no top end. I think the previous owner misaligned the fork. Then I got a surge and revving when I was riding and let off the throttle. I rebuilt the carb, rejet the carb, swapped the carb and rebuilt and rejet the new carb to no avail. I then did a leak down test and it came back complete crap. I tore the motor apart, split the cases, replaced bearings and replaced all of the seals and gaskets in the motor... got it back together tonight, jet the Air striker to 178 main 50 pilot needle 3rd slot, air screw 1.5 out and tested it. (Edit Bike has FMF Gold series pipe, FMF turbinecore, V-force 3 reeds and I'm at sea level)
On choke, it revved to the moon, turned choke off and on idle it died. Went to 1 turn out on air screw and it would idle, would rev with only a small hesitation if I whacked it hard, but as soon as I try to go ride it 2 seconds into attempting to accelerate it dies. Starts back up 1st kick, then dies as soon as I try to accelerate again..... please keep me from blowing this thing up with some C4.......
I purchased a 2001 Cr250 a few months ago and I feel like all I do is work on it. Day 1 it had no top end. I think the previous owner misaligned the fork. Then I got a surge and revving when I was riding and let off the throttle. I rebuilt the carb, rejet the carb, swapped the carb and rebuilt and rejet the new carb to no avail. I then did a leak down test and it came back complete crap. I tore the motor apart, split the cases, replaced bearings and replaced all of the seals and gaskets in the motor... got it back together tonight, jet the Air striker to 178 main 50 pilot needle 3rd slot, air screw 1.5 out and tested it. (Edit Bike has FMF Gold series pipe, FMF turbinecore, V-force 3 reeds and I'm at sea level)
On choke, it revved to the moon, turned choke off and on idle it died. Went to 1 turn out on air screw and it would idle, would rev with only a small hesitation if I whacked it hard, but as soon as I try to go ride it 2 seconds into attempting to accelerate it dies. Starts back up 1st kick, then dies as soon as I try to accelerate again..... please keep me from blowing this thing up with some C4.......
I have a Pro Circuit pipe and V-Force reed’s.
Elevation 1500-3000
When I had my air leak, I ran jet settings from leaner than this to richer than this and all of them would at least let me ride the bike.... I've never experienced this dying out before...
Is the pilot jet 100% clean?
Did you do another leak test after you did the engine work? You may still have a leak issue.
Long shot issues to review...
Bad spark plug and ignition coil.
Paw Paw
The Shop
It sounds like the lower part of the PV linkage is off a tooth.
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