YZ125 cutiing out?

atrdrvr7
Posts
426
Joined
1/15/2013
Location
Houston, TX US
5/18/2017 8:00am
Any ideas on this issue. I have changed nothing on the bike. The bike sat for a while (4 months) but I always drain the carb. The jetting is the same I have run the past 2 years with no issue.

Took it out riding yesterday and it was cutting out on the face of some jumps. It didn't completely die just kind of a deep bog. Enough to almost make me wad it up on a big table.

It runs fine at idle in the pits. It had a fresh air filter. I thought maybe it was a plug. Changed the plug but has the same issue. It seemed to only do it on jumps with a whoop section or a lot of accel bumps prior to the face. If the jump had a smooth run to it the bike had no issue. Any ideas?
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Paw Paw 271
Posts
3640
Joined
4/3/2013
Location
Benton, LA US
5/18/2017 8:57am
Check your float height and your jets are clean.
Also be sure your power valves are clean.

Paw Paw
atrdrvr7
Posts
426
Joined
1/15/2013
Location
Houston, TX US
5/18/2017 9:52am
Check your float height and your jets are clean.
Also be sure your power valves are clean.

Paw Paw
Is there a way to check the power valves without pulling the motor? Looks like a pita to pull that front cover.
Bruce372
Posts
6341
Joined
4/1/2008
Location
US
5/18/2017 1:05pm
Check the vent hose on the gas cap
atrdrvr7
Posts
426
Joined
1/15/2013
Location
Houston, TX US
5/18/2017 1:25pm
Bruce372 wrote:
Check the vent hose on the gas cap
Funny you mention that. It did pop off early during the ride at some. I put it back and it still continued to bog.

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