250 2001 KX250 need help with part?

SRAD97750

Moderator
Staff member
Thats possibly a throttle position sensor, and looks as if it plug into the wiring harness to assist the CDI with timing in some way.
I am not sure if it's totally necesary, but most likely helps optimize either idle or wide open throttle.
-BIG DAN:thumb:

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SRAD97750

Moderator
Staff member
I would put the cover back on, the O-ring makes me think it could cause an air leak at the slide. Also, probably not a big deal at all.
The airboot being cracked would be cause for an inspection, airleaks downstream of the carb are a real pain.
-BIG DAN:thumb:
 
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