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Old May 24th, 2020, 03:30 PM   #110
DannoXYZ
ninjette.org certified postwhore
 
Name: AKA JacRyann
Location: Mesa, AZ
Join Date: Dec 2011

Motorcycle(s): CB125T CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR SFV650 VFR750F R1M ST1300PA Valkyrie-F6C

Posts: A lot.
MOTY - 2018, MOTM - Nov '17
Quote:
Originally Posted by maverick9611 View Post
i ran across a thread where a ninja 250 had the exact problem i was having. a dead cylinder. remember problem started after i hit those deep potholes at night in carolina. it got progressively worse and sometimes disappear.
Yes, this is primary clue. Sporadic and inconsistent change in behavior is a sign of something. We need to focus on something that can change in an instant and back again... Dead-cylinder doesn't fit your symptoms as it would be dead all time, not improve and die again. Besides, your compression-test shows both cylinders are in good condition.

Quote:
Originally Posted by DannoXYZ View Post
Need some clarification on your symptoms:

1. Cuts out in mid-range under ALL loads? If you use 25% throttle or less, does it rev past mid-range?

2. Never makes it past mid-range under ALL throttle-openings? In neutral can you rev past mid-range with just 10-15% throttle?
Please answer these questions, would help narrow down possible areas needing testing.
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