Quote:
Originally Posted by maverick9611
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.
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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
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?
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Please answer these questions, would help narrow down possible areas needing testing.