Hello everyone,
Ive read incessantly about what kind of ignition timing problems are possible due to issues with the ECT sensor. I haven't found what im looking for so I'll ask here. Essentially, Im trying to figure out why my Valk runs like crap under 3k rpm and then beautifully above that.
Symptoms:
- Low on power below 3k, sounds like maybe its missing or something like that - generally sloppy and unrewarding and doesn't sound very healthy. But the moment it gets past 3k, everything gets much better.
- I get the intermittent temp light flashes all the time - it even comes on riding down the highway in 60 degree weather. However, teltru oil temp gauge never reads above 210-215.
- I get about 28 mpgs (not so gentle with the throttle, cruising between 70 and 90 doing pulls etc.)
Possible relevant info:
- Cobra 6 into 6 (Stock air filter, 38 slows and 100 mains w a couple of shims under the needles).
- Carbs are clean as a whistle! I've dismantled them allllll the way down - replaced jets, floats, float valves, the works. All passages clean, all clamps are tight. Carbs are synced with digisync and pilots were set using a gunson color-tune.
- Going to rebuild the petcock next. It does not hold a vacuum and maybe its causing a lean condition in the cylinder its hooked up to under lower vacuum conditions? Idk.
- Compression is good across the board.
- I once hooked the battery up backwards (yes, im that dumb
). The main fuse blew but the bike seemed to be fine other than that.
However, I would like to start doing tests on the ignition system. The bike runs, so I doubt that it would be something like a completely faulty ICM. I may get a timing light to see what's going on.
Anyone have any other ideas as to what to investigate next?
I am somewhere between an intermediate and idiot mechanic. Any ideas appreciated! TIA
