I'm about to give up, all the forums searching can't get me any further. Time to ask for help.
A lot of work has been done to this bike, most of it before it ended up in my hands, very much a learning experience.
(I exchanged some messages with Caveman but I think I exhausted the list of his suggestions)
Problem: Takes a lot of effort to start 4-5 times than it often dies time or two while trying to keep up RPM.
One its hot after letting it run or after a ride, starts instantly.
I just don’t trust this bike to go more than few blocks around house I would love to get it mechanically solid so I can move on, with all the other plans I have for it.
There is fair amount of noise around the back of the engine, I’m 70% sure its from area of the exhaust valve. Did not look inside valve cover, this might be next task.
I also hear something from alternator area, not big deal but I got set of monkey nuts ready to have a look.
Cold Start: (I realized I don’t have good video, will add one when its actually cold)
Video of start after it ran for 1 minute, took like 6 attempts this morning:
Smoke after cold start and idling for a minute or so:
Warm Start:
What I did so far:
- Tank flushed, there was some crap there, (had some fuel I did not trust, spent one winter outdoors without stabilizer).
- Replaced filter, cleaned pump basked.
- All fuel lines replaced, even installed quick disconnect on lines for easy tank removal.
- Pressure tested on rail, 35 PSI video:
- Tested injectors for pattern, looks good, replaced anyways with 4 jet ones. – old ones looked clean.
- Wire plugs replaced with new ones.
- Compression tested 110, 105, 102, 110.
- Plugs replaced with NGK, old ones looked decent, still have them.
- HAL sensors, I found noted wires in the casing, almost looks like wires were pinched in the center before (PIC). I considered soldering new wires, but it looks very close to sensor itself. Bit the bullet, replaced with new one.
https://photos.app.goo.gl/Y2bCnfFD1Fu8bchG8- All plugs tested for spark; they look OK for my inexperienced eye. (used old Bosh plugs)
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- New battery, alternator replaced not long ago, charges well. (few months scratching my head not knowing about having to have charging light or resistor).
- Air sensors, tested, got new once just in case. Air box has been removed, tried to placing it in various places including air intakes, no change.
- Coolant sensor, tested, got new one. Tried to start with sensor not submerged (did not see need to drain radiator). no change, also tested wire to ECU.
- Got second ECU from ebay, same model number matching, runs identical on both.
- Does not look like I lose oil, changed about a year ago.
- I don’t see anything floating on top of oil in inspection window.
- I’m not expert on smelling exhaust but I’m quite sure its gasoline smoke.
I’m quite sure I’m forgetting few things I did but I’m seriously not sure where to go from here. I’m determined and I love this bike but this is getting to the point that I’m ready to give up.
What next?
Thank you in advance.
