Gentlemen, I have an update. Mikes sent a replacement ignition and if you remember the thing was a one kick bike running quite well, with a little minor carb tuning left when it suddenly quit. I installed the new ignition, triple checked all my wiring AGAIN and starting kicking. Nothing. I had constant, beautiful spark so I believe the ignition is working how it should, so far, Kick kick kick, all signs point to rich condition, out of the blue, won't start. Hit the chokes for fun and it starts, sounds terrible. I'm baffled. Will only run for 10 seconds or so with choke on, won't run otherwise. This tells me I'm actually too LEAN. Change pilot to one step richer, double check floats (24mm) VM34s, blow out all orifices. Acts even more rich. Won't start. Am I missing something here? Changing out to an ignition that works I was expecting it to start right up like it did before. Is it a coincidence that my brand new carbs screwed up somewhere along the way? This is truly screwing with my head and why I come to you here today.
I am at 6000 ft above sea level and this is the setup that was working great before the ignition shit the bed- VM34s- 12.5 pilots, 170 mains, 159 P-6 needle jet, needle 6F9 clipped on second notch, no air jets, not sure what the slide is, purchased carbs from TCBros. Mains still felt a little rich at this point and pilot a little lean but like i say, the thing ran 8/10.
While boggling my mind of what might've broke at a similar time of teh ignition going I checked the compression. Dry i got 90psi on both, wet I got 105 on both. Cam chain, valves, etc are all checked. I know there's a lot going on here, trying to give as much info as possible. Maybe my compression is finally low enough the thing doesn't want to run anymore...
I am at 6000 ft above sea level and this is the setup that was working great before the ignition shit the bed- VM34s- 12.5 pilots, 170 mains, 159 P-6 needle jet, needle 6F9 clipped on second notch, no air jets, not sure what the slide is, purchased carbs from TCBros. Mains still felt a little rich at this point and pilot a little lean but like i say, the thing ran 8/10.
While boggling my mind of what might've broke at a similar time of teh ignition going I checked the compression. Dry i got 90psi on both, wet I got 105 on both. Cam chain, valves, etc are all checked. I know there's a lot going on here, trying to give as much info as possible. Maybe my compression is finally low enough the thing doesn't want to run anymore...
So, quite a curious problem: going from easy to start, suddenly, doesn't happen from a jetting problem (only clogged carb), low compression doesn't happen suddenly - unless a burnt valve, then not evenly each cylinder - so, that brings us back to ignition and its power-supply. The ignition (some of it) has been switched. Timing verified? Now we're back to power supply (including wiring).
ohhh right, i remember now with the prime position thing, they dont have that. Not sure if these are vacuum or not? I though vm34s were NOT vacuum ? as opposed to a CV carb... i need to figure out how to upload a vid
