Powder Coating Service Austin Texas
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general symptoms of a 2 stroke timing being out of whack?
What are the general symptoms of a 2 cylinder 2 stroke motor's timing being way off?
i'm trying to figure out if my issues stem from my timing, or the piston rings.
It's really hard to explain this to people who haven't been keeping up with the issues i've had over the last few months, so i'll just address things as they come along.
the last few times i started the bike, it poured smoke from the right cyl only.
i mean POURED smoke; which could have been from the countless times i flooded the motor while working on it and trying to fire it up.
But in my opinion, it may have been that the piston rings were bad from sitting for 36 years.
last night i rode it around a little bit and tried to get up to "speed" (45mph or so) and it seemed like that was pretty much as fast as the bike wanted to go, but may have had a little more in it. it's supposed to top around 70-80 depending on various things.
the carbs have issues, apparently the electrical has issues, etc, but it's hard to diagnose things when every time i fix something, i get another issue popping up.
anyway, it backfired a few times when i would down shift to come to a stop, but nothing bad.
Today, i rode it around a little more and it ran fine. in fact it even idled like it was supposed to once it warmed up, but there's still somewhat of an off sound to the motor like something isn't quite in sync. i didn't try to go fast, just fast enough to test it out before making more tweaks, but in all, it ran fine aside from smoke that for whatever reason comes from the front of the motor, which may be oil that's burning off, or it may be a gasket seal in the heads or a leaky exhaust gasket.. i really don't know.. ALL of those things will cause errors.
I went to take it out a few minutes ago, and i couldn't get it to fire up at all.. it would run fine for a second, backfire and die. this repeated several times until i gave up and came here to get more opinions on the matter...
for the record, earlier today when i was riding it, it wasn't pouring smoke out of that cylinder. in fact it wasn't smoking much at all compared to past times.
what could it be now?
Once Paul Miller actually sends my carb kits i think i'm going to suck it up and have one of the local shops look at this bike. kind of tired of messing with it and i'd rather be riding it than screwing with it.
heh... ok... i figured out something weird and i don't know how to fix it per say..
2 cylinders. they are both getting spark at the same time..
cyl 1. big spark little spark big spark little spark
cyl 2. little spark big spark little spark big spark
This would definitely cause it to misfire and backfire...
Last edited by mitchberry; 10-23-2009 at 11:19 PM.