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ajs model 30, firing on one cylinder
Posted: Wed Aug 17, 2011 12:00 am
by hodgson
runs and sparks well on near side, but misses with intermitten spark on off side,
ajs model 30, firing on one cylinder
Posted: Wed Aug 17, 2011 11:18 pm
by wilko
Do you have the leads running inside the manifold? Maybe one of them is tracking to earth intermittently?Check it out in the dark while it's running.
ajs model 30, firing on one cylinder
Posted: Sun Sep 11, 2011 6:20 pm
by Samuel
Inlet port obstruction on one side
It only needs a small ridge or part of a gasket sticking out into the airflow to ruin the fuel atomisation for that cylinder ...
ajs model 30, firing on one cylinder
Posted: Tue Sep 13, 2011 2:28 pm
by 1608
Yes Sam, there's an interesting piece on Inlet Port Obstruction somewhere in Tech Articles.
ajs model 30, firing on one cylinder
Posted: Tue Sep 13, 2011 9:35 pm
by wilko
The last inlet obstruction i witnessed was on a Matchy twin with rag left inside it! Took a while to diagnose that one until we noticed some scraps of material down the plug hole! He forgot to remove it when he bolted the manifold on!
ajs model 30, firing on one cylinder
Posted: Mon Oct 24, 2011 4:25 pm
by OLD SHEP
I used to have this problem on my Model 30. I found the trick is to adjust the advance/retard lever and then the other cylinder chimed in. After that, I just left the lever in the position it liked & all was well.Edited by - OLD SHEP on 24 Oct 2011 3:27:23 PM
ajs model 30, firing on one cylinder
Posted: Mon Oct 24, 2011 11:31 pm
by wilko
Was it resolved Chris?