Topica Loopframe_Guzzi Archive


Subject: Re: One Cylinder Firing

Author: andy hill

Date: Sep 19, 2001, 12:12 AM

Post ID: 1708293699


well, barry, i've seen plugs that fire great, except under pressure- that
may be your problem. if you're really sceptical [& it seems you are], then
get a new coil [3ohms internal resistance], new solid core wires, and new
plugs [what are they? n6eh's?] shouldn't cost ya over $20.00 or so. then, at
least, you'll know that you are solid, in this area!
andy
----- Original Message -----
From: "Barry Dikeman" <bar-@matiacontractors.com>
To: "Loopframe" <Loopfram-@topica.com>
Sent: Tuesday, September 18, 2001 11:51 AM
Subject: One Cylinder Firing


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Hi All,
I have a 1973 Eldorado with about 30K on the clock that has recently started
to annoy me! I hadn't run it for several weeks when I went to fire it up
last weekend, and noticed the following problem:
It cranked over several times and came to life on both cylinders for maybe
30 seconds before the left cylinder cut out completely. In it's cold state,
the right cylinder alone would not sustain unless I kept the gas to it. I
pulled the plug... wet with gas by now, dried it, gapped it and cranked it
outside the cylinder... spark...not the strongest I have seen but true blue.
I screwed the plug back in and cranked some more.. nothing! Pulled the
plug, again wet with gas... cranked it to check for spark... none. Pulled
the coil wire @ the distrib. cranked it... spark! Replaced cap and
rotor... nothing. Looked up under frame at coil and noticed that PO had
slid the coil unit too far forward in its mount causing the coil wire to be
bent/kinked in a hairpin turn back down to the distrib. Removed tank,
repositioned coil, replaced wire, tested for spark (Yes!) replaced tank,
cranked and fire in both holes! Problem solved ... or so I thought.

Several days (and 50 miles) later, I went out to the garage to begin another
ride and... repeat first part of experience in sentences above! No fire in
left hole! Again, tested for spark @ all points of distribution system good
except for left side seemed flakey/intermittent. Replaced left plug with
the crummy old Champion that it came with when I bought it and after a few
lifeless cranks I saw a spark, screwed in the plug and it ran!

I don't really feel comfortable riding this bike anywhere but around town
until I definitively solve this. Any insight out there?

Thanks,
Barry

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