Subject: Re: One Cylinder Firing
Author: Ian Adkins
Date: Sep 18, 2001, 11:14 AM
Post ID: 1708285410
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Barry,
Be sure to check your fuel sources too. Maybe the carb is flooding due to a faulty float needle or is starving out due to blocked filter.
I remember once I had the right cylinder fail. The bike would run on choke but the left cyl was bad. If I turned the choke of the right cyl wouold backfire and not run right. Traced the problem to a bit of fluff in the right jet.
It is possible that you have a faulty plug wire? Easy enough to test with another one...or replace it. By the way...are you using the original spark plug boots?
Good luck and let us know what you learn.
Regards...Ian
-----Original Message-----
From: Barry Dikeman <bar-@matiacontractors.com>
To: Loopframe <Loopfram-@topica.com>
Date: September 18, 2001 11:51 AM
Subject: One Cylinder Firing
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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<DIV><FONT color=#000000 face=Courier>Barry,</FONT></DIV>
<DIV><FONT color=#000000 face=Courier></FONT> </DIV>
<DIV><FONT face=Courier>Be sure to check your fuel sources too. Maybe the carb
is flooding due to a faulty float needle or is starving out due to blocked
filter.</FONT></DIV>
<DIV><FONT face=Courier></FONT> </DIV>
<DIV><FONT face=Courier>I remember once I had the right cylinder fail. The bike
would run on choke but the left cyl was bad. If I turned the choke of the right
cyl wouold backfire and not run right. Traced the problem to a bit of fluff in
the right jet. </FONT></DIV>
<DIV><FONT face=Courier></FONT> </DIV>
<DIV><FONT face=Courier>It is possible that you have a faulty plug wire? Easy
enough to test with another one...or replace it. By the way...are you using the
original spark plug boots?</FONT></DIV>
<DIV><FONT face=Courier></FONT> </DIV>
<DIV><FONT face=Courier>Good luck and let us know what you learn.</FONT></DIV>
<DIV><FONT face=Courier></FONT> </DIV>
<DIV><FONT face=Courier>Regards...Ian</FONT></DIV>
<DIV><FONT face=Courier></FONT> </DIV>
<DIV> </DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #000000 solid 2px; MARGIN-LEFT: 5px; PADDING-LEFT: 5px">
<DIV><FONT face=Arial size=2><B>-----Original Message-----</B><BR><B>From:
</B>Barry Dikeman <<A
href="mailto:bar-@matiacontractors.com">bar-@matiacontractors.com</A>><BR><B>To:
</B>Loopframe <<A
href="mailto:Loopfram-@topica.com">Loopfram-@topica.com</A>><BR><B>Date:
</B>September 18, 2001 11:51 AM<BR><B>Subject: </B>One Cylinder
Firing<BR><BR></DIV></FONT>
<DIV><FONT face=Arial size=2><SPAN class=320593415-18092001>Hi
All,</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=320593415-18092001>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:</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=320593415-18092001>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.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=320593415-18092001></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=320593415-18092001>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!</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=320593415-18092001></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=320593415-18092001>I don't really
feel comfortable riding this bike anywhere but around town until I
definitively solve this. Any insight out there?</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=320593415-18092001></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN
class=320593415-18092001>Thanks,</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=320593415-18092001>Barry</SPAN></FONT></DIV><PRE> </PRE></BLOCKQUOTE>
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