Topica Loopframe_Guzzi Archive


Subject: RE: New to group... misc questions

Author: Keith Ruff

Date: Jun 13, 2001, 1:00 PM

Post ID: 1707104129


Perhaps a carb problem? High idle jets partially clogged? Any dirt in
the fuel lines that may be getting into the carbs and clogging it up?
How is the inside of the gas tank? I have had an occasional miss at
high RPM's and am attributing it to bad gas that had sat in the tank for
9 months.

Keith Ruff
71 Police Amabassador - NJ



Barry Dikeman wrote:
 Hi,
First let me introduce myself... my name is Barry and I live in
Bellingham,
WA. and ride a 1973 Eldorado (civilian model). Have been lurking for a
while... gleaning info.
I have a couple of questions/problems and hope that some of you may have
answers or suggestions.
My bike will randomly have a miss or backfire problem at RPM's over
4000.
The scenario is as follows: The engine will roll right up to 4000RPM
just
as strong as can be but when reaching this point, it acts sort of like a
boat engine that has "loaded-up" after idling and trolling for an hour.
It
really sounds and feels like there is too much fuel and not enough spark
the
engine hesitates and grumbles and backfires. This doesn't happen on
every
ride, but when it does, it is consistent. Other days, I can take the
bike
out and it runs right up to 5500-6000RPM smoothly and decelerates
without
backfire.
I have replaced the cap and rotor (rotor was cracked) and the plug caps
and
wires. I haven't replaced the condenser yet... because I thought a weak
condenser should be consistently weak. It ran fine for weeks with no
sign
of this problem and then the problem re-appeared last week. The only
common
thing I can deduce is that the problem occurs when the engine oil is
filled
up to the top mark on the stick (I measure it by dipping it back in
rather
than screwing in and then unscrewing). A local Guzzi mechanic laughed
when
I suggested this as the culprit. However, I changed the oil yesterday
and
filled it back up to about an eight of an inch below high mark and the
bike
runs fine!!??!
Any ideas?
Thanks,
Barry Dikeman
73 Eldo

Entire thread: