Topica Loopframe_Guzzi Archive
 

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

Author: Barry Dikeman

Date: Jun 14, 2001, 8:30 AM

Post ID: 1707115050

Keith,
Thanks for the input... I bought this bike about a month ago (1,100
miles ago!) and had it shipped cross country. The tank was drained for
shipping and when it arrived I filled it with 1 gallon of gas and rode
it to a gas station to top it off. On the ride there (my first outing)
the problem reared its ugly head. So this could very well be the cause.
The bike has aftermarket in-line fuel filters (red-anodized jobbies)
and I assume that they are cleanable (ie non-disposable). I will take a
look at them tonight. As for the high idle jet... any advice on how not
to do it. I take instructions in the negative... tell me how not to do
it first (as I seem to live my life by Murphys Law) this eliminate much
frustration.
Thanks,
Barry


Keith Ruff wrote:
 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

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