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'84 Moto Guzzi
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Posted 6/22/2005 5:26 PM (#8175)
Subject: '84 Moto Guzzi


I was wondering if anyone has a Moto Guzzi Cal. II. I just got back from a 5,000 mile trip. Every time I would go up a hill(mountain road) or if the wind was high my bike would cut out in fifth gear, and I would have to shift down to fourth gear. I have messed with the carbs but I can't seem to fix it. Does anyone have any ideas on what could be causing this and if so any soluations. By the way this was my first cross country tour with a side-car and it was great.

Keeling
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Uncle Ernie
Posted 6/22/2005 7:28 PM (#8177 - in reply to #8175)
Subject: RE: '84 Moto Guzzi



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There's mountain roads, and MOUNTAIN ROADS! Was this happening over a rise in Ohio, Blue Ridge Parkway in the Smokies, or Pikes Peak?
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Hack'n
Posted 6/22/2005 8:07 PM (#8178 - in reply to #8175)
Subject: RE: '84 Moto Guzzi



Expert

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Location: Boise, Idaho
You mention 5th gear pulling against the wind or climbing. Altitude alone must not be the problem. A lean mixture could be. Weak spark from fouled or worn plugs could be. Weak coil or electronic ignition problem could be.
If buffeting wind or steep climb, even the float level could be. If your RPMs were down you could be just lugging the motor.

Glad you had a good trip anyway.

Lonnie
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Posted 6/22/2005 9:16 PM (#8180 - in reply to #8175)
Subject: RE: '84 Moto Guzzi


Thanks for such the quick respones. My brother and I messed with the carbs through out the trip. At first my sparkplugs were showing signs of being ran too lean,so we fix that, and it still would lose power in fifth gear. We ran through Independence Pass in Co. there was still snow on the ground in June. The elevation there is 12,095 ft. We ran through the Northern Cascades in Washington. Then made our way to Portland,Or. On the way back it ran fine until we hit Wyoming with the hills and the wind I had to actually run in third gear. Raton Pass in New Mexico was not that bad had to run in fourth gear. The northern part of Texas has a lot of wind and ran in fourth gear there. I had done some research on the web and going to try a few things. I may go ahead and get a new coil for the bike and see what that does of it. Well thanks again for the ideas.
Ride on,
Keeling
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Hack'n
Posted 6/22/2005 11:56 PM (#8181 - in reply to #8180)
Subject: RE: '84 Moto Guzzi



Expert

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Location: Boise, Idaho
Even with a well tuned motor, the extreme altitude changes you encountered would cause excessive richness when at 12+K' especially if you are tuned for sea level. The highest pass on the North Cascade Hiway is only 5,477' and that causes problems with carbs that are tuned for sea level.
Last summer I ran from the extremes of 230' below sea level(Death Valley) to 12,000+' in the Sierra Nevadas with minimal problems due to having a late model constant velocity carburetor (CV) on the bike even though it is set a little rich at sea level. Hot starting was a bit cranky at times, but that was all. One of my riding partners had fuel injection and had no problems at all. The third rider had an aftermarket performance carburetor and had problems similar to your's. This was with a solo bike.
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