Topica Loopframe_Guzzi Archive


Subject: Re: VHB converson info request

Author: Bruce Giller

Date: Jun 5, 2001, 9:40 AM

Post ID: 1706997749


Joe,
Never did any SS-1 carb swapping but wouldn't the VHB 29s be more
appropriate than 30s? Both the Ambo and Eldo have the 29s. And don't
forget to get those all important intake venturis on the air filter side
of the carbs.

Bruce

'72 Eldo

joe jump wrote:
 
Finally, I have something on topic to talk about!
Yesterday I took in a V7 for some electrical work (handlebar switches,
warning lights, etc). The owner pointed out that the original SS-1 carbs
have been replaced with 30mm VHBs from an 850T, along with the intake
manifolds. I asked him how it ran and he said "not too good". I remember
reading in Greg Fields book, "Moto Guzzi Big Twins" about the early bikes
having a problem with eating the throttle, which was corrected by the
installation of a bushing in the intake port that would shrink the intake
port diameter and improve low speed throttle response. I doubt if those
bushings are still in this engine, but I haven't looked yet.
I am looking for advice from those who have converted from SS-1 carbs
to VHBs. Any tips would be appreciated-Thanks!

Joe in St Louis

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