Topica Loopframe_Guzzi Archive


Subject: RE: Exhaust & Carb Tuning

Author: joe jump

Date: Aug 2, 2005, 6:06 AM

Post ID: 1719240366



Dave,
Sorry for the late reply - just got back from a business
trip.
I appreciate your input. I've been thinking quite a bit
lately about carb size. I'd sure like to hear more about your upgrade.
Did you go with PHM's off of a LeMans or later model 1000, or did you go
strictly after market. I've been thinking that CV carbs might work out
well - the 40mm CV units used on R-100s seem to work fine. Also, did you
use the delrin (sp?) intake stubs I've seen offered by MI or MG? What
did you end up using for air filters/battery covers?


Thanks for your time!

Joe in St Louis
850T-Powered Ambo
"Junkyard"


David Washburn wrote:
 

Darrell Dick writes:
Hi Joe,

I think the cross-over will help, but I would work with the jetting too.
Maybe fatter isn't better? Did you notice any difference when you
changed
to the Ambo jetting. Maybe try dropping the needles?

Joe and Darrell, it has been my experience that the 29s and 30s will
only flow so much air. Putting more fuel in just makes the engine bog.

Upgrading to 32s or 36s are a big help. I have the MG Cycle repo "Lady
Quiet Touch" mufflers on my bike and it still has plenty of go in the
RPM range discussed.

DW

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