Weber 32/36 DGV Jetting


I have had many requests for the carb jetting used on my stock and slightly tired '73 2002 motor since I have often waxed lyrical about the smooth operation at any RPM and the complete absence of deadspots and bog on acceleration from a stop. So here they are. Credit for these settings goes to Creighton Demarest.

Primary Jets
Main: 140
Air Corrector: 145
Idle: 60

Secondary Jets
Main: 170
Air Corrector: 175
Idle: 55

In addition, plug the small brass high-speed enrichment orifice in the top cover of the carb since this extra, coarse fuel supply is not needed with this jetting. This mod may have solved a problem I had with clouds of black smoke on WOT. I used a carefully-sized round toothpick to plug the hole. I cut it to length so that it is held tightly in place when the top cover of the carb was secured, no epoxy or sealant is necessary.

I have recently found that using 55pri/50sec idle jets works well for me and may be just a little easier on fuel consumption.

Overall, I have found that fuel consumption has not increased noticeably, except perhaps from the extra "testing" of throttle response I now do. Effects on emissions compliance are unknown at this time but I doubt it is very severe and certainly not likely a problem at idle. Slighlty smaller main jets, perhaps 130 and 160, would probably bring the loaded CO back in line with minimal performance loss.

Usual disclaimers apply, your mileage may vary, yadda x3.




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