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Old 07-24-2012, 11:28 PM   #91 (permalink)
redyaris
Master EcoModder
 
Join Date: Jan 2010
Location: Alberta Canada
Posts: 744

redyaris - '07 Toyota Yaris
Team Toyota
90 day: 45.54 mpg (US)

Gray - '07 Suzuki GS500 F
Motorcycle
90 day: 70.4 mpg (US)

streamliner1 - '83 Honda VT500 streamliner
Motorcycle
90 day: 75.63 mpg (US)

White Whale - '12 Sprinter 2500 Cargo Van
90 day: 22.01 mpg (US)
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Quote:
Originally Posted by renault_megane_dci View Post
Sorry if I didn't made myself clear.
I understood what you were saying previously, I just added an other option.

What if the cheapest solution was "more P&G" instead of constant throttle at a throttle opening that is not appropriate ?

It would also be a good test to narrow the problem to the carb.

To be honest my favorite solution would be to build a single carb manifold and use only one of your carbs.
More P&G is not raeally a viable option on a motorcycle due to the low mass 300kg as compaired to a car at 1200kg. better stream lining expands the viability of P&G but not any were close to a car. Varn and Yamaha 250 V-twins use Single carbs and I will have to look into what Yamaha does with there cooling of the rear cyclinder. It may be that for short trips in low ambiant temps the jetting is not an issue or Ymaha may have aranged the cooling to the rear cylinder to be better than the front cylinder I just don't know yet...

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