Erroneous posts have been removed. (And I'm awaiting delivery of my '72 TR6R this coming week, sheesh.) But it would seem to me that a single carb (Tiger) feeding two cylinders is less efficient than twin carbs, each one dedicated to feeding a single cylinder (Bonneville). And I'm here to learn rather than speculate.Does it remotely make sense to you?
40% more efficient? I think not. I would think the opposite, that 2 carbs feeding the same motor would use more fuel, same as fitting a larger carb.Erroneous posts have been removed. But it would seem to me that a single carb (Tiger) feeding two cylinders is less efficient than twin carbs, each feeding one single cylinder (Bonneville).
Bigger or multiple carbs feed more gas for more power, thus it would be less efficient than a single carb. While there may be slight differences in efficiency depending on how much throttle input you give it, I doubt you would see a 40% difference.I stated that a single carb would be less efficient..... What have I missed here and I'm here to learn from all of your experience????
Depends on if you're talking about power efficiency or fuel economy.
Yup, MPG isn't everything. I have a CRX that got 42mpg with the 78hp motor it had in it, I swapped in a B16 Vtec motor that made 100hp more. Lost 10mpg, but with the extra 100hp it was a decent sacrifice.my 72 T120 got 42mpg on concentrics. i put on 32mm mikunis and at 55mph it would get 50mpg with a 19/47.
i put on a morgo with headwork and it went down to 42 again.
now i have 34mm mikunis and 21/47, and i have no idea what the mpg is anymore. but it goes 117mph so i dont care.
Can you PLEASE provide a link to Johntioc's carb tuning guide as I'd really like to get a copy of it. THANKS!.........................Johntioc mentions needle jet wear. He is most correct..................Then print the carb tuning guide Johnitoc wrote. ........................
Thanks for the kind recommendation. It actually advances the timing for starting., then retards for idling. Idle stabilization was first adopted for our motorcycles with the Boyer Micro-Power systems some years before Pazon started using it.& has extra retard durning cranking for easy starting.