Post by sailracer on Aug 5, 2013 7:57:53 GMT -5
I had a thought last night.It's unconventional, but i'll bounce it around anyway. My original carb runs great in the stock 50 cc. Plug has a beautiful color, power is there,couldnt ask for better.
I built a new motor with a 50mm BBK, a9 cam variator,sliders, clutch springs and gears. Why wont the original carb do the same fuel/air mix in the bigger cylinder? It's based on the venturi-air flowing through it vs the jet right? I have an exhaust with an expansion chamber, and I'm keeping the stock airbox, so the fuel/air ratio should stay the same, just a bigger volume right? Im just gulping more of it in the 83cc vs the 49. any thoughts?
BTW, I did buy a 20mm carb,and a full jet assortment, but why mess with all that?I'm keeping the same exhaust, I don't want a loud one,unless i mess with the airbox, the ratio should stay the same Technigas sells my same exhaust for $200.00. it's a 2 stroke type, but for a 4 stroke.all opinions welcome
I built a new motor with a 50mm BBK, a9 cam variator,sliders, clutch springs and gears. Why wont the original carb do the same fuel/air mix in the bigger cylinder? It's based on the venturi-air flowing through it vs the jet right? I have an exhaust with an expansion chamber, and I'm keeping the stock airbox, so the fuel/air ratio should stay the same, just a bigger volume right? Im just gulping more of it in the 83cc vs the 49. any thoughts?
BTW, I did buy a 20mm carb,and a full jet assortment, but why mess with all that?I'm keeping the same exhaust, I don't want a loud one,unless i mess with the airbox, the ratio should stay the same Technigas sells my same exhaust for $200.00. it's a 2 stroke type, but for a 4 stroke.all opinions welcome
jet
jet and it runs great i didnt see a differance in the throat size they looked exactly the same and the 20mm I bought from scrappy and was about 60 bucks the 19mm I bought from chinesepartswholesale.com for 19 bucks 
