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I have a 17.5mm carb (dellorto PHVA) that runs with a good mixture when I have my standard airbox mounted (92 mainjet). When I simulate to go with...
I have a new input after the weekend with my own scooter. You say you have standard airbox. How big is the inlet hole to the airbox? Have you...
Hard break in... Just my experience with Cars. Rental cars often has better peformance than a "private" car. Why? Hard break in :D
Wondering... could it be the reeds ??
Ok, some updates. I have changed to mainjet 92. Also Changed needle position. Finally got a good air/fuel mixture. Still going 55 km/h....
How could it get too much air with original airbox if the mainjet have the correct size (and no airleaks) ? Dont know how many ours it should be...
Had it out for a spin today after some adjustments. Had it on WOT almost all the time. The plug is now white as snow!!! Didnt think that 88 main...
Yeah, Ive though if it is too much, but the acceleration is ok from start. Cant pop wheeles, but thats not what I want. Upp to 1/4 gas I have good...
The best thing to do is to start the bike (with the choke plugged in), leave it for 5-6 minutes (after that, the choke should be closed). If it...
The choke is activated if it is disconnected. When you disconnected the choke, it started to activate again (the choke needs to get cold to get...
Sounds like lack of fuel... Have you Done some modifications to the engine? If not, I should clean the carb. If yes, What modifications?
Have you changed the engine setup without changing the carb? I would say that 85 main jet is too small for dellorto 19mm. Should be around 95....
Changed the sparkplug just before, because the old one was bad. So sorry, no loose plug :)
Sounds to me that you dont have the correct setup for the carb. Between 1/8 to 3/4 of gas, the needle in the carb does the work. Have you tried to...
I bought a scooter with a broken motor. Now I have fixed it, but the topspeed isnt there. Setup: (it was completly original before) Piaggio...
It could also be that the gaswire is too short (happened to me)
Tamiyacowboy // Yes, i did that. I measured the pin and I measured the deep of the hole. The pin is in the bottom without power. I tested the...
Ok, it seems that I have a problem with my automatic choke. I took it out and i simulated what the choke whould do with my fingers. Started right...
Why? Its a good base to start with instead of guessing the size. Its always a mathematical explanation for what mainjet you should have. Dellorto...
Trevligt med en norrbagge ;) Yes, my mainjet was the problem (I guess) I tried the 88 one on with the clip at the top of the needle. Now it was a...
