So Im working on this 2002 elite 80 for this lady to see if i can get it running for her, Its been sitting a year, guessing i should just take the carb off and clean it but before i do that heres something i notice, I was messing with it, and dont know why i did it but I did. I put my finger in the carb inlet and cranked it over and it fired up and idles as long as my finger is restricting air. So im thinking its either getting to much air, or not enough fuel. Cause by cutting airflow its making the mixture correct im thinking.
whats some opinions thanks.
2002 Elite 80 odd running problem
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- Wheelman-111
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Re: 2002 Elite 80 odd running problem
Greetings:
The carb may have a clogged low-speed circuit, delivering insufficient fuel for it to run with full air. Blocking the throat with your finger acts as a true "choke" and forces higher vacuum to occur, perhaps sucking fuel from the Main or any other handy passages. It might run at idle or a bit more with a throat so restricted, but probably won't produce much power at much higher RPM with the limited access to O2. Plus, you may need that finger back.
You had the right idea in cleaning the carb.
The carb may have a clogged low-speed circuit, delivering insufficient fuel for it to run with full air. Blocking the throat with your finger acts as a true "choke" and forces higher vacuum to occur, perhaps sucking fuel from the Main or any other handy passages. It might run at idle or a bit more with a throat so restricted, but probably won't produce much power at much higher RPM with the limited access to O2. Plus, you may need that finger back.
You had the right idea in cleaning the carb.
Wheelman-111
Most of my money is spent on scooterparts. The rest is just wasted.
"ISO": '03 Vespa ET4 Malossi187 74MPH
Flash 9: 2001 Elite SR Contesta 72 ZX Tran, 9:1 Gears, Stock Airbox/Carb/Pipe 58.8 MPH
Punkin: 2010 Vespa/Malossi S78, 61MPH
Most of my money is spent on scooterparts. The rest is just wasted.
"ISO": '03 Vespa ET4 Malossi187 74MPH
Flash 9: 2001 Elite SR Contesta 72 ZX Tran, 9:1 Gears, Stock Airbox/Carb/Pipe 58.8 MPH
Punkin: 2010 Vespa/Malossi S78, 61MPH
Re: 2002 Elite 80 odd running problem
i have an SB50 carb that acts the same way. but that baby is so fresh and so so clean. i can't get a drop of fuel in bowl with out choking it by covering the air inlet. i tried a new bowl gasket, a known good needle, and resurfacing the needle valve seat. could it be an extremely stubborn blockage?
1986 Spree SE:
- pulley mod
'85 head
SB50 intake, reeds, carb
UNI filter
44mm bbk
3x10 conti zipps
next:
taz gears, sa50 clutch w/ 2k springs
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95talontsi
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Re: 2002 Elite 80 odd running problem
Im going back over there tonight, so ill go ahead and pop the carb off and give it a good once over. thanks for the help
