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Badger-Roy
08-09-21, 10:37 PM
I’m trying to set up up the air/fuel mix on a carb which arrived in bits, in the manual it says this: The factory position for most air fuel mixture screws is usually between 1.5 and 2.5 turns out from being screwed all the way in. If you ever want to start fresh, turn the screw clockwise until it is lightly seated, then back it out about 2 turns. Then you can make adjustments from this position.[9] (https://www.wikihow.com/Adjust-an-Air-Fuel-Mixture-Screw#_note-9)
my question is when it says “turns” does that mean a full 360 turn of the screw or a turn of the wrist which would be a 180 turn of the screw, any help would be appreciated.

Last Train
09-09-21, 08:32 AM
I’d assume a full turn as being a 360 rotation Bagde.
What bike is it ?
& good luck :)

Badger-Roy
09-09-21, 08:58 AM
It’s on my volusia 800, the original carb had a crack so brought this one and rebuilt it but the bike now runs like crap spluttering once it gets up to speed. Cheers

DC
09-09-21, 08:59 AM
As LT says one full turn is one complete rotation of the screw .

Badger-Roy
09-09-21, 09:00 AM
As LT says one full turn is one complete rotation of the screw .
Cheers, il give that a ago and keep my fingers and toes crossed.

Last Train
09-09-21, 09:13 AM
It’s on my volusia 800, the original carb had a crack so brought this one and rebuilt it but the bike now runs like crap spluttering once it gets up to speed. Cheers

Bummer :(

Jets all nice & clean & seated nicely ?
Air leaks on carb or intake seals ?

Badger-Roy
09-09-21, 09:25 AM
Bummer :(

Jets all nice & clean & seated nicely ?
Air leaks on carb or intake seals ?
Yeah jets all good and can’t find any leaks etc, it runs perfect on tick over and low speed up to 60 but over that it splutters.

Trev_P
09-09-21, 12:45 PM
if it has a fuel pump check it for pressure or it could be the float level is wrong/hole in float so that it starves the bowl of fuel above 60

Burbler
10-09-21, 07:09 PM
Try Dettol and a wire brush - worked for me.

Trev_P
11-09-21, 12:10 PM
Try Dettol and a wire brush - worked for me.
Klingons ??l :p

Badger-Roy
17-09-21, 03:21 PM
Well….. after removing the damn carb, stripping it and rebuilding it 3 times it still rode the same, in a sudden flash of genius (small and unexpected I admit) I brought a set of spark plugs, it rides like a new bike, so I’m guessing one of the plugs was breaking down at higher revs.
Anyway problem solved and smile restored.

BB
17-09-21, 04:22 PM
Well….. after removing the damn carb, stripping it and rebuilding it 3 times it still rode the same, in a sudden flash of genius (small and unexpected I admit) I brought a set of spark plugs, it rides like a new bike, so I’m guessing one of the plugs was breaking down at higher revs.
Anyway problem solved and smile restored.

Good to hear you solved it! Keep smiling! :cool:

Burbler
17-09-21, 08:36 PM
Brill