I have read the techincal document on Wikispreedia and I am not sure I am tuning the carb correctly. It is a 1986.
I screw out the top screw, 1 1/2 turns.
I screw out the bottom screw, 1 7/8 turns.
I understand this is just a starting point. I then adjust the top screw to the highest RPM without the rear wheel spinning while on the center stand.
Do I do any more adjustment to the bottom screw?
Any help is appreciated.
Thanks,
Ack
Carb adjustment
Moderator: Moderator
Re: Carb adjustment
No, adjust the bottom screw first and for the highest RPM possible, wheel is allowed to turn.RunAckRun wrote:I have read the techincal document on Wikispreedia and I am not sure I am tuning the carb correctly. It is a 1986.
I screw out the top screw, 1 1/2 turns.
I screw out the bottom screw, 1 7/8 turns.
I understand this is just a starting point. I then adjust the top screw to the highest RPM without the rear wheel spinning while on the center stand.
Do I do any more adjustment to the bottom screw?
Any help is appreciated.
Thanks,
Ack
Then adjust the top screw, the one that extends into the throttle valve bore, until the wheel does not turn.
Bear 45/70
'83 Aero 80 X 3
'84 Aero 80 X 3
'85 Aero 80
'84 Aero 125 X 2
'84 Aero 125
'84 Aero 125 X 2
'85 Aero 50
'85 Spree
'83 Aero 80 X 3
'84 Aero 80 X 3
'85 Aero 80
'84 Aero 125 X 2
'84 Aero 125
'84 Aero 125 X 2
'85 Aero 50
'85 Spree
Re: Carb adjustment
Ok thanks Bear. It has been years since I have tuned a carb.
Are those starting points correct on the screw adjustment?
Are those starting points correct on the screw adjustment?
Re: Carb adjustment
RunAckRun wrote:Ok thanks Bear. It has been years since I have tuned a carb.
Are those starting points correct on the screw adjustment?
Yes, starting points only. even though I suspect the idle speed setting is very iffy at best.
Bear 45/70
'83 Aero 80 X 3
'84 Aero 80 X 3
'85 Aero 80
'84 Aero 125 X 2
'84 Aero 125
'84 Aero 125 X 2
'85 Aero 50
'85 Spree
'83 Aero 80 X 3
'84 Aero 80 X 3
'85 Aero 80
'84 Aero 125 X 2
'84 Aero 125
'84 Aero 125 X 2
'85 Aero 50
'85 Spree
Re: Carb adjustment
Are these the idle and mixture screws you refer to or does the US carb have two screws to adjust fuel mix?
Not one day that we are here on this earth is promised to us, so treat every day as if it is your last, and every breath as if it were the same
198? Honda Spree NQ50M (got parts of two different bike mixed up in there!)
198? Honda Spree NQ50M (got parts of two different bike mixed up in there!)
Re: Carb adjustment
Lower screw closer to the carb mount flange is the idle mixture adjustment screw. The upper screw is the idle speed adjustment screw.Storm wrote:Are these the idle and mixture screws you refer to or does the US carb have two screws to adjust fuel mix?
Bear 45/70
'83 Aero 80 X 3
'84 Aero 80 X 3
'85 Aero 80
'84 Aero 125 X 2
'84 Aero 125
'84 Aero 125 X 2
'85 Aero 50
'85 Spree
'83 Aero 80 X 3
'84 Aero 80 X 3
'85 Aero 80
'84 Aero 125 X 2
'84 Aero 125
'84 Aero 125 X 2
'85 Aero 50
'85 Spree
Re: Carb adjustment
Roger, thanks. Thought that was the way of it.
Not one day that we are here on this earth is promised to us, so treat every day as if it is your last, and every breath as if it were the same
198? Honda Spree NQ50M (got parts of two different bike mixed up in there!)
198? Honda Spree NQ50M (got parts of two different bike mixed up in there!)