Re: [2cylinderhondas] Proper way to adjust fuel mixture?

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dana
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Joined: Mon May 31, 2010 2:12 pm

Re: [2cylinderhondas] Proper way to adjust fuel mixture?

Post by dana »

Message
Turn the screw in (clockwise) and back it out 1 to 1 1/2 turns. If you move it out more, you will experience an intermittent miss at highway speeds.
Richard Morris
> -----Original
> Message-----
> From:
> 2cylinderhondas@yahoogroups.com
> [mailto:2cylinderhondas@yahoogroups.com]
> On Behalf Of
> infinkc
> Sent:
> Thursday, July 06, 2006 9:09 PM
> To:
> 2cylinderhondas@yahoogroups.com
> Subject:
> [2cylinderhondas] Proper
> way to adjust fuel mixture?
> Been trying to adjust my carb since its running rich, by looking at > the > manual the screw on the side which you adjust the mixture > inwards > (clockwise) to decrease, outwards(counter clock) to increase. How > do > i properly determine the optimal fuel setting? turning the screw to me
> had no effect. The manual says to use a CO meter but how many people
> at home have one of those handy. I was thinking on running an o2
> sensor on the car for easy adjustment with a meter, has anyone added
> one? if so at what point of the exhause was it added? I just know
> there has to be an easy way to adjust this
> thing.
> -Kris
friend
Posts: 0
Joined: Fri Sep 14, 2012 10:54 pm

Re: [2cylinderhondas] Proper way to adjust fuel mixture?

Post by friend »

Just a note of caution:
    If you need to replace the "O" ring under the intake manifold, an "O" ring too thick can cause you to crack the base.  Too thin and it will not seal.  I believe Honda still has them # 91325-568-000.  If not, I still have a few.
Bill
> -----Original Message-----
> From:
> 2cylinderhondas@yahoogroups.com [mailto:2cylinderhondas@yahoogroups.com] > On > Behalf Of > goinhm@...
> Sent:
> Thursday, July 06, 2006 11:55
> PM
> To:
> 2cylinderhondas@yahoogroups.com
> Subject:
> Re:
> [2cylinderhondas] Proper way to adjust fuel mixture?
> You mention in your msg that turning the idle mixture screw had no > effect on > the rpm. Are you able to set the idle rpm at 1100 and does the > engine hold > the speed at 1100 or does it exhibit problems (surging, > varying up and down, > or runs for a little and stops). If you are not able > to set the idle rpm at > 1100 (using the throttle stop screw), you have a > plugged idle circuit on > your carb. You will need to clean the > carb.
> Before taking the carb apart, verify you have a tight connection > where the > carb meets the intake manifold (the rubber inlet piece). Also, > there is an > o-ring under the inlet where it enters the engine which can > cause idle > problems if you are getting air leaks.
> Also, check that
> you do not have a dirty air cleaner which is restricting > air flow (you can > temporarily remove the air filter).
> You mention that your carb is
> running rich. Have you checked the float
> level? And check the needle and
> seat at the float to see if it is shutting off
> properly.
> good
> luck,
> Dale
> Been trying to adjust my carb since its running rich,
> by looking at
> the manual the screw on the side which you adjust the
> mixture inwards
> (clockwise) to decrease, outwards(counter clock) to
> increase. How do
> i properly determine the optimal fuel setting? turning
> the screw to me
> had no effect. The manual says to use a CO meter but how
> many people
> at home have one of those handy. I was thinking on running an > o2 > sensor on the car for easy adjustment with a meter, has anyone added
> one? if so at what point of the exhause was it added? I just know
> there has to be an easy way to adjust this thing.
> [Non-text
> portions of this message have been removed]
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