Idle Mixture Screw Adjusment
Posted: Thu Nov 23, 2017 6:42 pm
Bought this at Walmart today for $13.97. Makes adjusting idle mixture screws a breeze.
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Idle Mixture Screw Adjusment
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Re: Idle Mixture Screw Adjusment
Posted: Fri Nov 24, 2017 7:40 pm
Neat! Thanks,
Re: Idle Mixture Screw Adjusment
Posted: Thu Apr 30, 2020 1:15 pm
What setting does everyone run there fuel/mixture screws at please. 
Re: Idle Mixture Screw Adjusment
Posted: Thu Apr 30, 2020 2:05 pm
Cannot see what it is, can you provide a direct link ?
Re: Idle Mixture Screw Adjusment
Posted: Fri May 01, 2020 12:09 pm
You will have various responses. However, I'd suggest between 1 1/2 and 1 3/4. Don't go beyond 2.tonybusa1300r wrote: ↑Thu Apr 30, 2020 1:15 pmWhat setting does everyone run there fuel/mixture screws at please.
Re: Idle Mixture Screw Adjusment
Posted: Sat May 02, 2020 7:20 am
Over the years, various guys have tried (including me) settings from 2 - 3 turns out. I've long ago settled on two turns out max. I've had the opportunity to rebuild several sets of carbs over the years that I know for sure have never been touched from the factory. When I get such a set, a rarity these days, I always check how many turn open the pilot screws are. I've never found one over 1 1/2 turns open. Most are about 1 turn. This is how Honda would supposedly set them according to the procedure in the manual - using a high resolution tachometer and find the highest engine idle for each cylinder. This is why no two are exactly the same using Honda's procedure. I don't know anyone that actually does this. I bench sync the throttle bodies, set the mixture screws 2 turns out and gauge sync them if I have the whole bike here and can run it. Absolute perfection could be had using Honda's procedure, but you need a very precise tachometer.
Re: Idle Mixture Screw Adjusment
Posted: Sun May 03, 2020 12:36 pm
We have been using a tool called a Gunson "Colortune", as a final step in tuning carburetors after we restore a bike after rebuilding carburetors, adjusting valves, etc. Opinions clearly vary on the merits of this tool, but I will say based upon our first-hand experience that the bikes start instantly, carburate crisply, and the plug insulators look light tan with little or no deposits on the electrodes. YMMVdaves79x wrote: ↑Sat May 02, 2020 7:20 amOver the years, various guys have tried (including me) settings from 2 - 3 turns out. I've long ago settled on two turns out max. I've had the opportunity to rebuild several sets of carbs over the years that I know for sure have never been touched from the factory. When I get such a set, a rarity these days, I always check how many turn open the pilot screws are. I've never found one over 1 1/2 turns open. Most are about 1 turn. This is how Honda would supposedly set them according to the procedure in the manual - using a high resolution tachometer and find the highest engine idle for each cylinder. This is why no two are exactly the same using Honda's procedure. I don't know anyone that actually does this. I bench sync the throttle bodies, set the mixture screws 2 turns out and gauge sync them if I have the whole bike here and can run it. Absolute perfection could be had using Honda's procedure, but you need a very precise tachometer.
N.
Re: Idle Mixture Screw Adjusment
Posted: Mon May 11, 2020 8:22 am
Bought what ? Link did not work for me either. Can you post Walmart link ?
Re: Idle Mixture Screw Adjusment
Posted: Mon May 11, 2020 11:19 am
ALL: Apologies for the problem with the gallery photos. Unfortunately, the new software is having a hiccup recognizing the gallery. (Had to do it. Old software was being eliminated.) Meanwhile, if you can, when posting try to include photos in the post.
Re: Idle Mixture Screw Adjusment
Posted: Fri Aug 19, 2022 8:49 pm
Did not see a picture or part number for the mixture screw adjustment tool at Walmart.
Bud
Bud
Re: Idle Mixture Screw Adjusment
Posted: Fri Aug 26, 2022 12:31 pm
when using your color tune, how many turns out on the air/mix pilot screws do you find on averageNobleHops wrote: ↑Sun May 03, 2020 12:36 pmWe have been using a tool called a Gunson "Colortune", as a final step in tuning carburetors after we restore a bike after rebuilding carburetors, adjusting valves, etc. Opinions clearly vary on the merits of this tool, but I will say based upon our first-hand experience that the bikes start instantly, carburate crisply, and the plug insulators look light tan with little or no deposits on the electrodes. YMMVdaves79x wrote: ↑Sat May 02, 2020 7:20 amOver the years, various guys have tried (including me) settings from 2 - 3 turns out. I've long ago settled on two turns out max. I've had the opportunity to rebuild several sets of carbs over the years that I know for sure have never been touched from the factory. When I get such a set, a rarity these days, I always check how many turn open the pilot screws are. I've never found one over 1 1/2 turns open. Most are about 1 turn. This is how Honda would supposedly set them according to the procedure in the manual - using a high resolution tachometer and find the highest engine idle for each cylinder. This is why no two are exactly the same using Honda's procedure. I don't know anyone that actually does this. I bench sync the throttle bodies, set the mixture screws 2 turns out and gauge sync them if I have the whole bike here and can run it. Absolute perfection could be had using Honda's procedure, but you need a very precise tachometer.
N.
Re: Idle Mixture Screw Adjusment
Posted: Fri Aug 26, 2022 10:48 pm
JoeInTuc will have to answer that, but if I remember correctly, we end up around 2.
Re: Idle Mixture Screw Adjusment
Posted: Sat Aug 27, 2022 11:09 am
Joe confirms that we start at 2 turns before using the Colortune, generally dial them in +- 1/4 turn from there. Sometimes as much as 1/2 turn.