I just got my carbs back from Bing for a full restoration.
This guy named Charlie did an amazing job.
These things look brand new!
I can't wait till spring when I can get them set up, though I'm a little nervous about getting them synced.
Which tool do you guys prefer for that? I've heard that the Carb-mate works well with these carbs but there are other options.
> There are some very good electronic balancers. These are easy to use and a great way to go if you have multiple twin cyl' bikes that need tuning throughout the year.
> If you just have the one bike, maybe you wouldn't want to spend hundreds of dollars. In that case you can build a simple manometer using a yardstick, 12 feet of small ID clear hose, and some red liquid (like ATF). See THIS LINK
Remember, your carbs need to be "balanced" at idle (using the Speed screw) AND balanced at 1800 RPM (using the cable length adjusters).
Owning an old Airhead is easy.
Keeping an old Airhead running great is the true test.
The Harmonizer is great but sadly out of production.
I used my homemade balancer for decades. The homemade design makes it as reliable as gravity, but it is so sensitive, it can be overly touchy. So I splurged a few years ago a bought a Digi Sync tool (thedigisync.com). It is easier to use and seems to produce good results. I’m good with it!
@wobbly Great suggestion! I'll build one of those and give it a try. Thanks!
hi After many years I have used a gauge That uses mercury, I have had it for twenty plus years. I also use a colour tune kit to set idle mixture. You can see colour of spark
I've never heard of the colour tune system. Anyone else using that?
Is the color of the spark a good indicator of proper idle mixture?
I've never heard of the Colortune system. Anyone else using that?
Is the color of the spark a good indicator of proper idle mixture?
I worked in a shop that had one. It's a clear plastic part that takes the place of the sparkplug. You can see the ignition color to do initial mixture settings.
There are several YouTube vids if you'd like to see.
Owning an old Airhead is easy.
Keeping an old Airhead running great is the true test.
@noblenobby Which adapter do you use for it?
That was 20 years ago !! 🤣
Owning an old Airhead is easy.
Keeping an old Airhead running great is the true test.
@wobbly What's wrong, Richard? Getting to that age where you can't remember that far back 🤣
Eh, I'm 46 and my memory is already turning to shit....
I made a monometer yesterday, pic attached. Cost about $25.
I'm going to fill it with 2-stroke oil and the hose fits snuggly on the VTO.
I think I'll use the plug grounding method to set the mixture as I can't really afford a color tune right now.
I think I'll use the plug grounding method to set the mixture as I can't really afford a color tune right now.
I suggest you set the idle mixture screws at 1.5 turns out and leave them.
Use the idle speed screws and cable adjustments with the manometer.
Owning an old Airhead is easy.
Keeping an old Airhead running great is the true test.
@wobbly Why do I keep it at that setting? Is that universal for mixture? So i don't need to adjust it at all? That would be just fine by me!
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