Carb sync tool.

Hey guys, I want to sync my carbs once I put them back on soon. What tool should I get to do this. I've seen this carbtune pro on youtube that seems to be good, but it's awfully pricey at $100. I suppose the money it would save me from having a mechanic do it negates the price. But if there are better deals or a better tool to be had at a better price, let me know.

If you go to Kz information-filebase at the top of the page there is a home made tool there that might do the trick and it will only cost a few dollars to build. Hope that helps you

From my own experience, I had purchased a set of 4 analog gauges ~ $70, same design that had been used for Kawi's since the bike came out. Hell, this is what they depict in the service manuals...

You can find them on e-bay for ~ $30-50...

Do they work, yup & have been for a long time for most home mechanics... I envy the guys that do it by ear... can only imagine...

Do they work exceptionally well in truly dialing in your carbs.... Now that's the question of the year...

In my quest in learning carb jetting, syncing and fine tuning I just couldn't get them dialed in.... Sure, maybe me being a noob in such matters had something to do with it but just never spot on...

Then I was turned onto the Morgan unit by a guy who makes a living at a motorcycle shop who does the carb work... Wholly crap, what a difference that made!

Based on the analog gauge flutters, I thought I had them dialed in to specification... Hooked up the Morgan unit, hell I was all over the place where 2cmHG was the spec... One of the carbs was out 12cmHG where the others where anywhere in between!

Sorry for the long story... If you plan on keeping this old girl and continue to sync your own carbs, spend the extra $40 for a truly good set of vacuum gauges which ever one you choose....

Your old girl will respond and you will feel the difference in idling and especially when you twist the throttle...

Good luck in your quest,

OMR

Old Man Rock wrote:

If you plan on keeping this old girl and continue to sync your own carbs

Just wondering if carbs go out of sync over time if no changes are made? Should this be a yearly check?

I've used a Gunson Color Tune the last few years and it's worked great. Double checked my results with a Morgan Carbtune the first few times I used it and they were right on. Now I don't bother.

Hmmmm... I've seen this clip before but can't remember where..... :laugh:

HerrDeacon wrote:

Old Man Rock wrote:

If you plan on keeping this old girl and continue to sync your own carbs

Just wondering if carbs go out of sync over time if no changes are made? Should this be a yearly check?

If you don't mess with the carbs at all, they stay in sync pretty well. If you take the carbs off and on once, they'll probably need a sync. If you make adjustments to the needles, you will definitely need to adjust the sync (on manual slide carbs).

I've heard turning the throttle wide open and letting it slam closed throws them out of whack/sync.
So don't let your friends turn the throttle and release it, slaming shut.:ohmy:

Well I ordered the carb tune pro. Figures it was worth the investment since I do plan on keeping this bike for a while. Seems pretty easy to do on the demo vid but we'll see.