Time to synch the carbs

Getting your blazingly fast Suzuki powerplant to perform even better!

Moderators: oldjapanesebikes, H2RICK, diamondj, Suzsmokeyallan

Post Reply
Mightyzod
On the street
Posts: 46
Joined: Sun Apr 29, 2012 8:31 am
Country: USA
Suzuki 2-Strokes: 11 Suzukis, Currently 74 GT750, 01 GSF 1200

Time to synch the carbs

Post by Mightyzod »

Hello everyone. It has been a couple of weeks since I was on here asking stupid questions, but OilyOne has been running fairly well and I have just been enjoying it. I do think it is time to synch the carbs, as they have been apart and off the bike (more times than I care to count) and I do have everything close to right (points, etc.) I purchased a Carbtune from Morgan in England. I have used Motion Pro on all of my four strokes, going off the information in the manual. Sadly, the many manuals I have for my 1974 gt750 say little to nothing about synching with a tool. A service bulletin describes the procedure using the floating ball type of tool. Sean Morgan of Morgan Cartune said remove the plugs from the inlets put in the adapters then adjust until the readings are even. Can anyone elaborate on this procedure a bit? Remember, you are explaining this to a guy that needs things in thier simplest form, such as, do I plug the vac. line? Run it on prime for the procedure?
Man, I write too much. Help me, so I can keep riding and stop begging for help.

MZ
User avatar
oldjapanesebikes
Moto GP
Posts: 3229
Joined: Sat Feb 07, 2009 12:43 am
Country: Canada
Suzuki 2-Strokes: GT750(Jx3,L,M,A,B),T500
Location: Ontario
Contact:

Re: Time to synch the carbs

Post by oldjapanesebikes »

One of the simplest ways is using the procedure in the Suzuki carb manual - pages 13 through 16.

http://www.oldjapanesebikes.com/mraxl_G ... cover.html" onclick="window.open(this.href);return false;

For final set up I normally use a Uni-Syn that I used to use on my Austin-Healey :D Works well with 2 strokes as it isn't as affected by the pulses you get with these engines (the Uni-Syn, not the Healey !) . 8)
Ian

If at first you don't succeed, just get a bigger hammer !
User avatar
RING_DING
To the on ramp
Posts: 447
Joined: Thu Apr 21, 2011 5:32 am
Country: USA
Suzuki 2-Strokes: 1974 GT750 B-4 (JDM), 1975 GT750M
Location: North Carolina

Re: Time to synch the carbs

Post by RING_DING »

I've got a Morgan Carbtune as well. I follow the procedure that Ian mentioned (in the manual), and then hook up the Carbtune just for final validation. I've found that the Suzuki procedure is amazingly accurate.
1973 Suzuki GT750K with Sidecar - Bonneville 2020
Mightyzod
On the street
Posts: 46
Joined: Sun Apr 29, 2012 8:31 am
Country: USA
Suzuki 2-Strokes: 11 Suzukis, Currently 74 GT750, 01 GSF 1200

Re: Time to synch the carbs

Post by Mightyzod »

Thanks to all. I will take a swing at this and let you know how it went.

MZ
Post Reply