Author Topic: Carburetor Synchronizer (Read 19920 times)

mycb750k6 · « **on:** December 20, 2009, 04:21:04 PM »

Would someone recommend a Carburetor Synchronizer? There a few on ebay but I'd feel better with a recommendation from one of you experts if you don't mind. Also is there a FAQ on Carburetor Synchronizing. I swear I looked.

bmarshall · « **Reply #1 on:** December 20, 2009, 04:33:31 PM »

+1, inquiring minds want to know

myhondas · « **Reply #2 on:** December 20, 2009, 04:46:32 PM »

only saw two different ones for the 750 on ebay. one was from a guy who bought it and never used it. the other is from a ebay store. Looks like either one would work.

Gordon · « **Reply #3 on:** December 20, 2009, 04:48:19 PM »

I try not to post this too often, in fact I rarely do, but here goes:

Use the search....

Whaleman · « **Reply #4 on:** December 20, 2009, 04:50:33 PM »

I like this kind. Dennis Kirk sells them cheap. www.denniskirk.com Dan

Gordon · « **Reply #5 on:** December 20, 2009, 05:04:20 PM »

http://forums.sohc4.net/index.php?topic=58880.0

http://forums.sohc4.net/index.php?topic=48242.0

http://forums.sohc4.net/index.php?topic=59736.0

Kframe · « **Reply #6 on:** December 20, 2009, 05:44:36 PM »

If you like rigging up your own stuff, and saving a buck, you can very easily make your own.
Here's just one version found on the interwebs.
Linky

The one I made is mounted to an L shaped board/base from plywood, and you have to put in restrictors, which are just two one inch sections of very narrow tube (toothpick sized inside diameter) spliced inline near each end. I found little nylon spacers that worked as restrictors in those drawers of Hillman fasteners at the hardware store. Most Ace and Our Own, True Value, have those drawers.

The restrictors damp the fluid, so it doesn't "boil" from the intake pulses and also slows the rise and fall of the fluid so you have time to make fine adjustments.

Here's mine:

-K

torrinh · « **Reply #7 on:** December 20, 2009, 06:12:07 PM »

Morgan Carbtune

MickeyX · « **Reply #8 on:** December 20, 2009, 07:54:02 PM »

Morgan is well worth the money. It is usually cheaper to go directly to them. Ours was around $70 and we can sync all 4 at one time without worrying about sucking fluid into the engine. So easy to setup.

johnyvilla · « **Reply #9 on:** December 20, 2009, 08:02:48 PM »

I agree with Whaleman- these units are cheap, convenient and work well hanging from rafters.

http://forums.sohc4.net/index.php?action=dlattach;topic=63048.0;attach=98274;image

B.O.X.N.I.F.E. · « **Reply #10 on:** December 20, 2009, 08:43:44 PM »

Morgan Carbtune.

dave500 · « **Reply #11 on:** December 20, 2009, 10:37:36 PM »

what ever 4 vacuum gauge set you buy,first thing is to use all the tee connectors etc and hook them all up to a single good vacuum source like the vacuum advance port on your car,bring the revs up to produce a steady idle and see that all the guages are reading the same,use a magic marker and write say either a subtract or add value on the guages which might be a little out,,use one of the gauges as your base line.

Lars · « **Reply #12 on:** December 21, 2009, 01:32:50 AM »

+1 on Morgan Carbtune.

Duke McDukiedook · « **Reply #13 on:** December 21, 2009, 02:12:47 AM »

Everyone that gets the Morgan loves it, that should say something.

Johnie · « **Reply #14 on:** December 21, 2009, 05:48:14 AM »

+5 on the Morgan. This is the last piece of the puzzle you will use to get that bike running great. Do not skrimp on the $$$ here. It is well worth the cash and the unit has proven itself on this board. I have used mine since 1999 and it still works like new. I can dial in the carbs perfectly every time. Go for the gusto man...

mycb750k6 · « **Reply #15 on:** December 21, 2009, 06:07:40 AM »

OK Morgan it is then. Thanks guys. They sell for sixty bucks on ebay so I bought one. Glad I asked since I was considering that more expensive one in the plastic box. So I also ran across this instruction on how to use the Morgan from salocal: http://www.salocal.com/sohc/tech/carb_sync/carb_sync_2.htm

I'm still unclear about one thing. Should the vacuum gauges be synced against each other on one carb before attached all four gauges to all four carbs? Otherwise how do you know your syncing the carbs and not the gauges? Sorry, sometimes I need it spelled out for me. Also what is the acceptable value on the gauges when you sync or is it just as low as possible and all the same?

NickC · « **Reply #16 on:** December 21, 2009, 07:21:27 AM »

I used one of these to dial mine in when i first received it

JBMorse · « **Reply #17 on:** December 21, 2009, 08:20:34 AM »

Quote from: mycb750k6 on December 21, 2009, 06:07:40 AM

how to use the Morgan from salocal: http://www.salocal.com/sohc/tech/carb_sync/carb_sync_2.htm

I'm still unclear about one thing. Should the vacuum gauges be synced against each other on one carb before attached all four gauges to all four carbs? Otherwise how do you know your syncing the carbs and not the gauges? Sorry, sometimes I need it spelled out for me. Also what is the acceptable value on the gauges when you sync or is it just as low as possible and all the same?

I don't think you need to sync the morgan first. I don't remember anything about that in the instructions. The carbtune has those metal slides instead of a fluid, which I like. The Carbtune.com website has the instructions that you get with the tool when you buy new. There's some extra info there as well.
Good luck! I'm sure you won't regret the purchase. It makes life so much easier.

Johnie · « **Reply #18 on:** December 21, 2009, 10:47:19 AM »

Quote from: JBMorse on December 21, 2009, 08:20:34 AM

Quote from: mycb750k6 on December 21, 2009, 06:07:40 AM
how to use the Morgan from salocal: http://www.salocal.com/sohc/tech/carb_sync/carb_sync_2.htm

I'm still unclear about one thing. Should the vacuum gauges be synced against each other on one carb before attached all four gauges to all four carbs? Otherwise how do you know your syncing the carbs and not the gauges? Sorry, sometimes I need it spelled out for me. Also what is the acceptable value on the gauges when you sync or is it just as low as possible and all the same?

I don't think you need to sync the morgan first. I don't remember anything about that in the instructions. The carbtune has those metal slides instead of a fluid, which I like. The Carbtune.com website has the instructions that you get with the tool when you buy new. There's some extra info there as well.
Good luck! I'm sure you won't regret the purchase. It makes life so much easier.

Agreed...never heard of calibrating the Morgan. Never did it. Always had great results. The only big difference from the new Morgan and the one I got in 1999 is mine came with the brass nipples. I hear they are plastic now. You may want to contact Z1 Enterprises to get some extensions for the ports. Makes it a lot easier to get the nipples in place on those port holes. The extensions are not expensive either.

ev0lve · « **Reply #19 on:** December 21, 2009, 11:12:02 AM »

Quote from: mycb750k6 on December 21, 2009, 06:07:40 AM

OK Morgan it is then. Thanks guys. They sell for sixty bucks on ebay so I bought one. Glad I asked since I was considering that more expensive one in the plastic box. So I also ran across this instruction on how to use the Morgan from salocal: http://www.salocal.com/sohc/tech/carb_sync/carb_sync_2.htm

I'm still unclear about one thing. Should the vacuum gauges be synced against each other on one carb before attached all four gauges to all four carbs? Otherwise how do you know your syncing the carbs and not the gauges? Sorry, sometimes I need it spelled out for me. Also what is the acceptable value on the gauges when you sync or is it just as low as possible and all the same?

No syncing of the gauge required. Just plug it into the carbs and go. On the K just pick the two carbs furthest out and get them right then the next two and so on.

The level the gauge shows is kind of immaterial as long as they're all reading the same - takes about 15 - 20 minutes adjusting idle and such

Johnie · « **Reply #20 on:** December 21, 2009, 01:45:19 PM »

And be sure you put a couple of good fans on that engine while it is idling so you do not overheat.

Deltarider · « **Reply #21 on:** December 21, 2009, 01:50:18 PM »

Quote

And be sure you put a couple of good fans on that engine while it is idling so you do not overheat.

One is enough.

flybox1 · « **Reply #22 on:** December 21, 2009, 02:12:12 PM »

just get all readings the same....and keep the tubes from falling onto your engine! they'll melt in no time....

(wondering why #1 suddenly went to hell, while i'm standing next to #4)

f'n rookie!

Tnutz · « **Reply #23 on:** December 21, 2009, 02:22:12 PM »

i have the 4 guage kind. i bought it on ebay for a decent price.

Johnie · « **Reply #24 on:** December 21, 2009, 02:23:11 PM »

Quote from: Deltarider on December 21, 2009, 01:50:18 PM

Quote
And be sure you put a couple of good fans on that engine while it is idling so you do not overheat.
One is enough.

On those hot days 1 is for the bike and 1 is for me...

News:

Author Topic: Carburetor Synchronizer (Read 19920 times)

bmarshall