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Carb Sync Adapter Size

  • Thread starter Thread starter jm_foote
  • Start date Start date
5mm

5mm

I think it's 5mm on all Suzukis but I'm sure someone with a '78 will confirm. One word of caution: Make sure that price is for 4 of them...if it's not, you can find them for a lot less money.
 
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Yes, I think they are one per carb. Where would they be cheaper?
 
Ahh, hell, I'll get them anyway, at this point what's another 30 bucks. I think I've already spent a grand in parts this year alone, **** me off.

Thanks for the help on the size.
 
And just how is that going to bastardize your manometer? Looks like they attach to the bike.

When they are installed, you will love them. My KZ1300 had similar items from the factory. The center two (#3&4) were joined together and went to the PCV valve, the others had rubber caps. When it was time to sync the carbs, it was a simple matter of removing rubber caps or hoses and installing manometer hoses. :-D


.
 
jm_foote said:
Yes, I think they are one per carb. Where would they be cheaper?
Click to expand...

I thought about getting them but realized that the price was ridiculous so I checked around. I found a place, on-line, that sold them for $1.25 a piece. I'm sorry I can't recall the name but I'm sure it was in the Bay area (near S.F.). You might even be able to buy them at a hydraulic supply store but I don't know about that.

I don't really understand why they would be necessary. I wouldn't think that the synch would get 'out of whack' all that often. Maybe someone can offer some information on that.

EDIT: I just remembered....I'm pretty sure the place was in Hercules (which is in the east bay near Oakland) and it was a motorcycle parts store.
 
Also...

Also...

By the way, Hondas and Suzukis use 5mm. Some of the Yamahas use 6mm. Most Kawasakis have a plug built in.
 
Steve said:
And just how is that going to bastardize your manometer? Looks like they attach to the bike.
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Click to expand...

I'm planning on creating a manometer of the bastardized version as I am too cheap to pay 150 bucks for a set. Picked up a cheap gage and will do a manifold type of hook up. If I get adventurous, I may try to make a gravity one. I just need a good alternative for mercury as I would probably have troubles getting my hands on some here, and water wouldn't work, because it would require a 20 foot high manometer.
 
If you are so inclined you can make your own adaptor fittings. Just get a couple of inch long 5mm bolt studs, cut off the hex head and drill a hole through the center. Takes a good eye and a drill press, but quite do-able. Then attach a nut with a rubber o-ring to seal against the intake and use a little teflon tape to increase the outer diameter of the end that you'll hook up to the 3/16 vacuum hose. voila.
 
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