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Correct O-ring material for carbs
- snorules
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thanks,
Sarge
1980 KZ550C (daily rider)
1981 KZ1000J (bagger project in progress)
1981 GS1100 (future dragbike)
1978 Z1R (not mine yet, but trying to work out a deal to acquire it).
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- H2RICK
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- Is this a fun bike, or what!!!
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Viton is THE way to go and it's not THAT much more than nitrile unless someone is trying to bend you over. If possible (and you haven't done this already) try to find an industrial supply place in your area that handles metric orings. Parker-Hanifin is a HUGE manufacturer of orings and has distributors everywhere in the civilized world. You can go to their website and download the particular catalogue you need and also check for distributors in your area. Last time I checked, their website wasn't exactly user-friendly but you CAN poke around and get to where you want to go with a little work. Sometimes paper catalogues are just better.....
KZ650C2 Stock/mint. Goes by "Ace".
H2A Built from a genuine basket case. Yes,it's a hot rod.
GT550A Stock/mint. Pleasant stroker.
2006 Bandit 1200S for easy LD rapid transit
Various H2 projects in the wings.
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- snorules
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Sarge
1980 KZ550C (daily rider)
1981 KZ1000J (bagger project in progress)
1981 GS1100 (future dragbike)
1978 Z1R (not mine yet, but trying to work out a deal to acquire it).
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- loudhvx
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Try this place for some individual o-rings. The standard industrial sizes won't cover all the orings in carbs, so this place is good because it has measurements. Plus it was nice that they let me order a measly 3 or 4 orings a couple years ago.
www.crc2onlinecatalog.com/gl_carb_parts.htm
1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.
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- bountyhunter
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A kind young man who works at the local Kawasaki stealership here was the guy who warned me when I tried to order an O ring from them since they cost about $12 each. Seriously, $12 each for an O ring.Thanks, I was looking at oring assortments on ebay, there is a viton 500 piece but they want like $119 for it compared to $15-$20 for nitrile.
he said go to the phone book and look up plumbing supply and you will find O ring suppliers. I did, and went to buy O rings. They have every size (metric and English) in every material. I needed about eight different O rings and he found them in Viton.
The capper was when he told me that since it was under $20 he wasn't going to write up a bill, he was just going to "sample" them to me..... sometimes karma gives you a break.:laugh:
1979 KZ-750 Twin
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- Nessism
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Buna-N is perfectly suitable for use in carburetors. Viton O-rings are only required for high temperature applications like inside the engine. I've been using Buna-N O-rings in my carbs for a number of years with good results.
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- snorules
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Sarge
1980 KZ550C (daily rider)
1981 KZ1000J (bagger project in progress)
1981 GS1100 (future dragbike)
1978 Z1R (not mine yet, but trying to work out a deal to acquire it).
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- Nessism
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All the carb kit O-rings are Buna-N, and the intake boot O-rings are Viton.
I don't think there is anything wrong with full Viton O-rings in the carbs but I think it's overkill for the application.
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- loudhvx
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They rate Viton one step higher than Buna N in their rating scheme (scale 1 to 5, 1 being best). They rate Viton ETP as one step higher than regular Viton, but I haven't seen Viton ETP advertised by my o-ring sources.
Viton ETP gets a 1
Viton gets a 2
Buna N (nitrite, nitrile) gets a 3
Urethane gets a 3 (but it's on a different chart)
1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.
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- snorules
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Sarge
1980 KZ550C (daily rider)
1981 KZ1000J (bagger project in progress)
1981 GS1100 (future dragbike)
1978 Z1R (not mine yet, but trying to work out a deal to acquire it).
Please Log in or Create an account to join the conversation.