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Author Topic: Anybody have a CB650 petcock?  (Read 1487 times)

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Offline jeepster

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Anybody have a CB650 petcock?
« on: September 21, 2009, 07:09:35 PM »
Mine leaks like a sieve now. A petcock from a 1982 cb650 nighthawk would be ideal, but I might be able to get by with another year. Let me know what you have.

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Offline cb650

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Re: Anybody have a CB650 petcock?
« Reply #1 on: September 21, 2009, 07:29:42 PM »
I dont have one but ust a FYI.  A 81 should work but wont have the "bowl".  Anything older wont bolt to the tank.
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Offline jeepster

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Re: Anybody have a CB650 petcock?
« Reply #2 on: September 21, 2009, 07:56:04 PM »
Quote from: cb650 on September 21, 2009, 07:29:42 PM
I dont have one but ust a FYI.  A 81 should work but wont have the "bowl".  Anything older wont bolt to the tank.

Good to know. Thx. I never really understood the point of the "bowl".
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Offline leekellerking

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Re: Anybody have a CB650 petcock?
« Reply #3 on: September 21, 2009, 08:17:36 PM »
Quote from: jeepster on September 21, 2009, 07:09:35 PM
Mine leaks like a sieve now. A petcock from a 1982 cb650 nighthawk would be ideal, but I might be able to get by with another year. Let me know what you have.



I have three!  But they are all screwed up on some fashion.  Good luck on your search!
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My Nighthawk is put together with wire and zip ties, burns oil, and handles like a pig.  I love it!

Offline cb650

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Re: Anybody have a CB650 petcock?
« Reply #4 on: September 22, 2009, 05:14:37 AM »
I have a couple old dirt bikes that have them and the screen is in the bowl.  Easier to clean than unbolting the whole thing with gas in the tank.   I might have a 81 minuse the screen laying around.  I'll add it to my list of things to look for this weekend.
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Offline nrd2052

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Re: Anybody have a CB650 petcock?
« Reply #5 on: September 22, 2009, 05:45:38 AM »
i've got one from an 81 650. Let me know if you still need one.

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Offline ColinMc

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Re: Anybody have a CB650 petcock?
« Reply #6 on: September 22, 2009, 11:44:36 AM »
I'm not sure about fitment...I am working on a friends 81 cb650 and I got a 80 replacement tank for it and it has a different threaded petcock...
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Offline jeepster

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Re: Anybody have a CB650 petcock?
« Reply #7 on: September 22, 2009, 11:49:54 AM »
Quote from: ColinMc on September 22, 2009, 11:44:36 AM
I'm not sure about fitment...I am working on a friends 81 cb650 and I got a 80 replacement tank for it and it has a different threaded petcock...

Hmmm...I am pretty sure that 81 was the year for new CV carbs and in all lot's of changes for the sohc 4 650. In the Clymer it has slightly different procedures for "models after 1981" very frequently.

Anybody know for sure?
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Offline cb650

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Re: Anybody have a CB650 petcock?
« Reply #8 on: September 22, 2009, 04:42:39 PM »
Quote from: cb650 on September 21, 2009, 07:29:42 PM
I dont have one but ust a FYI.  A 81 should work but wont have the "bowl".  Anything older wont bolt to the tank.

No dont have a clue ::)
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Offline jeepster

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Re: Anybody have a CB650 petcock?
« Reply #9 on: September 23, 2009, 09:14:07 AM »
Quote from: cb650 on September 22, 2009, 04:42:39 PM
Quote from: cb650 on September 21, 2009, 07:29:42 PM
I dont have one but ust a FYI.  A 81 should work but wont have the "bowl".  Anything older wont bolt to the tank.

No dont have a clue ::)

How strong of a "should" is that?
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Offline cb650

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Re: Anybody have a CB650 petcock?
« Reply #10 on: September 23, 2009, 04:26:57 PM »
As in Ive never done it but from what I gather from what I've seen it "SHOULD".  81/82 both had CV's but why they changed the bowl.  WTFK's
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Offline jeepster

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Re: Anybody have a CB650 petcock?
« Reply #11 on: September 23, 2009, 06:32:28 PM »
Quote from: cb650 on September 23, 2009, 04:26:57 PM
As in Ive never done it but from what I gather from what I've seen it "SHOULD".  81/82 both had CV's but why they changed the bowl.  WTFK's

Word. Looking on ebay I found a petcock from an 82 cb750K...Looks IDENTICAL to mine and even has that special bowl. Both are the same exact price OEM, but different Honda part numbers. I think I am going to pull the trigger on this one. $28...but guess how much Honda wants for an OEM one? a hundred and #$%*ing twenty six dollars.  :'( :'( :'(
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Offline jeepster

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Re: Anybody have a CB650 petcock?
« Reply #12 on: September 23, 2009, 07:02:20 PM »
OK, OK, I can't really afford the $28 + heartache if this thing doesn't fit. So...anyone running a 750 petcock on a 650 from the same year or vice-versa? Size, thread pitch should be the same right?
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