Join Date: Apr 2008
Location: Atlanta, Georgia, USA
Model: GL1800, GL1200, GL1000
1987 GL1200 Fuel Petcock - one year only - HELP!
Has anyone actually taken the fuel petcock on a 1987 GL1200 apart and put a rebuild kit 4-hole disc and gaskets in it?
I'm trying to find out of they use the same rebuild kit parts as a 1984, 1985, and 1986 GL1200 fuel petcock. If they don't, we 1987 owners are just plain screwed if our fuel petcocks spring a leak.
Here's what I've found out so far:
The 1987 fuel petcock (PN 16950-ML8-601) is definitely a different part than the fuel petcock (PN 16950-MG9-005) for a 1984, 1985, or 1986 GL1200.
The obvious things that are different are:
1. The fuel outlet on the 1987 petcock is 3/8" (10mm fuel hose), while the fuel outlet on the 84, 85, 86 is 1/4" (5.5mm fuel hose). So the fuel hoses that fit are not the same. (Not exactly a deal breaker.)
2. The distance between the mounting screw holes is different: the 1987 petcock mounting holes are approximately 46mm apart,while the 84, 85, 86 petcock mounting holes are about 42mm apart. So they won't mount on an '87 fuel tank and vice-versa.
3. The entire body of the 1987 fuel petcock is larger than an 84,85,86 fuel petcock. The 1987 petcock body diameter is 32mm. The 84, 85, 86 petcock body diameter is 28mm. So, they are 4mm smaller.
The 4-hole disc (PN 16955-268-020) that comes in a rebuild kit for the 84, 85, 86 fuel petcock is 20mm in diameter. That's the issue that worries me. Will that disc fit in a 1987 fuel petcock properly, or is the 4-hole disc for a 1987 fuel petcock actually larger in diameter to fit the larger fuel petcock and flow more fuel?
I have a rebuild kit for an 84,85, 86 GL1200 that includes the 4-hole disc (PN 16955-268-020). The '87 fuel petcocks are riveted together and not designed to be rebuilt. (Though many other Honda petcocks are as well, but can be drilled out, rebuilt, and reassembled with screws. I've done many that way.)
If I take mine apart and the 4-hole disc doesn't fit, I'm basically screwed. NO one, and I mean NO one has a 1987 GL1200 fuel petcock for sale on planet earth. I've checked all of my many sources, including vintage bike parts suppliers and my "special" one in Norway.
So, has anyone successfully taken apart a 1987 GL1200 fuel petcock and rebuilt it using a rebuild kit for an 84, 85, or 86?
Thanks for any advice or experience on this issue.
2006 Arctic White GL1800
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U.S. Navy SWO (1967-1976)