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Author Topic: 78 750F2 Fuel tap repair  (Read 356 times)

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Offline brianc

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78 750F2 Fuel tap repair
« on: June 18, 2022, 02:13:27 AM »
You can buy the packing for the fuel tap (16955-268-020) which fits 350F, GL1000 and probably others. The fuel tap on my 78 F2 (which is NLA) could do with a new packing I reckon. It is riveted together of course. Anyone know if that packing is 'universal' and fit this tap? Before I destroy it? Thanks
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Offline 2wheels

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Re: 78 750F2 Fuel tap repair
« Reply #1 on: June 18, 2022, 12:03:42 PM »
I had a 78 F3 and had to repair the fuel tap.  I was able to drill the rivet top off, just be carefull and don't remove any metal that doesn't have to be removed.
Then the moving part (the handle) will come off.
I used a (I think) 6-32 tap drill to drill down where the rivets are.  ( a drill press made that easier)  Then tap 6-32.
No need to destroy anything.  The fuel tap can be put back together, as it was, except the rivets are gone and the 6-32 screws are holding it together.
I bought an ebay tap that looked similar (there is some risk it may be different) and removed its rubber section.  And installed it in my original tap.
Worked fine.
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1970 CB750 K0 (I can't believe I tossed my duck tail seat in the trash 30 years ago)

Offline brianc

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Re: 78 750F2 Fuel tap repair
« Reply #2 on: June 19, 2022, 12:02:38 AM »
Thanks, I'm OK with not destroying it, drill and tapping is the easy bit. Does the  packing look like the 350F one?
I would have the original to play with but I had to replace it coz some dropkick stole it off the bike.
While it was parked.
While it was full of fuel.
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Offline bryanj

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Re: 78 750F2 Fuel tap repair
« Reply #3 on: June 19, 2022, 03:09:13 AM »
No its different
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Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

Remember "Its always in the last place you look" COURSE IT IS YOU STOP LOOKIN THEN!

Offline newday777

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Re: 78 750F2 Fuel tap repair
« Reply #4 on: June 19, 2022, 03:40:34 AM »
David Silver Spares in PA shows they have an aftermarket petcock available for $22

https://www.davidsilverspares.com/CB750F-SUPER-SPORT-1978-USA/
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Stu
Honda Parts manager in the mid 1970s Nashua Honda
My current rides
1975 K5 Planet Blue my summer ride, it was a friend's bike I worked with at the Honda shop in 76, lots of fun to be on it again
1976 K6 Anteres Red rebuilding project, was originally my brother's that I set up from the crate, it'll breath again soon!
Project 750s, 2 K4, 2 K6, 1 K8
2008 GL1800 my daily ride and cross country runner

Prior bikes....
1972 Suzuki GT380 I had charge of it for a year in 1973 while my friend was deployed and learned to love street riding....
New CB450 K7 after my friend returned...
New CB750 K5 Planet Blue, demise by ex cousin in law at 9,000 miles...
New CB750 K6 Anteres Red, to replace the totaled K5, I sold this K6 at 45k in 1983, I had heavily modified it, many great memories on it and have missed it greatly.....
1983 GL1100A, 1999 GL1500 SE, 1999 GL1500A

Offline brianc

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Re: 78 750F2 Fuel tap repair
« Reply #5 on: June 20, 2022, 02:59:47 AM »
OK thanks. Might go the DS way.
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