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A Nice Find With An Unexpected Twist


tomk1960

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Looks pretty sloppy to me. You said that the front chain was much tighter, right? With that much slack in the chain, I can imagine that in time it will jump a tooth (or more) at high RPMs and really mess things up.

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I haven't had a cam chain in 29 years but that does look loose. I can't speak to the POKE but just use the 2 feeler gauges and you'll be fine. The cam tool was a phantom cure for some in the industry. You don't need it. Just adjust a pair of valves with 2 gauges at once then spin the motor around once and recheck. I recheck often so it takes me awhile. There was a revision on the tolerances for clearance on the R and maybe for the 750 as well. Some have said the manual's clearance is too tight but don't quote me. I'll see if I can find the info I read.

I think the old clearance was .005" and the new one is .006" but that was for my R and the Mags/Sabs. Someone hopefully will chime in to confirm or not.

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  • 2 weeks later...
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Congrats! Tell him to go buy some lottery tickets.

No kidding! He's picking up a red VF750F next week for $300. It has under 21K on the clock and looks to be in decent shape.

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Congrats! Tell him to go buy some lottery tickets.

No kidding! He's picking up a red VF750F next week for $300. It has under 21K on the clock and looks to be in decent shape.

OK, I'll go $325 on it w/o even seeing it! :--)

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Yest its true. I have a line on this bike and it can be had for $300. The seller has had the bike for years sitting in a garage gathering dust. I don't know if it runs or what it needs (hopefully not CCTs) but for $300.......

-Michael

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Maybe someone here knows the history of these bikes' designation as "V45" and can explain more about their history. A displacement of 750cc is very close to 45 cubic inches. Was that Honda's way of appealing to Western markets that thought in cubic inches rather than liters? That would be an interesting detour by Honda in the history of their nomenclature.

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Maybe someone here knows the history of these bikes' designation as "V45" and can explain more about their history. A displacement of 750cc is very close to 45 cubic inches. Was that Honda's way of appealing to Western markets that thought in cubic inches rather than liters? That would be an interesting detour by Honda in the history of their nomenclature.

I think you are correct Cogswell.

The 1100cc Magnas were also known as V65 engine variants. According to my unit converter app, 65 cubic inches is 1065.1592 cubic centimeters.

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So I pulled the cam towers off the back two cylinders and I checked the cams and they look to be serviceable no major scoring or wear on the lobes and the rocker arms looked fine too. Be for I took the towers off the checked the clearances and they were all spec too. I'm off to Dallas this week to do a little flying at Flight Safety in their simulator then off to Grand Prairie to complete my annual FAR 135 check ride. I won’t have time to do much work but when I get back I’ll post some updates on the ’83 and let everyone know how the ’84 turns out.

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So lets talk about the problem with the cam chain tensioners. So I bought a brand new oem bracket assembly (14510-MB0-874) and I managed to find a new oem tensioner (14514-MB0-000). Two questions:

1. Is the bracket assebly part of the problem? Its been superceeded a few times.

2. Is there or what is the difference between tensioner 14514-MB0-000 and 14514-MB0-010?

The install is pretty straight forward. So it should be done this week. I'll take any input from parts to the work.

Thanks

-Michael

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  • 2 weeks later...

I installed the new bracket assembly and cam chain tensioner. Then I reset all the valves to .006, refilled the coolant crossed my fingers, and pressed the starter. It sounded great and reved perfectly. Now I'm moving on to the fork seals and puting it all back together.

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  • 2 weeks later...

So its done.

Complete tune up.

Front and rear master cylinders rebuilt.

Brakes bled and filled with DOT3.

Clutch master cleaned and rebuilt.

Carburetors removed, disassembled and cleaned.

All jets individually cleaned.

Carburetor floats reset.

New float bowl gaskets installed using Gasgacinch.

Rear Cam chain tensioner and assembly replaced with OEM.

New valve cover gaskets and bolt mounting rubber.

Forks disassembled, cleaned, reassembled, filled with ATF.

Tubes polished.

Dive unit cleaned and rebuilt with new dust boots.

New fork seals installed.

Radiator fans fixed and work perfectly, temp tested with laser temp gauge.

All valves adjusted to .006.

Entire ignition system tested and found to be within specs.

All body work cleaned and repaired where needed.

It could still use a bit more elbow grease and some wax but it runs great.

Now what do I do with it?

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looks good, now get out and get riding

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It sure rounds out the history of Honda collection you have...I say keep it. It may not find a better home.

...and sell me the red one! :wink:

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I just took Michael's bike for a ride and it runs great. No chain noise, nice and smooth, and plenty of power for a 750. The brakes are awesome and it shifts nicely. He did a great job getting this back into noticeable condition. Now I'm even more motivated to finish my VF750.

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  • 3 weeks later...

So I noticed the front end dragging a bit after I installed new wheel bearings so I decided to completely rebuild the front brake system...with the help of TomK. We had an awesome time and the bike is running great again. I might actually like this bike after all. :happy:

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It certainly is nice to have Tom on your friends list. He can't walk past a faded, spongy master cylinder without getting itchy.

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It certainly is nice to have Tom on your friends list. He can't walk past a faded, spongy master cylinder without getting itchy.

I have to admit that I enjoy rebuilding the brake systems on these bikes. It's very satisfying to go completely through them and end up with a nice firm lever and plenty of stopping power. This job went very smoothly and it was fun doing them with Michael. We've worked on a number of bikes together and always enjoy it. We were talking about how working on bikes with a friend is always a good time, but try explaining it to someone who doesn't know how to hold a wrench. They just can't understand.

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Those photos remind me that I've got to rebuild the brakes on my 6th gen. I'm dreading it, to be honest

The photos of clean, happy pistons give me some motivation

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