Topic: 48 years on a '75 CB750F

[ofreen]

Jerry, how many numbers are between your bike and mine?

[Jerry Rxman Griffin aka MuthaF'er]

CB750K0 Super Sport was the initial designation apparently. A kid at the Honda dealer couldn't find a CB750F in his parts fiche, just the K0 SS designation, and wanted to argue that there is no such thing as a 1975 CB750F. This was in modern times maybe 10+ years ago? I told him it was older than he was and I bought it new so I helped him look it up.

Build 1/75 CB750F-1001954 maybe? Engine 1606? Or vice versa. Just from memory. Still wintering in the VI until the end of the month then I can give exacts. Purchased 4/75.

Did yours come with the aluminum rear master vs the nylon cup? The serial number is close to the change over.

[ofreen]

CB750K0 Super Sport was the initial designation apparently. A kid at the Honda dealer couldn't find a CB750F in his parts fiche, just the K0 SS designation, and wanted to argue that there is no such thing as a 1975 CB750F. This was in modern times maybe 10+ years ago? I told him it was older than he was and I bought it new so I helped him look it up.

Interesting, I've never heard of a CB750K0 SS designation.  That wouldn't be confusing at all.   I found that to be the case many years ago, no 1975 CB750F in the microfiches.  It is still like that in many online resources.  You won't find a 1975 CB750F at South Sound Honda.  I've always gotten around that by using the parts list for the '76.

Build 1/75 CB750F-1001954 maybe? Engine 1606? Or vice versa. Just from memory. Still wintering in the VI until the end of the month then I can give exacts. Purchased 4/75.

I'll be interested to hear what you find when you get back. 

Did yours come with the aluminum rear master vs the nylon cup? The serial number is close to the change over.

Aluminum cap, plastic reservoir.  By some miracle it hasn't crumbled yet.

One anomaly with my bike I've mentioned before is that the VIN plate was never mounted to the steering head.  It has always been inside the right side cover.  I've never heard of another bike like that.

[Jerry Rxman Griffin aka MuthaF'er]

I will also look to see which SN they changed the rear master. Factory parts manual. May be after 10000? I found a NOS Gold Wing master and swapped the reservoir. Same. The hose mounting is different. Come to think about it I found a NOS aluminum master and installed it on the bike (blasphemy) then did the swap of reservoirs for the second bike. The original was faded and the NOS black just looked much better with everything else being new. And with that said I will also tell that I found an 77/78 NOS ignition switch set and installed it then found a NOS 75/76 ignition set and put it on the second bike. Guilt and telling will force me to swap them. No spring-loaded flap and the keys are shaped differently. If I wasn't so lazy I'd install the NOS cover thingy on the rear sprocket. Still haven't figured out it's purpose.

The 75's were built from January into the 2nd week of April only

If I forget please remind me. Home 3/28 in time for the 50 year anniversary ride.

[ofreen]

Thanks, will do.

[HondaMan]

If I wasn't so lazy I'd install the NOS cover thingy on the rear sprocket. Still haven't figured out it's purpose.

If you mean the stamped sheetmetal 'cover' that is bolted to the sprocket: Honda put that there to try to catch the rear chain if/when if fell off the front sprocket, to avoid locking up the rear wheel into a skid. The idea is to catch the chain on the sheetmetal rim instead of letting it wrap up.

It actually works, too.

Trouble is, it also limits the OEM rear sprockets to being used on just 1 side (according to Honda, anyway), the recessed side out, to fit in the disc. However, mine has run for 50+ years with that sheetmetal disc on top of both sides of the thinned Honda sprocket, and on one non-dished aftermarket rear sprocket, with no issues.

[grcamna2]

Greg, that's a very durable and reliable CB750F0.
I like to up-keep my good machines and make' em last too 
I'm not much of a 'bike flipper'.

[scottly]

If I wasn't so lazy I'd install the NOS cover thingy on the rear sprocket. Still haven't figured out it's purpose.

It's purpose, at least from what I've gathered, is to help when attaching the wheel assembly when an endless chain without a master link is used. The chain fits over the thingy, then after the wheel is mounted on the swing-arm with the axle all the way forward, the chain is lifted off the thingy and onto the sprocket. Makes sense to me.

[ofreen]

Here’s an old discussion about that plate here-

http://forums.sohc4.net/index.php?topic=79321.0

I’ve always kept it on just because.
 
I ordered a BT-46 tire, tube and rim strip that should be here Sunday. Maybe it will take the bike to 180,000.

[ofreen]

Another year gone by already and today is the 48th anniversary of me buying the 750.  As usual, I took a ride to celebrate the big day.  I got a bit of a late start, rolling the bike out of the shop about 1PM.  There were buildups and showers all quadrants, but it looked a little better north so that's the way i headed, after going into the house for the rain gear.  I got about 10 miles out and the rain caught up to me, so I stopped to put it on.  I ended up on Willow Creek Road to Pearl Road, then down old Highway 55 to Horseshoe Bend.  Riding in the rain can be pleasant, and it had slacked off by the time I got to the gravel roads, so they weren't too muddy and there was no dust. Also as usual, here are a few scenery pix with my bike parked in the way.  I was out almost 5 hours and only went 108 miles due to all the stopping for pix and some cow trailing.  Bike ran perfectly as usual.







A very good day on the faithful 750.  I sold my 6 speed Challenger RT yesterday when someone made me an offer I couldn't refuse.  I am deep into seller's remorse today.  It was a beautiful and fun car.  What was I thinking?  Nevertheless, at the risk of having the same emotion all over again, My '75 CB750F remains for sale, current price $172, 456.30.

[newday777]

Congratulations Greg
As usual even the cloudy days out in the expanse of the western skies highlights the high desert terrain.

[MRieck]

CB750K0 Super Sport was the initial designation apparently. A kid at the Honda dealer couldn't find a CB750F in his parts fiche, just the K0 SS designation, and wanted to argue that there is no such thing as a 1975 CB750F. This was in modern times maybe 10+ years ago? I told him it was older than he was and I bought it new so I helped him look it up.

Build 1/75 CB750F-1001954 maybe? Engine 1606? Or vice versa. Just from memory. Still wintering in the VI until the end of the month then I can give exacts. Purchased 4/75.

Did yours come with the aluminum rear master vs the nylon cup? The serial number is close to the change over.

I have run into that...told the bike doesn't exist....several times. Always by somebody much younger too. My 75 is about 3993 if I remember correctly....different engine in it. Sucks I don't have the aluminum build tag...removed about 45 years ago when the frame was powder coated the first time.

[newday777]

CB750K0 Super Sport was the initial designation apparently. A kid at the Honda dealer couldn't find a CB750F in his parts fiche, just the K0 SS designation, and wanted to argue that there is no such thing as a 1975 CB750F. This was in modern times maybe 10+ years ago? I told him it was older than he was and I bought it new so I helped him look it up.

Build 1/75 CB750F-1001954 maybe? Engine 1606? Or vice versa. Just from memory. Still wintering in the VI until the end of the month then I can give exacts. Purchased 4/75.

Did yours come with the aluminum rear master vs the nylon cup? The serial number is close to the change over.

I have run into that...told the bike doesn't exist....several times. Always by somebody much younger too. My 75 is about 3993 if I remember correctly....different engine in it. Sucks I don't have the aluminum build tag...removed about 45 years ago when the frame was powder coated the first time.

Have another made to order Mike

http://forums.sohc4.net/index.php?topic=168129.0

[Jerry Rxman Griffin aka MuthaF'er]

CB750K0 Super Sport was the initial designation apparently. A kid at the Honda dealer couldn't find a CB750F in his parts fiche, just the K0 SS designation, and wanted to argue that there is no such thing as a 1975 CB750F. This was in modern times maybe 10+ years ago? I told him it was older than he was and I bought it new so I helped him look it up.

Build 1/75 CB750F-1001954 maybe? Engine 1606? Or vice versa. Just from memory. Still wintering in the VI until the end of the month then I can give exacts. Purchased 4/75.

Did yours come with the aluminum rear master vs the nylon cup? The serial number is close to the change over.

Greg, congratulations to you and your best friend on another anniversary.

Good thing you posted so I can remember to respond from previously. "Build 1/75 CB750F-1001954 maybe? Engine 1606?" Numbers right but vice versa. Bike is 1606 and engine 1954. I have something somewhere that tells me at what serial numbers parts/parts numbers change but can't find it. From my old brain I seem to recall the rear masters changed around 10,000. Anyway.... cheers my friend.   

[Stev-o]

Congrats on another year, Greg

[MauiK3]

Good to hear, may you get many more years with it.

[HondaMan]

A very good day on the faithful 750.  I sold my 6 speed Challenger RT yesterday when someone made me an offer I couldn't refuse.  I am deep into seller's remorse today.  It was a beautiful and fun car.  What was I thinking?  Nevertheless, at the risk of having the same emotion all over again, My '75 CB750F remains for sale, current price $172, 456.30.

Looked like a nice ride!
I've found that riding newer bikes is a newer experience, but not as relaxing (the bikes seem 'high strung' now?) as my old friend.
Maybe it's just me: I've raced, toured, commuted and just plain ridden this one so long now that others don't seem friendly, in comparison? Especially automatics.

[andy750]

Congratulations Greg
As usual even the cloudy days out in the expanse of the western skies highlights the high desert terrain.

Well said Stu - Ill never get bored of seeing Gregs bike in those bike sky photos  Great update!

[ofreen]

I am back last night from a ride over to the Black Hills, so sorry for the late replies.

Congratulations Greg
As usual even the cloudy days out in the expanse of the western skies highlights the high desert terrain.

Thanks Stu, yes, the light was interesting that day.

CB750K0 Super Sport was the initial designation apparently. A kid at the Honda dealer couldn't find a CB750F in his parts fiche, just the K0 SS designation, and wanted to argue that there is no such thing as a 1975 CB750F. This was in modern times maybe 10+ years ago? I told him it was older than he was and I bought it new so I helped him look it up.

Build 1/75 CB750F-1001954 maybe? Engine 1606? Or vice versa. Just from memory. Still wintering in the VI until the end of the month then I can give exacts. Purchased 4/75.

Did yours come with the aluminum rear master vs the nylon cup? The serial number is close to the change over.

Greg, congratulations to you and your best friend on another anniversary.
Good thing you posted so I can remember to respond from previously. "Build 1/75 CB750F-1001954 maybe? Engine 1606?" Numbers right but vice versa. Bike is 1606 and engine 1954. I have something somewhere that tells me at what serial numbers parts/parts numbers change but can't find it. From my old brain I seem to recall the rear masters changed around 10,000. Anyway.... cheers my friend.   

Thanks Jerry.  That might be an interesting piece of info to put in the reference section of the forum if you ever come across it.

Congrats on another year, Greg

Thanks as always, Stev-o.

Good to hear, may you get many more years with it.

I am going to give it my best shot.  I have a plan for the bike that I will mention here if it looks like it will come to fruition.  It will mean a lot more miles on it.  It had its 50th birthday this year, but 50 years of me having it is less than 2 years away at this point.

Looked like a nice ride!
I've found that riding newer bikes is a newer experience, but not as relaxing (the bikes seem 'high strung' now?) as my old friend.
Maybe it's just me: I've raced, toured, commuted and just plain ridden this one so long now that others don't seem friendly, in comparison? Especially automatics.

It was, even a ride down to the hardware store is always an event.  It is always ready to go.  It is easy to take for granted after all this time that it will always be there. But whenever I ride it I think how remarkable it is to still be riding it after all this time and it still seems to be the same as ever.  (Except it weeps a little oil here and there these days.  Nothing a quick wash doesn't take care of.)  I like newer bikes, but there is nothing else quite like a CB750.  Being a little under square has something to do with it, no doubt.  (And it has to be said, not having a lot of power } Plus it is a good looking engine.

Congratulations Greg
As usual even the cloudy days out in the expanse of the western skies highlights the high desert terrain.

Well said Stu - Ill never get bored of seeing Gregs bike in those bike sky photos  Great update!

Thanks Andy, I always look forward to the photos you post.