Author Topic: 500/550/650's that followed me home  (Read 129375 times)

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Offline rb550four

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Re: 500/550/650's that followed me home
« Reply #925 on: August 13, 2025, 12:57:16 PM »
  So it's August 13 th. I have a new replacement knee to replace the failed replacement knee going in tomorrow morning.
The first replacement was a failure two Februarys ago when I got  it . Lotsa 8 week rehabs with no benefit, been forced to get around on a cane , it's been painful and ain't no fun to get around... But the summer has been sunny and hot and I've been riding  50 miles or more every day , even on some rainy days  too. Haven't ridden this much since I was a kid.
   I figured if I have to crawl to a machine and can get on it, I'm going for a ride, and that has been the best therapy so far. Hoping  this time is a charm.
 
A few Honda 500's, a few Honda 550's, a few Honda 650's, '72 cb 450, a couple 500/550/650 hybrids, and 2001 750. 
  550 Snowbike -Somebody had to do it.
  http://forums.sohc4.net/index.php/topic,101678.0.html             
http://forums.sohc4.net/index.php/topic,137317.msg1550907.html#msg1550907

Offline Little_Phil

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Re: 500/550/650's that followed me home
« Reply #926 on: August 14, 2025, 07:26:41 AM »
Sorry to hear about your knee. Hope it's a better replacement this time. Was this the problem?
https://www.bbc.co.uk/news/articles/cqxgen498ejo

Offline MauiK3

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Re: 500/550/650's that followed me home
« Reply #927 on: August 14, 2025, 07:44:24 AM »
Sorry to hear about your knee. Hoping for the best for you.
1973 CB 750 K3
10/72 build Z1 Kawasaki

Offline rb550four

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Re: 500/550/650's that followed me home
« Reply #928 on: August 17, 2025, 09:02:39 AM »
Thanks,  I'm home resting now, got 1st PT tomorrow . i made every riding day count this year and this year's season is over for me now, but I'm looking forward to good things that may be able to happen next.
A few Honda 500's, a few Honda 550's, a few Honda 650's, '72 cb 450, a couple 500/550/650 hybrids, and 2001 750. 
  550 Snowbike -Somebody had to do it.
  http://forums.sohc4.net/index.php/topic,101678.0.html             
http://forums.sohc4.net/index.php/topic,137317.msg1550907.html#msg1550907

Offline rb550four

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Re: 500/550/650's that followed me home
« Reply #929 on: October 27, 2025, 02:32:36 PM »
   so last week I came across an early 750 tank , I don't have an early 750 , but you never know what could be coming down the road ,so I grabbed it  you know , just in case.
   It was obvious that it was a barn for a while, maybe longer, and had some Bondo on it that was cracking that would need repair.  It hadn't any tank seal in it so it should clean up without great difficulty. So just sand out the Bondo , pull  the dent as well as I can ....maybe a overall Bondo coat if it needed it. Sounds like the plan .
   So I got out the sander and started to make dust. The cracked part that I thought  I'd just sand out was getting deeper and wider than expected, but this has happened on a couple other tanks over the years, not scared , continued until it was all metal showing, the end was 4x4 and maybe an inch in deep. That took a while to pop out from the
inside .  No holes, that's good. might as well sand out the rest. This tank was an ugly red, but it started life blue. I was expecting to find numerous colors and was pleased when I didn't but there was more Bondo both sides under the badges ,
, and deep dents on the long angles across the top front to the back back of the tank...the part with 2 defining lines that won't be easy to mimic with a really light coat of new Bondo... may end up 2 light coats, got most of the dent almost all the way out  but there is 3 less than a dime size dings, that I just won' t be able to get all the way out . But I felt lucky to get most of them out ... looked like it fell down the stairs a few times before, just looks like some unlucky garage dings now, I think I can make them disappear.
   Now that the top of the tank is ready for an overall coat, thought I might start sanding out the underside and make sure there is no tiny rust holes that would be a problem  later. I've done tons of Honda tanks over the years but never an early 750 tank. I was surprised to see how rolled and twisted looking these early ones are on the bottom side. It's like what , they only make them Friday? Maybe the tank guy was sick that day? The 20 ton press broke just before this tank was made? Somebody was in a hurry? shot some primer on the bottom  to see if you all find this type of craftmanship on all early 750 tanks or if this one is special. Going to send photos  soon.
A few Honda 500's, a few Honda 550's, a few Honda 650's, '72 cb 450, a couple 500/550/650 hybrids, and 2001 750. 
  550 Snowbike -Somebody had to do it.
  http://forums.sohc4.net/index.php/topic,101678.0.html             
http://forums.sohc4.net/index.php/topic,137317.msg1550907.html#msg1550907

Offline rb550four

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Re: 500/550/650's that followed me home
« Reply #930 on: October 27, 2025, 02:52:19 PM »
 Pics
A few Honda 500's, a few Honda 550's, a few Honda 650's, '72 cb 450, a couple 500/550/650 hybrids, and 2001 750. 
  550 Snowbike -Somebody had to do it.
  http://forums.sohc4.net/index.php/topic,101678.0.html             
http://forums.sohc4.net/index.php/topic,137317.msg1550907.html#msg1550907

Offline rb550four

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Re: 500/550/650's that followed me home
« Reply #931 on: October 27, 2025, 02:58:24 PM »
more pics    Is this tank supposed to look like this on the underside? the2 round areas look like they had some overabundance of steel as do the areas below the front mounts,  creases down the spine just looks like a mistake to me. none of my 450 s 500 s , 550 s , 650 s have sloppy looking   pressed  steel undersides. This normal?
« Last Edit: October 27, 2025, 03:14:13 PM by rb550four »
A few Honda 500's, a few Honda 550's, a few Honda 650's, '72 cb 450, a couple 500/550/650 hybrids, and 2001 750. 
  550 Snowbike -Somebody had to do it.
  http://forums.sohc4.net/index.php/topic,101678.0.html             
http://forums.sohc4.net/index.php/topic,137317.msg1550907.html#msg1550907

Offline newday777

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Re: 500/550/650's that followed me home
« Reply #932 on: October 27, 2025, 03:54:33 PM »
Yes the 750 tanks all look like that 1971 up through 76(75 & 76 have a different petcock mounting bung)

This blue tank bottom is a 1975

You actually have a 75/76 tank.
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 newday777

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Re: 500/550/650's that followed me home
« Reply #933 on: October 27, 2025, 03:57:27 PM »
Notice the 69-74 petcock is on the opposite side of the tank and use 2 screws to mount the petcock as compared to your tank having the raised threaded bung.
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 rb550four

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Re: 500/550/650's that followed me home
« Reply #934 on: October 27, 2025, 05:42:07 PM »
Excellent!  Thank you for the info gentlemen , I had no idea what year this tank was, I haven't been a 750 guy, and thought that if the underside was stamped that poorly compared to other Honda tanks of the era that it must have been early.
  My mistake and I'm happy to know that it is a 75 with damage and not an earlier model that should have a proper rebuild.
    Thanks  guys.
A few Honda 500's, a few Honda 550's, a few Honda 650's, '72 cb 450, a couple 500/550/650 hybrids, and 2001 750. 
  550 Snowbike -Somebody had to do it.
  http://forums.sohc4.net/index.php/topic,101678.0.html             
http://forums.sohc4.net/index.php/topic,137317.msg1550907.html#msg1550907