Author Topic: What did you do to your bike today ?  (Read 2995418 times)

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Offline PeWe

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Re: What did you do to your bike today ?
« Reply #27200 on: September 25, 2018, 12:50:13 pm »
Real original bikes in good shape with some patina is something special. A small scratch or dent from the 70's telling its story ;)
CB750 K6-76 1005cc JMR Billet block.
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline 70CB750

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Re: What did you do to your bike today ?
« Reply #27201 on: October 06, 2018, 07:12:45 am »
Changed the rear tire/tyre  ;D

Took apart swingarm and greased everything also the brake pedal pivot and caliper pins.

The tire was a #$%* to seat, i had to make an open chuck and find a bigger compressor but alĺ is well now.

Offline 70CB750

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Re: What did you do to your bike today ?
« Reply #27202 on: October 07, 2018, 05:29:44 pm »
Changed the front tire.

Offline 1motomedic

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Re: What did you do to your bike today ?
« Reply #27203 on: October 07, 2018, 07:44:21 pm »
Well I did more yesterday... but today I clean up pistons, labeled parts, and boxed things up for later :)

Offline whitjonw

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Re: What did you do to your bike today ?
« Reply #27204 on: October 08, 2018, 10:00:04 am »
Installed front brake system. Rebuilt caliper, new reproduction master cylinder, new hoses, new hard line, banjo bolts, etc.. Also installed front fender. Now I have a front brake...finally !!  8)
1973 Honda CB500 K2
1974 Honda CL200 Scrambler
1974 Honda CB750 K4
1976 Honda CB750 K6

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Offline Old Scrambler

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Re: What did you do to your bike today ?
« Reply #27205 on: October 11, 2018, 07:07:08 pm »
I swapped my original K3 shocks for a set of lightly used F2 units. They have heavier and longer springs which interfere a bit with the standard chainguard. I shimmed both of the outer cap-bolts with thick washers and now good to go. Test ride shows big improvement and should handle 2-up riding. Right now we are enjoying central Tennessee and heading toward Atlanta.
Dennis in Wisconsin
'64 Triumph Cub & '74 Honda CB750 Bonneville Salt Flats AMA Record Holder (6)
CB750 Classic Bonneville Racer thread - http://forums.sohc4.net/index.php/topic,135473.0.html
'63 CL72 Project(s)
'66 CL77 Red
'67 Triumph T100C
'73 750K3 Owned since New
'77 750F2 Cafe Project
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Offline Tews19

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Re: What did you do to your bike today ?
« Reply #27206 on: October 11, 2018, 07:08:33 pm »
I swapped my original K3 shocks for a set of lightly used F2 units. They have heavier and longer springs which interfere a bit with the standard chainguard. I shimmed both of the outer cap-bolts with thick washers and now good to go. Test ride shows big improvement and should handle 2-up riding. Right now we are enjoying central Tennessee and heading toward Atlanta.

Dennis, are you no longer in WI?
1969 Honda CB750... Basket case
1970 Honda CB750 survivor.

Offline Old Scrambler

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Re: What did you do to your bike today ?
« Reply #27207 on: October 12, 2018, 12:50:01 pm »
Been RV traveling with a trailer for almost 2-years...........sold the real estate but keep a 40 x 60 space in a warehouse for the bike-stash..........take a look at my Classic Bonneville Racer thread on the Competition page.........was at Rockerbox and won best race bike with my Triumph.........Mama Tried has invited me with both bikes to their Milwaukee show but no, we will be in Southern California.  Will return for Rockerbox in 2019. Last year we were in Alaska from May to September. I rode the Haul Road to Prudoe Bay on the Aprilia Pegasso. Now traveling with the K3 in the trailer as a celebration of 50 years on a CB750. I plan to return to Bonneville next August to go a little faster.
Dennis in Wisconsin
'64 Triumph Cub & '74 Honda CB750 Bonneville Salt Flats AMA Record Holder (6)
CB750 Classic Bonneville Racer thread - http://forums.sohc4.net/index.php/topic,135473.0.html
'63 CL72 Project(s)
'66 CL77 Red
'67 Triumph T100C
'73 750K3 Owned since New
'77 750F2 Cafe Project
2020 ROYAL ENFIELD Himalayan

Offline Terry in Australia

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Re: What did you do to your bike today ?
« Reply #27208 on: October 13, 2018, 01:55:21 am »
Well to quote the late, great Billy Thorpe, (here in the cooler part of Oz)  "It's almost summer, and I can almost feel that sweet sunshine, shining down on this heart of mine!"


Anyway, Spring has sprung, and a young mans thoughts turn to his oldest love, his redneck K2 that's been languishing in the garage for far too long. I didn't get outside until midday, but as soon as I did, I knew what I'd be doing today. One of the pieces of "unfinished business" was sorting the carbs. If you guys have been following this holy thread, you may recall I was having carb issues, and had swapped at least 3 sets of carbs on and off this bike, with less than happy results. I rolled the dusty old beast out into the sunshine.

Terry's Redneck Saturday by Terry Prendergast, on Flickr

The first set were the cleanest (as opposed to "the first cut is the deepest", with apologies to Cat Stevens) but there was a crack in the body of one, and after patching the crack with liquid steel I was rewarded with fuel pissing out of them, so I tried (for not long) some K0 carbs (what a fcuking nightmare they are!) and some other carbs that I'd soaked in simple green for so long they almost went black! Ooops........

Anyway, none of them worked well, so today I decided to properly repair the first, cracked set, by swapping in a whole new carb body that I had hanging around. It took me a little while to locate the spare set of carbs, I really must clean up my garage one day! Anyway I found them, and the fun began! 

This was the damaged carb.

Terry's Redneck Saturday 8 by Terry Prendergast, on Flickr

The carbs have been off the rack before because the screws weren't that tight, and someone has scratched the numbers 1-4 on the bodies. Maybe for cleaning? Dunno, but they were immaculately clean. Luckily enough, so was the one I swapped in. I'd destroyed a nice clean set of carbs years ago when I broke a float post trying to remove the pin, so being the hoarder that I am, I kept it all for a rainy day, and today was that day. (but no rain)

Terry's Redneck Saturday 3 by Terry Prendergast, on Flickr

It wasn't hard to swap one body in after undoing all the screws on the backing plate, so all I needed to do was swap in all the other gubbins, and blow all the other carbs through with compressed air to make sure there were no blockages.

Terry's Redneck Saturday 4 by Terry Prendergast, on Flickr

I adjusted all the float levels and noticed that the little spring loaded pin in one float valve was very slow to return when depressed, and remembered that the corresponding carb would leak fuel the first time around, so I swapped it out for what looked like a better one in my spares box. I finished putting it all together, reinstalled the carbs, turned on the fuel, and it pissed out everywhere! Fcuk! I tapped all the float bowls, but to no avail, so I turned the fuel back off, dropped the float bowl on that carb, swapped out the float valve with yet another one, reassembled the carb, turned the fuel back on, and this time, no leaks. Woohoo!

I fired the bike up, and it seems to be running nicely. I don't want to get too excited in case I jinx it, but by the time I'd gotten this far it was getting late, so I put the tools away and parked it in my driveway in anticipation of a nice ride tomorrow. In the last 2 months I've lost 66 pounds, (my kevlar lined jeans are finally a great fit!) so I'm expecting (or at least hoping for) some added performance from the old girl, hopefully it won't let me down! Cheers, Terry. ;D

Terry's Redneck Saturday 7 by Terry Prendergast, on Flickr     
[/quote]
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline ekpent

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Re: What did you do to your bike today ?
« Reply #27209 on: October 13, 2018, 04:28:38 am »
 Be fun now to watch your spring and summer antics now Terry as our leaves are falling here and doom and gloom of winter is slowly approaching. Congrats on your new program and the loss of 66 lbs so far !  Enjoy your spring.

Offline Terry in Australia

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Re: What did you do to your bike today ?
« Reply #27210 on: October 13, 2018, 06:55:14 am »
Thanks Eric, I really need to finish putting my ZZR1100 back together but the Z1000 dragbike has been such a distraction, all my time and spare cash (and there hasn't been too much of that after paying for the recent surgery) has been absorbed into the Z1 Street Beast project, but if you're happy to be entertained by a massive dose of "Formula K" this winter (summer here) keep reading my thread updates mate! Cheers, "Slim"..... ;D
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline Vintageguy

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Re: What did you do to your bike today ?
« Reply #27211 on: October 13, 2018, 07:38:51 am »
I finally fixed the dual horns on my 1978 CB750 Super Sport and I must say, what a royal pain in the butt. Mine were wired into the nasty Ungo Box that was a special extra that came with my bike last May. Installed sometime in the early to mid-1980's this thing is the devil's own invention. I've even heard these things can quit on the road without notice. Some day soon I'm going to work up the nerve to disconnect this damn thing entirely! For now however, I'm caught up and the bike even starts on the starter now! (Keeping my fingers crossed). I'm no electrician but I'd rather try and fail than not try at all. Thank you for listening.

Offline Old Scrambler

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Re: What did you do to your bike today ?
« Reply #27212 on: October 13, 2018, 07:54:13 am »
Terry........Congrats on the weight-loss......I know it will make the bike go faster ;)
Dennis in Wisconsin
'64 Triumph Cub & '74 Honda CB750 Bonneville Salt Flats AMA Record Holder (6)
CB750 Classic Bonneville Racer thread - http://forums.sohc4.net/index.php/topic,135473.0.html
'63 CL72 Project(s)
'66 CL77 Red
'67 Triumph T100C
'73 750K3 Owned since New
'77 750F2 Cafe Project
2020 ROYAL ENFIELD Himalayan

Offline PeWe

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Re: What did you do to your bike today ?
« Reply #27213 on: October 13, 2018, 07:57:51 am »
Had a nice ride today verifying correct fuel screw setting which is seen at Idle and before 3000 rpms. Same fuel screw setting with more open 4-2-1 than my rather open 4-4. Really good carb response from 3-4000 rpm at WOT.
Ignition is not perfect causing erratic idle. Will do that tomorrow starting with correct 2:3 dwell which is a little bit more advanced than 1:4.
I hope I'll get a dyno time later this month. Bike runs great now.  Feels like 3 digits whp :)
CB750 K6-76 1005cc JMR Billet block.
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline seanbarney41

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Re: What did you do to your bike today ?
« Reply #27214 on: October 13, 2018, 09:19:58 am »
I finally fixed the dual horns on my 1978 CB750 Super Sport and I must say, what a royal pain in the butt. Mine were wired into the nasty Ungo Box that was a special extra that came with my bike last May. Installed sometime in the early to mid-1980's this thing is the devil's own invention. I've even heard these things can quit on the road without notice. Some day soon I'm going to work up the nerve to disconnect this damn thing entirely! For now however, I'm caught up and the bike even starts on the starter now! (Keeping my fingers crossed). I'm no electrician but I'd rather try and fail than not try at all. Thank you for listening.
forgive my un-aussieness, but I am perplexed as to what exactly an "ungo box" is...
If it works good, it looks good...

Offline Stev-o

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Re: What did you do to your bike today ?
« Reply #27215 on: October 13, 2018, 11:25:44 am »
  I am "thinning out the herd"! Sold around 10 bikes so far this fall...


Thinning the herd?!





Eric actually sold bikes?!  Has Hell frozen over??

'74 "Big Bang" Honda 750K [836].....'71 Honda 750K project.....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline Vintageguy

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Re: What did you do to your bike today ?
« Reply #27216 on: October 13, 2018, 01:09:44 pm »
Seanbarney41-An Ungo Box is a first generation vehicle secuity system which was produced for a few years in the US (I think) back in the 1980's and 1990's. I think the company went under sometime in the early 1990's but not sure. A good number of these contraptions ended up in Porsches and other high-end cars in an effort to stem theft. Unfortunately, from what I've read and heard, they thawarted an equal number of owners whose mercury switches would detect motion when on the road! So far mine has been nothing but a PITA and it's days are numbered, nostalgia or no.   

Offline seanbarney41

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Re: What did you do to your bike today ?
« Reply #27217 on: October 13, 2018, 01:39:50 pm »
Wow, never heard of that before...thanks
If it works good, it looks good...

Offline Bankerdanny

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Re: What did you do to your bike today ?
« Reply #27218 on: October 14, 2018, 08:06:49 pm »
I found out what my Kerker muffler sounds like without the baffle, which blew out somewhere on the highway this afternoon.

It actually sounds pretty good, but I will still get a replacement for it anyway as I think its a little loud for riding through the residential area where I live.
"The problem with quotes on the Internet is that you never know if they're true" - Abraham Lincoln

Current: '76 CB750F. Previous:  '75 CB550F, 2007 Yamaha Vino 125 Scooter, '75 Harley FXE Superglide, '77 GL1000, '77 CB550k, '68 Suzuki K10 80, '68 Yamaha YR2, '69 BMW R69S, '71 Honda SL175, '02 Royal Enfield Bullet 500, '89 Yamaha FJ1200

Offline beemerbum

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Re: What did you do to your bike today ?
« Reply #27219 on: October 14, 2018, 08:10:18 pm »
Filled with non-ethanol premium and lubed the chain. Then rode the hell out of it

Offline Jessamine

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Re: What did you do to your bike today ?
« Reply #27220 on: October 14, 2018, 09:30:03 pm »
Made a valve spring compressor out of a C-clamp and a socket, and pulled all the valves on my F0. 6 of the 8 are bent. Thanks PO!

1975 CB750F
1986 CN250
2005 KLR650


Offline Jerry Rxman Griffin aka MuthaF'er

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Re: What did you do to your bike today ?
« Reply #27221 on: October 15, 2018, 07:37:55 am »
Hey Danny, the Kerker competition baffle is nowhere nearly as obnoxiously loud as I had anticipated.
As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline richmagee7

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Re: What did you do to your bike today ?
« Reply #27222 on: October 15, 2018, 11:48:45 am »
It was yesterday, but what I did to my bike was anything I could to get some respite from a birthday party for my wife's one-year old grandson.  Too many little ones at once for me, so I snuck off and lubed and adjusted the chain, aired the tires, cleaned the plugs and wiped away some grime.  It was VERY, VERY therapeutic.  Rejoined the party in time for cake.

Offline Bankerdanny

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Re: What did you do to your bike today ?
« Reply #27223 on: October 15, 2018, 02:22:17 pm »
Hey Danny, the Kerker competition baffle is nowhere nearly as obnoxiously loud as I had anticipated.

I will replace it later this Winter when it goes down for its nap. My Caddy needs new shocks and front brakes, so it gets priority for the next vehicle parts spend.

The 750 muffler fix will join the new paint, installation of my Lesters, and (probably) a new header over the Winter. Come Springtime I am anticipating have a completely different looking bike.
"The problem with quotes on the Internet is that you never know if they're true" - Abraham Lincoln

Current: '76 CB750F. Previous:  '75 CB550F, 2007 Yamaha Vino 125 Scooter, '75 Harley FXE Superglide, '77 GL1000, '77 CB550k, '68 Suzuki K10 80, '68 Yamaha YR2, '69 BMW R69S, '71 Honda SL175, '02 Royal Enfield Bullet 500, '89 Yamaha FJ1200

Offline Athame57

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Re: What did you do to your bike today ?
« Reply #27224 on: October 16, 2018, 12:22:06 pm »
I did lots of things...but my front brake is STILL squeaking!  ::)
I brake for animals!