Author Topic: I've been K0'd! (Read 201118 times)

edwardmorris · « **Reply #300 on:** September 11, 2015, 08:40:25 PM »

I don't think its all of them, just the early ones. K2 and later had a special "Washer Bolt" that went in its place for easier assembly. I had no trouble getting a 1/4" ratchet 10mm deep well socket in there to torque it down properly.

Don R · « **Reply #301 on:** September 13, 2015, 06:42:05 PM »

It always dripped a tiny bit around the chain. While cleaning the gasket surface behind the trans cover I noticed a small chip in the gasket surface of the block. I jb welded it and so far it seems to stay dry.
I rode it to the local abate meeting tonight, a couple guys noticed.

MoMo · « **Reply #302 on:** September 13, 2015, 06:51:57 PM »

Don, it is part 12 on this fiche http://www.motogrid.com/pages/oemparts?aribrand=HOM#/Honda/CB750K_A__MOTORCYCLE%2c_JPN%2c_VIN%23_CB750-1000001/CRANKCASE/CB750K-JPN-A/2Y143410AE14341022C

Don R · « **Reply #303 on:** September 14, 2015, 08:35:51 AM »

Thanks Larry, that's where it is. Nice to find out it's correct. We know the engine was out due to the chrome rocker cover.
I have the covers looking good and there's a new frame neck tag on the way for the diecast bike. I'll post some pics when it arrives. I put a guliari style seat on the diecast, the dragbike's not using it and it looks good there.

754 · « **Reply #304 on:** September 14, 2015, 09:06:42 AM »

I use a 10mm socket turned down thinner. A few places on the bike need that..the cam caps for one. Maybe the oil line bolt as well.... I think one more place on the bike..

edwardmorris · « **Reply #305 on:** September 14, 2015, 09:24:55 AM »

Quote from: 754 on September 14, 2015, 09:06:42 AM

I use a 10mm socket turned down thinner. A few places on the bike need that..the cam caps for one. Maybe the oil line bolt as well.... I think one more place on the bike..

If recent memory serves me right, then I think these are all the places

Four cylinder head positioning bolts (also have JIS + on their heads as its hard to get a standard socket in there)
Oil line bolt(s)
Oil pan bolt near that V shaped protrusion (also holds the neutral cable guide IINM)
Cam tower caps

The only place I used a turned down socket was the 12mm one on the connecting rods. That worked out great to torque down properly. The 1/4" ratchet 10mm socket worked fine without modification for all the above. The 3/8" ratchet one most definitely did not.

Don R · « **Reply #306 on:** September 16, 2015, 08:03:42 PM »

The neck tag for the diecast is a decal, only they sent 4 of them. I didn't read the fine print closely. I'll stick it to a trophy tag and mount it with the rivets.
The sandcast's dechromed covers leak oil, so far It's not cured. hmmm. I also own a shaved down 10mm socket.
I put the drag bike up on the overhead shelf, It's strapped to a block of wood so it won't tip. pictures coming.

The two 400F's get the handlebars and controls swapped, one 400f gets K0 bars again and my diecast 750 gets a set of 400F bars. One set of bars are repro and one set honda so it looks like a 4 bike handlebar swap. At least they have all been off recently.

Don R · « **Reply #307 on:** September 21, 2015, 05:32:28 PM »

The sandcast trans cover didn't have a dowell in the shift shaft location. I put one in but neglected to check the side cover hole. The dowell didn't fit into the hole and would not allow the cover to seal. Dowell hole drilled out, (deburred) now it fits, problem hopefully solved.

Don R · « **Reply #308 on:** March 24, 2016, 10:38:42 AM »

The K0's are mostly unchanged except for getting new bike covers. The hot rod bike is in the enclosed trailer for storage and the sandy is in the heated shop. I've already ridden it this year. The gas stored better with the stabil 360 and 2 stroke oil in it.
I did find a nice sunrise orange tank beautiful inside and decent but not perfect paint. I might drop it on the hot rod for a while.

RAFster122s · « **Reply #309 on:** March 24, 2016, 10:30:54 PM »

Quote from: Don R on June 25, 2015, 09:46:05 PM

No, but he was very interested. My 4 year old granddaughter was here, earlier she told her mom about the big brown truck, it brings Papa's cycle tools. It came today and she was here to help open the box. When her dad came to pick her up she said she couldn't go because we were going to work in the shop. Lol. I had to promise to let her help next time.

Haha! Don, you are raising her right while she is there with you. I love it. She will be an engineer or gearhead to have as a hobby and leave work to something she can leave at work.

Time for a bike with the sidecar and roll cage in the side car to keep her safe to put the grandma and her mom & dad's concern at bay...

Safety harness and intrusion protection of course...

Don R · « **Reply #310 on:** March 27, 2016, 10:43:51 PM »

She's almost 5 now and helped swap the seats on James K4 before it goes to England. She has her own guitar at my house, her and her little sister like to help me play. We're going to work on their Aunt's drag car tomorrow that should be fun.

EDIT, I kept James K4 and sold it later, it stayed in the US..

Don R · « **Reply #311 on:** April 04, 2016, 01:01:58 PM »

The diecast spent winter in the trailer in storage, it's still got good battery. I'm excited to ride it this year with the K4 hot rod motor.
There's an engine case for sale on ebay but it's about 550 numbers older than this one. (1014100) if it was that close and newer I'd probably buy it and begin building a numbers appropriate stocker engine. I have a 103xxxx engine that would donate it's parts and some pieces from an earlier 101xxxx but no crankcase.

Don R · « **Reply #312 on:** May 01, 2016, 10:48:37 AM »

In 1970 my brother rode a cl450 converted to street use with a hooker header and street tires. He worked at the local Oldsmobile garage and the lube tech knew a guy with an new 750. On one occasion the 750 guy rode in for a visit and the lube tech told my brother to come out and see the new Honda 4 cylinder, He remembers seeing it several times and wanted one, it was 74 before he got his. It turns out the 750 is the sandcast I own now. The lube tech (Duke) and the original owner (Gene) of my bike were buddies.

dhall57 · « **Reply #313 on:** May 01, 2016, 10:57:39 AM »

That's crazy how that worked out. Small world in the sohc4 community isn't Don

Don R · « **Reply #314 on:** May 08, 2016, 08:02:26 PM »

It is a small community. I didn't know the PO personally but remember him delivering rock and concrete. Some of my car buddies know his son who rode the bike in high school. No one knew what a sandcast 750 was then. He's the one that came by last fall and picked up his Dads old handlebars. Now we're friends.
I bought a 1970 cb750 factory service manual and supplement off Ebay. I offered $95 on a $140 price and they lowered it to my offer.
The diecast got some exercise tonight, just a couple miles. I was hoping a stuck float would shake loose but no luck. I'll isolate the carb and drop the bowl. With any luck it's an end carb. An old airbox I bought had a nice K&N in it. I think the 130 jet is a little big so maybe the K&N will help a tiny bit with that. It didn't like the profile of the inside of the k4 airbox but a hot air gun helped with that.

Don R · « **Reply #315 on:** June 27, 2016, 08:39:07 PM »

Updated look, I used a few of the dragbikes parts on the 70. The tank hasn't held fuel since the late 70's I'll line it before use.

seanbarney41 · « **Reply #316 on:** June 27, 2016, 09:24:56 PM »

Wow...thats a spectacular combination of parts! I really like that!

Don R · « **Reply #317 on:** June 28, 2016, 04:20:26 PM »

Thanks, I've been collecting parts quite a while. I'm thinking of trying a set of cb400F bars. The ones on the bike were NOS Honda that belong on the sandcast but that's a 3 way handlebar swap. lol.

BPellerine · « **Reply #318 on:** June 28, 2016, 05:37:59 PM »

Quote from: Don R on June 27, 2016, 08:39:07 PM

Updated look, I used a few of the dragbikes parts on the 70. The tank hasn't held fuel since the late 70's I'll line it before use.

nice paint on your tank!

MoMo · « **Reply #319 on:** June 28, 2016, 05:57:00 PM »

Cool tank Don, do you have matching side covers? ...Larry

Don R · « **Reply #320 on:** June 28, 2016, 09:35:11 PM »

I wish there were side covers Larry, I'll just have to go black on them. This tank was on a 500 or 550 Honda in the late 70's. I snagged it off ebay for a cool hundred. My intention was paint it black to restore my old buddys drag bike. Then I got it and the note that said it was striped by the Englishman at Laconia, I couldn't paint it then. It hasn't had fuel in it for decades so there's no alcohol damage.
I'm researching liners, Caswell is the one listed for fiberglass tanks, someone said por15 is also.

Don R · « **Reply #321 on:** June 28, 2016, 09:37:17 PM »

The Sandcast got new fork gaiters and one of the old ones got moved to a K4. I rode a couple of them last evening, stretching their legs so to speak.

MoMo · « **Reply #322 on:** June 28, 2016, 09:44:12 PM »

Quote from: Don R on June 28, 2016, 09:35:11 PM

I wish there were side covers Larry, I'll just have to go black on them. This tank was on a 500 or 550 Honda in the late 70's. I snagged it off ebay for a cool hundred. My intention was paint it black to restore my old buddys drag bike. Then I got it and the note that said it was striped by the Englishman at Laconia, I couldn't paint it then. It hasn't had fuel in it for decades so there's no alcohol damage.
I'm researching liners, Caswell is the one listed for fiberglass tanks, someone said por15 is also.

I haven't relined a tank for several years-I'd use Caswell if I had to do one

CBJoe · « **Reply #323 on:** June 29, 2016, 06:35:27 PM »

I like that tank....Is that an aftermarket tank from the time? or is that off a particular model?

Don R · « **Reply #324 on:** June 29, 2016, 10:58:53 PM »

Joe, the gas tank is a period aftermarket part (70's) made by a company called Fibermold in Oklahoma. I found it on ebay, I've seen a couple sell in the last couple years. What to watch for is gasahol eats them unless they are sealed, I was bidding on one but the seller refused to water test it for leaks, I dropped out.

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Author Topic: I've been K0'd! (Read 201118 times)