Topic: I've been K0'd!

[BenelliSEI]

Don..... Z1 parts sells a kit that includes the bracket. Maybe 4-1 sells just the hardware?

[Don R]

 I think so thanks.

[seanbarney41]

I got a similar kit from Yamiya

[Don R]

 Z1 has the hardware kit also. Thanks.
 https://z1parts.net/honda-turn-signal-mounting-hardware-cb750-cb400f/

 Not today though. I'm gonna need to let paypal cool off a bit before they think my account has been hacked. L0L!

[Don R]

 I got the 10x6mm thread repair inserts and the 6mm ID (approx) x 5/16" OD tubing. I'll need to sit a good tower on the head, then find the exact location of the original hole in a mill or nice drill press to drill and and tap it. The guy that drilled for the 5/16" hardware apparently used a hand drill that must have walked a little. 
   This sandcast innards with a diecast replacement case motor might be a good spot for the Wiseco 812 kit I snagged off ebay.
  It's replacing a K3 cruisin image 836 ported and cammed so a stocker might be a disappointment. The K3 engine has its correct frame waiting on the shelf.
  I'm guessing a healthy 750 might make 1 hp per 10cc as a rough guess 812 might be worth 7 or 8 hp. The compression won't hurt anything either. Maybe a good F cam
  If I put the wire wheels on it that's going to make a pretty stock looking K0 that still runs good.

[BenelliSEI]

I took the diecast for a spin to a dentist appointment, about a half mile away at a stop sign it backfired and dropped a cylinder. I made it to the appointment on time. I believe it has aftermarket float valves but am not positive, too many bikes and no paper trail. Dang. The #1 carb has always been an issue.
 Since the resto it's got 385 miles on it, that probably the root of the problem.  I feel the need to check valve lash and may replace the free to me Pamco with a new old stock 20 year old Dyna just to eliminate possibilities.

Don...... if it’s just one cylinder, probably not your ignition system. Shorten the end of that ignition lead, screw in a new end, and change the plug before ripping into too much.

I’ve done too much, too soon, too many times,

[Don R]

  I agree, it was the float valve. I removed it and blew air through backwards with the fuel line off, then hooked it back up, turned on the petcock and allowed fuel to wash it out before putting it back together. That cylinder got its plug swapped with #4 and it seems OK so far.
  Its sleeping under a blanket inside the car trailer that's inside a big building now.
  The guy that painted it wet sandblasted the gas tank and the foil tape over the gas cap opening got gapped open. I've cleaned/flushed/blown out the gas tank several times and still find grit in the petcock and float bowls. I call him old 80% because that's what he puts into his work.

[Don R]

 After doing some cylinder head swapping, I came up with a set of early cam holders so I can assemble my -400 or so serial number sandcast head. I was going to use it on a die-cast motor to go into my first K0 so it can have an original type motor. Maybe it should have a home on a proper sandcast engine.

[Don R]

 I rolled the freshly spilled over diecast (no damage thank goodness) and my brothers one owner K4 out of my car trailer after an extended winter and into summer nap. Neither has a battery. I recently sold two bikes and oddly everybody that buys a running bike wants it to have a battery. It appears I'm down to 3 batteries for around 10 cb750's. (4 don't run) Not a good battery to bike ratio. A friend left me a nice Kawasaki V twin battery but it's a half inch too long and polarity challenged too. It's a shame.

[Terry in Australia]

Spotty gave me a new battery and a bottle of acid recently, I’m not really a fan of old lead acid batteries after using Motobatts for the last few years, but I couldn’t complain about the price, so I’ll put it in my upcoming 970(?) K1 build and use it for the first year or so that I usually get out of lead acid batteries before they die.

[HondaMan]

After doing some cylinder head swapping, I came up with a set of early cam holders so I can assemble my -400 or so serial number sandcast head. I was going to use it on a die-cast motor to go into my first K0 so it can have an original type motor. Maybe it should have a home on a proper sandcast engine.

Speaking of K0's...Don, do you know where a fella might find a K0-type head gasket without the bolt-hole in the middle front? This sandcast doesn't look like it will seal for beans with the usual holed ones I have.

[Don R]

After doing some cylinder head swapping, I came up with a set of early cam holders so I can assemble my -400 or so serial number sandcast head. I was going to use it on a die-cast motor to go into my first K0 so it can have an original type motor. Maybe it should have a home on a proper sandcast engine.

Speaking of K0's...Don, do you know where a fella might find a K0-type head gasket without the bolt-hole in the middle front? This sandcast doesn't look like it will seal for beans with the usual holed ones I have.

I found one on ebay once but I'm not aware of any right now, Benelli sei may have a spare. Come to think of it, I need one too. CMSNL has a list price over $1200 but they are sadly, out of stock.

[BenelliSEI]

After doing some cylinder head swapping, I came up with a set of early cam holders so I can assemble my -400 or so serial number sandcast head. I was going to use it on a die-cast motor to go into my first K0 so it can have an original type motor. Maybe it should have a home on a proper sandcast engine.

Speaking of K0's...Don, do you know where a fella might find a K0-type head gasket without the bolt-hole in the middle front? This sandcast doesn't look like it will seal for beans with the usual holed ones I have.

The ancient “Best Gasket, Made in USA” I used on mine actually had the front, centre hole. Otherwise, it fiit perfectly on the Sandcast, so I just snipped off the extra bit. None of my other head gaskets looked even close…… Does Yamiya show any?

[BenelliSEI]

All Yamiya gaskets have the front/centre hole. Their K0-K3 gasket looks good.

[Don R]

  I dropped the freshly charged and new diehard battery in the old K0, and it fired instantly after sitting in the enclosed trailer since last September.
  I'm a fan of my buddy's formula of half no alcohol 89 pump gas and half 110 Low Lead av. gas, with a dash of synthetic Amzoil 2 stroke oil. He uses in in his Indian and Simplex bikes. 

 385 miles since I dropped in the NOS speedometer I got on the sandcast site and the K0 tach that I got from a good guy here.  I intend to improve on the miles ridden.

[Don R]

 I ordered a set of BT46 tires, it's a little backwards swapping from Stock type Dunlops on Lester mags to BT46 on wire wheels. The diecast has always been a little confused.

[Don R]

 The old dog is dropping cylinders at idle and low rpm,s it runs awesome above 2 or 3K It feels like a set of sensors or a coil is dropping out. It had plenty of voltage and a new charged battery. It may be a victim of the old "it fell over and now it won't run" syndrome.

[BenelliSEI]

Try giving the points a little scrape or Plugged idle (low speed) jets?

[Don R]

 It's funny, I thought condenser then I took the cover off and bam, there's a pamco in it. I swapped it off of a bike I sold a few years ago and forgot about it. That bike would kick start with nearly no voltage, first try, every time.
 I don't think it's carbs, none are leaking when stopped with fuel on, and it's intermittent. It might run great to the end of the driveway, drop a couple cylinders and pick them up again.
  Checking pipes with the heat gun didn't work, it didn't want to read the chrome pipes. I have a new old stock dyna in the box. I'll either try that or slap a set of points back on it. I remember keeping the really low mile complete tec points plate but may have used it since then.

[Don R]

 The dyna is on and all 4 are firing but I've messed up the carbs doing the attempted balancing. I may bench set them and start over I think the cables are fighting me. Anything over 2500 rpm is runs as good as ever, lower rpms not so much.
 I got the new DID rims off the parts rack and replaced the one old spoke on the rear. I misplaced one new one and had used one old one. Later I found the new one and put it on today. I cut the old spoke and a couple strong thumbs got the new spoke in place.  The BT46's are waiting for a bike to be on. My next problem is where to put the 19/18 Lesters with the older Dunlops TT's.

[RAFster122s]

Gee, I wish I could solve that Lester dilemma you face...hehe

A set of Lesters would look good on my cb550.

[BenelliSEI]

“I cut the old spoke and a couple strong thumbs got the new spoke in place.”

Don……. That’s a good trick and it does take strong thumbs!!

[Don R]

 I sacrificed the old spoke to avoid scratching the DID rim. When I bought this set they were out of stock in a lot of places. I got one first then later found the other one. I forget where I got the spokes, but they were a set for both ends. I wasn't wild about them because of a couple bad nipples and I thought I was short a spoke. Later I found it where it fell and there were enough good nipples to finish it anyway. Today I was liking their look.

I thought I was lucky 15 years ago when I found these 18/19" Lesters, I didn't even realize that the bike attached to them was an 11/69 build date K0. Then two years ago when I bought out the drag racer, I got a set with a wide 18" rear. Those are on his old bike the K1 Rat Race.  I'm hoping we can get him back on the track on it next month.
 

[Don R]

 I got the wheels balanced in the hot shop today and cleared off the work bench. It's 92F* not so bad when I have the water and AC in the house for frequent breaks.

[MoMo]

Hello Don,  good to see you still playing with bikes .  Larry