H-1 Project

[Ranmar850]

Originally Posted by Tundra Tom

Kinda like this Tyll?


Well, I got the H-1 back together but it wouldn't start.
Gas on all 3 plugs, spark on only #3. Strange, going to check the wiring again from the points the the harness as they were all dis-connected on tear down. Cleaned the points and checked gap. Plugs are new but still swapped them to be sure. Plug wires were replaced but still checked them with a continuity tester while flexing them. Maybe test the coils. Mmmmmm...any thoughts?

Does the spark remain on the same lead when you swap plugs? I'd be looking for something plugged in the wrong way from when you had it all disconnected, it's probably staring you in the face? Or perhaps some age-related corrosion in a connector, giving just enough resistance to be a show stopper./--Failing that, get some HT lead , without the plug cap on the end, to see if you are actually getting spark down all leads, without the cap being in the way. Do you know the bikes' history, ie, was it running before storage? Something like a coil failure could have been the catalyst for storage?? Good luck.

[Tundra Tom]

I got it running when I bought it in '95 but it eventually lost compression and sucked trans oil on the right side.
All three coils are powered by the same wire. They each have a trigger wire. I switched trigger wires and found #1 is dead, looks like it leaked some spooge, now crusty. #2 has no signal going to it. I may try swapping points on that coil. It's hard to mess up the wires as they have a three prong plug and are color coded. I just won a trio of used coils off E-Bay for $12.00. Also has a strange aftermarket black box running between the power wire and the coils labeled ARC. I may yank that after the coils get here and I have all three sparking. Any more advice is appreciated.
Great photos and stories all around! I don't own a CB-750 but have a '71 CL-350 that I'm about to put some dual purpose tires on.....and fork seals.

[Hair]

I really wanted one of these. I still do.

[Stagehand]

Originally Posted by Tundra Tom

Great photos and stories all around! I don't own a CB-750 but have a '71 CL-350 that I'm about to put some dual purpose tires on.....and fork seals.

Now youre talking

[Tundra Tom]

Jeez, you guys are are putting the 'ole Norton to shame.
I've still got two sets of tires to mount right after the H-1 gets running. I've got no time for the Brit!

[spanky]

Originally Posted by Putts

I think the guy who drove one at my high school had this color scheme..... He'd open it up pulling out of the parking lot and it was like the space/time was getting torn open around it.

Yup, yer gonna have fun, Tom.

I made the mistake of doing that when I pulled away from a buddy's house on my '72 Mach III. I wheelied from 1st to 2nd and from 2nd to 3rd each time the front wheel bounced from the ground and into the air. He later told me he thought I was pretty cool, I told him the wheelies weren't intentional and I was merely holding on for my life.

Sometime later that summer I had a guy in a GTO Judge pull up next to me and start revving his engine. I looked over and gave him the nod to go when the light turned green. This time I decided to sit up closer to the fuel tank and keep more of my weight over the engine. Well, no wheelies this time but on a cool, humid morning under heavy acceleration the Mach III simply decided to start riding itself out from under me. I smoked (no pun intended) the GTO but found my ass so close to sliding off the rear part of the seat I had to shut it down.

I've since had quicker and faster bikes but there's something about a Kawasaki triple that inspires awe because of its violent acceleration and the sound it makes as it winds up. The throttle was more an "on/off" switch than anything else and heavy use of it rendered MPG readings in the high teens but DAYUM that bike could slam your eyeballs into the back of your skull! I bought mine used in '75 from the local Cadillac dealer and sold it in '77, paid $600 for it.

[Motoduc1]

Originally Posted by Hair

I really wanted one of these. I still do.

Question: Was this model ever sold as completed motorcycle? If so, were they referred to as "Dunstall"?

Or did you purchase the bits from Dunstall...or, send your own Norton to them, etc..?

Kent
www.backtrackvideo.com

[Ranmar850]

You could buy a complete bike from Paul Dunstall, or donor one as I recall, much the same as you could buy a Gus Kuhn Special straight out of his shop, even 920 kitted. he also sold parts separately of course--I think his first complete bikes were pre-Commando; the Dunstall Dominator, based on a Norton Dominator 99, was a ripper.

[Tundra Tom]

Well, back to the thread subject...
Got the coils and hence spark, one coil was bad.
The Kawi starts great but rev's to 5-6 grand and stays there. I've checked all the carbs to make sure the slides are seated. The starter circuit (choke) plungers are all closed and operational. Maybe an air leak?

[Tundra Tom]

Come to think of it the carbs where off the Motor and "bagged" on the frame from way back when. Think I'll just yank them and clean them out again real good, especialy the choke circuit.
Ohhh I loved the smell of that Bel-Ray 2 smoke oil.

[Wirespokes]

Originally Posted by Tundra Tom

The Kawi starts great but rev's to 5-6 grand and stays there.

With new seals, hopefully it's not them. If it's not air leaks, check out the spark advance - could be sticky old grease.

[Tundra Tom]

Originally Posted by Wirespokes

With new seals, hopefully it's not them. If it's not air leaks, check out the spark advance - could be sticky old grease.

Could it be a leak between the cases? I applied the silicone rather sparingly.

[woods wizard]

Hey, have you seen Twist the throttle on Discovery Channel ? just did Kawasaki. A short good peice on the H1, as well as Z1, Ninja 900 & ZX11 pretty well done show. Good ole footage & pics , interviews.

[Tundra Tom]

Naw I missed it, heck I don't even have "the dish".
Didn't have time to dig into the carbs yet...soon..soon.

[Tundra Tom]

Well shit, went though the carbs, looked good as before.
Starts right up first kick, still revs to 5 grand.
Admittedly I used the case sealer rather sparingly as the previous owner had silicone freaking everywhere inside the cases. I got some 1194 (recommended) and will pull the motor again.
Did get the new dual sport tires on the CL-350, rocks even on the trails. Putting tires on the better half's Vulcan right now. Need to ride rather than wrench!