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Late model G80 / Mk2 ES2 info?

Late model G80 / Mk2 ES2 info?

Postby N0rt0nelectr@ » Fri Jul 29, 2016 8:27 am

I am looking at a late model Mk2 ES2 Norton but want more info before I jump into this project. I have found a few pictures but nothing with any detail. I know that they are re-badged G80's because Berliner thought that Norton needed a single in the range. As I understand it neither Norton or Matchless riders were happy with the idea.
Where might I find a parts book / shop book and maybe sales brochures? Can't have to much info.
I will be out of town for a couple of weeks but will respond to any reply's as soon as I get back.

John in Texas
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Re: Late model G80 / Mk2 ES2 info?

Postby Bernhard » Sat Jul 30, 2016 3:37 am

depends what model and year it is , it could be a Rotax powered Les Harris Matchless G80, or even a OHC machine if you are lucky :!:

https://en.wikipedia.org/wiki/Matchless_G80

http://www.gracesguide.co.uk/Matchless

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Re: Late model G80 / Mk2 ES2 info?

Postby N0rt0nelectr@ » Sat Jul 30, 2016 6:16 am

It is a mid 60's bike 65 or 66 I think. This is the one with the Norton style oil pump.
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Re: Late model G80 / Mk2 ES2 info?

Postby batrider » Thu Dec 15, 2016 12:16 pm

I'm familiar with the late Matchless singles with the Norton oil pump. I had a '66 G80CS up until a few years ago and also have ridden a '66 G80 road version (the one with the zig-zag lightning bolts on the tank). I thought the road bike was wonderful. Riding a Matchless single is a whole 'nuther world. Parts availability for late Matchless singles is very tough compared to the the '63 and earlier versions. The AJS/Matchless Owners Club in England (jampot.com) has a spares scheme and it is very good but that bike would be a rare bird.
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Re: Late model G80 / Mk2 ES2 info?

Postby N0rt0nelectr@ » Mon Dec 26, 2016 8:13 am

I have a 55 AJS 18S that I don't ride as much as I should. Need to take it out for a New Years ride.
The 66 G80 should be here in February, I will post pictures when I get it. The guy I'm getting it from is coming for a visit so that will save me a 1200 mile round trip, but I will miss out on good Mexican food. TexMex doesn't cut it.

I hope everyone had a great Christmas and have a prosperous New Years.

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Re: Late model G80 / Mk2 ES2 info?

Postby Peeeleven » Fri Feb 17, 2017 3:45 pm

Hi John , dont know if you are still looking for info on the late AMC singles but this site has loads of parts lists and workshop manuals etc.


http://archives.jampot.dk/


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Re: Late model G80 / Mk2 ES2 info?

Postby N0rt0nelectr@ » Mon Feb 20, 2017 1:18 pm

Peeeleven wrote:Hi John , dont know if you are still looking for info on the late AMC singles but this site has loads of parts lists and workshop manuals etc.


http://archives.jampot.dk/


Peter.

I should be picking it up in a month or so. Had to finish up one project before I took on another one. When I get it I will post pictures.
Thanks for the info, I have saved it to my favorites for future reference.

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Re: Late model G80 / Mk2 ES2 info?

Postby river700 » Sun Feb 26, 2017 5:53 pm

Letter in May 2016 Roadholder by Bill Cakebread described his book Motorcycle Apprentice. About his days working at AMC. Also new website- http://www.workingatamc.london. Not sure how to make that a link on my phone, but lots of interesting history there.
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Re: Late model G80 / Mk2 ES2 info?

Postby Bernhard » Sat Jun 03, 2017 5:17 am

Re;
http://www.workingatamc.london.

The following amuses me as I started an apprenticeship in 1965 making tools and gauges, I can tell you carbide tips had become available, I was cutting pockets in tool to braze the tips in.

http://www.workingatamc.london/maintenance.html

RE; “It needs to be remembered that, in the 1960s, no carbide-tipped tooling existed. It was all standard drills, taper shank drills and what were called core drills (4-fluted taper shank drills that came in all lengths and sizes). These generally had blunt ends and were designed in-house with stepped diameters according to what they were required to do.”

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Re: Late model G80 / Mk2 ES2 info?

Postby N0rt0nelectr@ » Sat Jun 03, 2017 12:00 pm

I should have the G80 road bike on the 19th if all goes as planned. Pictures to follow.

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Re: Late model G80 / Mk2 ES2 info?

Postby mdt-son » Wed Jun 07, 2017 10:28 am

Hi John,

I don't agree with the above poster regarding parts availability for the late AMC singles. Pistons and rings can be a challenge, but there are ways ... e.g., using HD sportster pistons. ABSAF makes complete new engines (G80CS). Cylinder barrels may be re-lined. I suggest replacing the cylinder barrel with a G80CS item which is readily available.
Cylinder heads for the roadster are almost unobtainable - heads for the G80CS are far easier to come by - ABSAF sells them new.
Bottom end - timing gear - Russel Motors in London still stock parts. Baxter Cycle may hold some (ex. Domiracer stocks).
Oil pump - new ones are available from Andover Norton.
Big end - readily available from Alpha bearing, UK.
Transmission parts - readily available from several sources.
Cycle parts - mudguards and petrol tanks are hard to come by. The petrol tank was used on G12 and G15 twins too. Oil tank and battery carrier are avaiable s/h (AMC Classic Spares). l/h side covers are available from various sources. Foot rests are hard to come by try Russell Motors. Levers are readily available from various sources.
Fasteners - readily available from various sources, especially stainless parts. Try the AMOC spares scheme, or Andrew Engineering (UK).
Forks and wheel parts - readily available from various sources.
Most electrical parts are readily available, with the exception of the ATD, however, the latter is serviceable. ATD springs - try Baxter Cycle.
Speedometer - reconditionng and new parts are avaiable from a handful sources.

I hope this helps.

-Knut
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Re: Late model G80 / Mk2 ES2 info?

Postby N0rt0nelectr@ » Sat Jun 24, 2017 7:39 am

Well I have my newest project home and I am evaluating what I need. Took longer than I wanted to get it home but that is OK.
It is a 64 G80 standard bike in road trim. Came with a new seat that looks to be one of the repos done by Domi Racer. It had been sitting in a warm garage and the glue didn't hold so I am in the process of gluing in back into place.
I will be needing a chain guard which looks like the one on my N15. Also need the filler piece that goes between the tool / battery box and the oil tank, that I think will be a tough one to find!
Here are a few pictures of the bike with the tank and seat off of it.

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Re: Late model G80 / Mk2 ES2 info?

Postby N0rt0nelectr@ » Sun Jul 02, 2017 2:11 pm

Been doing a little work on the 64 G80. Re-packed the rear wheel bearings and discovered that the spacer between the backing plate and the swing arm was wrong. It looked to be one off of a Commando because it was to thin, I looked at my 66 N15 and I could see the difference. Good thing I am a pack rat and had the correct spacer in my stash of stuff. Stripped the backing plate and re-painted it. I also stripped off that awful black crinkle paint off the dish plate and cleaned up some of the other stuff. The tires are the wrong size and I will be replacing them as money allows.
Working on a wiring harness. Had an old harness off of a British bike and I took it apart so I could have the correct color codes.
Doing a little at a time, and a little each day to keep the project moving forward.

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Re: Late model G80 / Mk2 ES2 info?

Postby N0rt0nelectr@ » Mon Aug 14, 2017 8:28 am

N0rt0nelectr@ wrote:Been doing a little work on the 64 G80. Re-packed the rear wheel bearings and discovered that the spacer between the backing plate and the swing arm was wrong. It looked to be one off of a Commando because it was to thin, I looked at my 66 N15 and I could see the difference. Good thing I am a pack rat and had the correct spacer in my stash of stuff. Stripped the backing plate and re-painted it. I also stripped off that awful black crinkle paint off the dish plate and cleaned up some of the other stuff. The tires are the wrong size and I will be replacing them as money allows.
Working on a wiring harness. Had an old harness off of a British bike and I took it apart so I could have the correct color codes.
Doing a little at a time, and a little each day to keep the project moving forward.

John in Texas


Most of the wiring is done. Just waiting for a care package with new Lucar bullets and the correct crimp tool for them. Hope to have them later this week.
A friend gave me a hobbyist lathe and I have been using it to make spacers and the like. Ordered up some spare parts from AMC Spares, got the correct lifting handles which is why I need the spacers. Just waiting on the next care package to come in.
At the end of the month I am headed to Davenport for the Blackhawk Motorcycle swap meet, maybe I will find a few of the bits I need for my project. We will see.
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