Requesting help in identifying 850 model

marshg246 said:

There's something wrong here. When you go thru the AN menu you do not get those pages, you get the pages that match what I'm saying.

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marshg246 said:

I have no idea how to get to the pages you provided. The links certainly work so I don't dispute them. I'll ask AN what's going on.

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L.A.B. said:

MK1A: https://andover-norton.co.uk/en/shop-drawing/205/carburettor-mountings-air-filter-and-fuel-line

That's Mk1 (drawing 012)

MK2A: https://andover-norton.co.uk/en/shop-drawing/205/carburettor-mountings-air-filter-and-fuel-line

That's Mk2 (drawing 012)




Norton 750 / 850 - 1973 incl. 850Mk1A
https://andover-norton.co.uk/en/shop-drawings/5

Scroll down to
850Mk1A:
Pages/drawings 035 & 036


Norton 850 - 1974 incl. JPN & Mk2A
https://andover-norton.co.uk/en/shop-drawings/6

Scroll to
850 Mk2A:
Pages/drawings 034 & 037

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gortnipper said:

As LAB says, you have to be careful with the AN site. I have ordered a few parts off of the AN site prior to getting the 2A list, only to discover that they were wrong, despite my bike being a mk2 and not a 2A it had many of the parts on the 2A list that were common - like the slotted chain-guard and the mk3 swing-arm bushes.

It is essential to compare what you have with what you are ordering, I discovered...

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marshg246 said:

That's exactly what I do and I gave the resulting URLs. I don't get the pages you provided in the earlier post. For all but the MK3, I get the metal air box. For the MK3 I get the plastic air box.

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marshg246 said:

Ok, that's embarrassing! Now I understand. I've had AN make changes before to stop confusion and will see if I can get them to add a note that explains what you've taught me - thank you!

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NORTSTER1974 said:

As the old bloke tells in his video there were some subtle changes going on before the MK3, hence the MK2A. Airbox, bean can mufflers, cut away on chain guard for brake inspection, recess in side cover, you have 2 swing arms in your video, the appropriate one would be the one with the reinforcement, plus it should have the welsh plugs on the swing arm pivot. Your frames do not have the extra brackets for the hinged seat either. My bike is # 31661#, June 74 and it is an MK2. MK2A had late year changes in anticipation for the 75 MK3. Chain guard cutaway, swing arm, air box, etc.. So what you have is a bunch of parts, but most are for the MK2, which is what you have. So just put it together using parts references for the MK2 except for the swing arm. Good Luck.

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