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SOHC,s Norton


SOHC
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Someone has offered to buy me a Jawa 890 engine in exchange for me working on other Norton’s to pay for it,  this could be a good thing but will cost me as I will have to take time away from my work.

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  • 3 weeks later...

Picked up this plunger frame Arial wheel that has been modified to fit my Norton frame, this was a common thing to do back in the day for side car racing as the Arial wheel has a much stronger hub, and being a plunger the axel must be 4 times as thick as a normal swing arm axel. Also got some Triumph clutch parts as I have adapted a 4 spring Triumph clutch to my BSA.

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This engine is also a contender for this project, it seems to be in very good condition and has never been apart. Problem is the mag is in the way of the frame, I am thinking of making up a plate with a trigger coil and running a CDI ignition or something 

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Well I think I got scammed on a cylinder head, payed a guy for a motorcycle head but no head yet. the one on this engine has the Finns going in the wrong direction for a motorcycle, but apart from that the JAP engine is an ok fit, I have over 50mm to make a new ignition system.

A shit load of work is needed now

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  • 2 weeks later...

Cut the starter snout off and melted it down into blobs then I have welded up the hole and the script with it using the oxyacetylene, you can use all the crap to your advantage, it works like a flux. 

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I ordered another ignition, this one is a little big bigger and has a some charging coils. I really hope I can fit it between the frame and the engine, failing that I can cut the whole thing off the engine and extend it and the cover and weld it back on so the mag is in front of the frame.

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