SOHC

Those synchros look like they still have a bit of go in them?

I think that’s acid marks and not a cracked tooth? I have it a tap with a punch and it didn’t change

Almost time to do the engine swap, that’s all under control but I am thinking of fitting the other gearbox I have, it had clean oil but I have no idea what it’s like, looked ok when I had the lid off. The gearbox in the car won’t go into reverse sometimes and you have to change into gear then back into reverse or double clutch to get it to click in and it will jump out of 2nd under engine braking on very steep hills and when I fitted the bell housing I had to drill a mounting hole and where I drilled hit a bearing lol, I need to space that hole out a bit to avoid that spot.

The timing side bearing on thees JAP engines is a crowded needle roller witch runs directly on the main shaft, they are a real heart breaker. I need to find a way to get the inner bearing shell out of the crank cace

Split the crank on one of the motors and rod and crank pin are in good condition, but this crank has a different main shaft, it’s looking like I need to get a new mainshaft made, bathcolector sent me a better one I will see if it cleans up with a grind and O/S rollers, cam pinon gear is pretty bad to.

Took both motors apart to find the one I want to use has some moisture damage to the shaft, (rollers run directly on the shaft) big end feels really good play wise but probably has the same problem. other motor looks as if it never had an oil change

I am probably going to sell the engine out of this, $4000, runs really well, fumes out the breather a bit but uses no oil, +30 on the bores, recently put new head gaskets in it and had the heads milled, 5T camshaft, stainless valves.

Wiped up another muffler as so I can chop and change

I may make another one, with out a fish tail or a smaller fishtail I am not sure I just wanted to make one

I am going to make a Brooklands can, made the fishtail this evening but I have run out of steel for the main body.

What NGK plug would cross reference with a Champion D16? I lost my sparkplug book

Took the gearbox apart and as allways 2nd gear has gone through the cace hardening, on the lookout for a clutch, I need the clutch for when I make the engine plates

It must have a little regulator for the direct AC lighting? Or is it like a BSA Bantam and you miss a gear and burn out the headlight. Outer calliper piston seals can fuck off especially on a dirt bike

Got this motor today, it’s an industrial motor but has the mag out the back witch makes things way more easy, it was from a rotory hoe that had a stuffed gearbox and other problems so I didn’t feel so bad.