Pics as requested of one of my rides Stroked ATC90

[greenhuman]

In 1980 I imported two Pauter 180cc kits. 61mm cranks, 61mm high top Venolia forged piston kits with the Pauter cylinders, 30mm inlet valved heads with rollers each end of the hot cams, 28mm Keihin methonal carbs and manifolds.
These things run like you wouldn't believe. Neck and neck with air cooled 250R's.
I still have a heap of Nos Pauter and Helm and Son cylinders and stroker cranks.
In 1982 I went to Pauter's and went thru their factory and there was still a heap of parts kicking around. This was just after Ace Williams had his big crash and this took the wind out of their sails I think.

[Vealmonkey]

You've been holding out on me for 90 parts? Oh man, what now? I guess we'll have to talk some more. I didn't know you were sitting on 90 stuff. My poor credit card. LOL

[shortline10]

My Motor in the nicholson red 90 was built by BOB (ace) Williams . Your not kidding when you say it will keep up with a 250r because mine is wicked fast . When I got the motor I tore it down and installed new rings to freshen it up a bit . It has the Venolia very high dome piston in it . You have to pull the recoil to the top of the compression stroke and hold on tight when starting because if you slip it hurts and can put a dent in the tank very easy HAHA . Here are better larger pics of the ACE motor . IF YOU HAVE ANY PAUTER CYLINDERS AND VENOLIA PISTONS ID BE INTERESTED ALSO .

[Vealmonkey]

You need to lower those fork legs down in the triples some, you won't like that handling at all the way they are. Also, you need to vent the upper valve cover and then run that vent line back to you vented dipstick and have a "T" to tie them together to vent all that turbulent air in the head and engine case. If not, you could start having alot of oil leaking past your gaskets and seals. Also, where is your deadmans' switch? Any good racer needs a deadmans' switch. If you're flattracking, you need to lower those trikes down some also with some lower profile rubber. Those are sweet machines though. I bet we could chew the fat for hours over some building techniques.

[shortline10]

That's a great idea about venting the valve cover and case breather together . I need to do that on my ACE motor because if I run it hard it seeps oil at the timing gear cover . Got any sugestions on how to vent the valve cover ?

[Vealmonkey]

It's pretty easy, just drill and tap for a 90 degree or 45 degree fitting that is the same size as the outlet on the vented dipstick. Then you just need to get a "T" the same size. You turn your dipstick outlet around so it is a straight shot to the "T" and then you just run a long piece back past your rear tires and axle and that pretty much covers it. I can't remember what size fitting comes out of the vented dipstick but it's pretty easy to do. We had the fittings at work, so zero cost. Thankfully work has donated many bits and pieces to all my builds and the machinist have helped me make parts before also.

[the great gazoo]

Wow! I just came across this! Pat, go take a shower

[harryredtrike]

very very cool,nice job on the redo's[both].like the red one best sofar.keep up the good work.