My brother-in-law met and had a friendship with Kazio Yoshima, who helped design the first Honda 4 cylinder Motorcycles. When Kaz left Honda, he started a company called Ontario Motor Works. I was fortunate enough to be able to have many conversations with him. I sent him my carbs, and cylinder head. He did a valve job, and ported the cylinder head, and hand bent an exhaust pipe for me, and flow benched the whole rig. I went for the 458 cc upgrade (the 499 cc was too lumpy at idle for the road) and I did the bottom end. Forged high compression pistons I purchased for Kaz, shot peened the rods, and plasti gauged every bearing to it's mean value. He sold me an overhead cam chain he guaranteed to 24K rpm's. The bikes new redline was 14,500K rpm's. In 1977 the cam chain alone cost me $275 bucks. I had a lot of money into that bike, but I could easily stay with the 1000 cc bikes of that era, and the ones to come. Riding with clip-ons, and a 1//4 fairing, it was a mean little red machine.
When I got the bike, just to get a top end reading, on the track, I was clocked at 135 mph. Not a 1/4 mile time, just to see how fast I could get the bike going. A very high pucker value. I had also put aluminum gold anodized D.I.D. rims with stainless steel spoke rims, which I laced together, and Koni aluminum body shocks. I drove the bike for around 8K miles, and it is now parked in my Barn. It needs a going over, but is all there. I've had ridiculous offers for it, but will be leaving all my stuff to my son, who wants it, so why not. That was my first bike.
I think the reason that 250 cc bikes are hard to find is that nobody sells theirs, or they are purchased by people close to the seller, and never make it to market. I would like to have something that size. I could carry it on the Hitch of my motor home (there are nice carriers for bikes that size, class 3 hitch), and it would be perfect for bopping around, getting groceries, and not having to drive the motor home for small errands when away.
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