by the way... who are the crazy pants that cranked an SOHC4 up over 126mph?
Hondaman sent me a magnificent set of RC Engineering 836cc pistons and cylinder block and a set of RC rods last week, and I've torn down a K6 engine that I'll rebuild this weekend, with the 836 pistons and block, Mike Rieck head, Megacycle 125/75 cam, Tsubaki cam chain, and M3 Racing cam chain tensioner. So last Saturday, I took my K1 for it's last ride with the current engine. (out of my K2)
This engine was rebuilt many years ago and then not used until I bought the bike from a wrecker I knew, who'd gotten it from a guy who'd dragged it out of his barn after it sat for well over 20 years. I tore the top end down to find 4 brand new shiny 2nd oversize Honda pistons, rebore, new cam, cam towers, machined head etc, and I replaced the cam chain with a new H/D item and a set of RC head studs, then just put it back together.
So it's really stock, except for the new Keihin CR29mm carbs, Dyna S ignition and Dyna 3 Ohm coils, and a tuned length 4 into 2 race pipe. Last time I rode it in March I got it up to 125+ Mph on a quiet country road not far from where I live, so I took it back there last Saturday hoping for a little more with the CR's, and although they need some adjusting, (too rich at the moment, but I'll wait to see what they're like on the new engine) at full wail in 4th gear it was showing 120 MPH @ (about) 10,000 RPM, then I flicked it into 5th and saw the needle hover between 125 and 130 before it lost a little momentum as I started to go up a hill. The bike felt more stable this time too, with the upgraded forks and fork brace since it's last run, last time I could feel it wanting to go into a "speed wobble", but this time it was (almost) rock steady. I won an auction on EBay for Dan Fisher's alloy steering damper and when that arrives, it might inspire more confidance for another, faster, run, ha ha! Cheers, Terry.