Join Date: Jun 2007
Location: Just north of Annapolis Maryland
Thanks, Surprisingly, there are still a bunch of places that still work on these classics. I do all my own work except crank rebuilds but I was pretty amazed to see how many good machinists are still working on them. A rebuild for a twin goes for around 75-100 bucks with a triple going for between 100 and 150 bucks. I used to roadrace a GT750 engine stuffed into a Bimota frame back in the late 70's. We started with a H2 but like your cousin, suffered way too many failures. I did learn how to weld a crank on the H2 though to keep the pressed on flywheels in place<LOL>. Our H2 was just too tempermental to roadrace although there was a H2R that was watercooled but we didn't have the money to actually BUY a bike.
I spent a lot of time back then learning and building. I had a guy kinda take me under his wing and he taught me quite a bit of how and why a two stroke can be so powerful and how to move the powerband around. A lot of folks knew the guy and he wrote a few books. He passed away in '00 or '01 and from what I heard, a lot of folks went to Gordan J's funeral. Yeah, I was lucky enough to learn from one of the best.
I always liked keeping the oil pump on anything other then a race engine. The main issue is getting oil to the main journals with premix and no matter how rich you run it, it just doesn't get in there like the oil injection. On a race engine, you're going to tear it down each week but for the street, you really don't plan on taking it apart all the time, hence the oil pump remains.
I just got all the jets I ordered lastnight and I installed the mains and pilots that took me nice and rich....so I can finish dialing it in.
It's get a nice bark to it and I've never heard a gt550 rev like this one does. I din't get them in till late last night though so there was no time to start plug chops.
My VStrom 1000 K7
Stock: a purple '74 RD350 in great shape, '70 H1, '72 H1, 1975 GT550, ,original 1975 H2 750 triple (purple of course), 1976 CB400F Supersport. '73 CB350-given away Modified: Fully ported 1974 H2 750(my go-fast), a scary fast '82 Yam 650Turbo running 18PSI, a '75 GT550 built up & ported. To-Restore list: '72 H1, 2-'75 H1's, Latest acquired: 1974 GT750 can't wait to replicate our racebike of the 70's!
Last edited by Jeff Kushner; 05-12-2009 at 08:14 AM.