Tech Forums > Project Shop
James' 77 550f.
luceja:
So long, stupid story short I ended up splitting the cases AGAIN... which was an awfully good thing because I found the culprit for the ruined head... a little wad of paper towel behind the right oil plug under the crank.. considering how meticulously clean everything else was, it's ironic that I left something as big as a wad of towel in there. I probably put it there to stop dripping while I worked on the cases and just put the plug back in without remembering the towel was in there.
best way to put the motor in the frame, so far: put motor on milk crate to the right of the bike, use a jack to raise a piece of wood into place so you just move the motor onto the wood, not directly onto the frame, and then use the jack valve to lower the motor into position. Super easy.
Assembly...
ignition switch relocation..
First startup caught instantly and has run great with no trouble yet. I was super happy about first startup.
and took it on it's first shakedown run where it didn't explode...
runs great ... so happy with it so far. I mocked up some foam and taped some leather onto the seatpan to have something to ride around on. I see why people don't use just memory foam for motorcycle seats, it's like a rock. For the people interested in the seat, I'll likely redo it to make it slightly wider and document that for everyone.
I used 130 mains today but I don't imagine they are correct, though it's running and pulling great. I'll do some coarse jetting on the road and hopefully get dyno time in the end.
Also, I'm rather happy with how the mac muffler sounds. Not too loud, but sounds rather mean.
Unfortunately I did a poor job mounting the front tire, it's off center and bounces, so not entirely rideable yet.
luceja:
As a small note, knocked it down to 120 mains (38 pilots, stock needle/position/ float height) and it absolutely roars. I can't believe how hard it pulls at wot. It's more responsive even at lower throttle than my nt650 twin and pulls nearly the same at wot; it makes me realize that my 400f isn't even close to being properly jetted. The plugs are definitely a little sooty, starting to show some brown on the ground electrode now with the 120's. I'll try 115, then 110. I mean, it's just a muffler and stacks, I can't imagine the mains need to be that much bigger than stock.
Greggo:
Hey Luceja, wanna sell a set of gauges off one of those 500/4's? Looking for a set of the small gauges, with one light per gauge if you've got 'em.
Thx, and the bike is looking HOT!
luceja:
Unfortunately, I've already pirated the only pair of 500 gauges I had for the the 550f. I've got lots of big crusty 550 and 750 type units to spare. Thanks for the complement. I've been zipping around town on it and absolutely adore it, it''s a blast. It's gonna be all dirty before I even finish it!
luceja:
Here, I'll post a riddle:
and here's the hint:
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