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    1982 GS550M build

    Frame paint finished Swingarm and some other bits out to dry Sent from my iPhone using DO THE TON
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    FRANKENHONDA II the 1982 DOHC CB 750F2 Build

    Agree with Popeye, try it out! I'd probably also measure rake, trail, ground clearance and swingarm droop just to put measured numbers on those things rather than calculated ones. Did some calculations with the numbers available and didn't see a dramatic change in trail. Could of course be way...
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    FRANKENHONDA II the 1982 DOHC CB 750F2 Build

    Not sure I understand what the triple tree offset has to do with wheel size? Rake angle, offset, fork length and wheel size all affect trail of course, but given a 17" wheel, different offset would give different trail. Not suggesting he goes chopper with raked triples :) Sent from my...
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    FRANKENHONDA II the 1982 DOHC CB 750F2 Build

    My knowledge about this is mostly theoretical, but from what I understand rake angle in itself doesn't affect handling that much? What affects handling is primarily the trail number (which is of course a product of rake angle). In the "Tony Foale test"...
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    FRANKENHONDA II the 1982 DOHC CB 750F2 Build

    When you say not rideable, do you mean because the forward lean decreases rake angle and thereby trail? To some extent that would be countered by the smaller offset, right? What is the offset in the GSXR triples? I believe stock is 45mm? Sent from my iPhone using DO THE TON
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    1982 GS550M build

    Won't be tearing into the motor more than necessary, but figured it'd be a good time to do valve adjustment while it was out of the frame. Lots of gunky gaskets to clean up, I'd guess it was a while since it was apart... Both intake and exhaust were definitely on the tight side. New shims...
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    1982 GS550M build

    A lot of time has been spent cleaning, sanding and paint prepping. Wheels had been painted previously and the paint was chipping in places so taking all that off took its sweet time. Engine not quite ready for paint yet, but it's getting closer. Really looking forward to starting to put things...
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    FRANKENHONDA II the 1982 DOHC CB 750F2 Build

    Top triple came out great, fits really well with the speedo. That's a good looking unit btw. Nice work! Sent from my iPhone using DO THE TON
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    FRANKENHONDA II the 1982 DOHC CB 750F2 Build

    Good progress! Nice work getting the engine out. Good practice for getting it back in without scratching paint :P Painted covers look great. Did you just degrease and clean or wirebrush/sand as well? Sent from my iPhone using DO THE TON
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    New CNC parts line.

    Looks great! Maybe a "winged" top triple? Lots of people running modern forks and ground clearance is an issue so a product like that would be awesome. Sent from my iPhone using DO THE TON
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    1982 GS550M build

    Today's challenge: Some youtubing, thinking, swearing and sweating later Got my work cut out for me An hour later and still a long way to go [emoji6] Sent from my iPhone using DO THE TON
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    1982 GS550M build

    Work on the frame mods is moving along, seat mount in place. Also played around with using the stock inner fender and plate mount. I then drilled some holes in a piece of flat stock to try out a few different lengths for the rear shock. I figured adding a bit there might give me a bit...
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    FRANKENHONDA II the 1982 DOHC CB 750F2 Build

    I actually think that particular mount is a kit from Japan. Don't know the details or if it's available, might be worth checking? Sent from my iPhone using DO THE TON
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    FRANKENHONDA II the 1982 DOHC CB 750F2 Build

    Nice score on the dampener and fender! No personal experience from mounting steering dampener, but seems most common to mount it off on the right hand side just under the tank. Cleanest solution is in imo in front though, and since you have a 750 and therefore no oil cooler you have the space...
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    1982 GS550M build

    Bit of progress, got the hoop in place and welded up a battery/electrics tray. Electrics on the bike was working but there were some funky balls of electrical tape and a couple of semi-charred connectors so I will be redoing the harness. Also found one mystery component that does not look...
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    1982 GS550M build

    Thanks! I'll do one more check with the straps when I have the hoop tacked in final position. I welded using MIG (with gas), picked up a fairly decent 190 A one. I'd love to learn to TIG down the road, but for a complete welding newb like me the MIG is enough to learn at the moment :) Sent...
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    1982 GS550M build

    Small update... but I did my first real welding on the bike (or anywhere) today and made a combined tank and seat mount. Sent from my iPhone using DO THE TON
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    FRANKENHONDA II the 1982 DOHC CB 750F2 Build

    Now that's something at least I would like to see/hear a video of :) Sent from my iPhone using DO THE TON
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    FRANKENHONDA II the 1982 DOHC CB 750F2 Build

    Haven't used the Kosos myself, but only heard good things. Will probably be going with them when I get going with my build. Seems like a quality brand. I believe Acewell uses similar setup too. Remember to set the valve clearances to .005-.006, not down to .002 as the FSM says. At least that...
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    FRANKENHONDA II the 1982 DOHC CB 750F2 Build

    Fiberglass work looks really good in the pictures at least! Don't recall where that rear disc was from, but some (old Hondas) are apparently really hardened so get some good drill bits :) Re speedo, aftermarket ones like Koso use a magnetic sensor you mount to the one of the brake caliper...
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