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    My 'home track' is Portland International...

    My 'home track' is Portland International Raceway. It's only ~15 minutes from my house, and is actually a city park. Hard to get more convenient! The noise limit for the night drags is 103 dB. I...
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    Progress - did a 10.755 at 131 mph last night,...

    Progress - did a 10.755 at 131 mph last night, with plenty more to give from both me and the bike. Got popped for noise twice (max 103 dB at my local track) and sent home, so top of the todo list is...
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    Good news! Got the air shifter working, tracked...

    Good news! Got the air shifter working, tracked the problem down to a disconnected lead at the handlebar button.

    From the todo list:

    * bench-test air shifter / identify cause of problem
    ---...
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    A few things, folks had their temperatures...

    A few things, folks had their temperatures checked at the gate, they limited attendance to 100 vehicles, with one driver and one helper each, max. Masks were required for folks not immediately...
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    Jets have already arrived! Assuming the weather...

    Jets have already arrived! Assuming the weather holds, hope to get back to the track the evening of the 24th.

    stetracer, thanks for the Facebook tips. I requested permissions for the Dragbike...
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    Good advice, stetracer, thank you! Yes, I...

    Good advice, stetracer, thank you!

    Yes, I disconnected the cylinder from the shift shaft prior to testing, no sense beating up the shift forks & transmission internals. I talked to the folks at...
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    OK! Air shifter is nearly working now. I'm not...

    OK! Air shifter is nearly working now. I'm not 100% certain, but it looks like the problem is either with the pushbutton switch on the handlebar, or the wiring between the button and the solenoid...
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    Good info everyone, I had not understood that ET...

    Good info everyone, I had not understood that ET timing starts on physically leaving the line, not the green light.

    Heading to the shop tonight with my to-do list from Friday night:
    * bench-test...
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    @rphillips, like I said, room for improvement! ...

    @rphillips, like I said, room for improvement! :)

    And on the bike side, the better jets are on order, and I'm diving into the air shifter this week.
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    Best run: R/T: 0.739 60': 2.002 1/8: 7.672...

    Best run:

    R/T: 0.739
    60': 2.002
    1/8: 7.672 @ 96.17
    1/4: 11.695 @ 120.48

    second best:

    R/T: 0.222
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    Also, found the timeslips ... best one was 11.695...

    Also, found the timeslips ... best one was 11.695 @ 120.48 mph.

    Plenty of room for improvement!
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    Replacing the main jet drain plugs on the carbs...

    Replacing the main jet drain plugs on the carbs by touch. That's pure concentration!

    62568
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    Brass hunt ... Mikuni cone carbs had Keihin hex...

    Brass hunt ... Mikuni cone carbs had Keihin hex mains when I got them. Most of my mains are Mikunis, I need to get a new jet box for Keihins!

    62567
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    First time on the dragstrip!

    I took my first passes last night at Portland International Raceway on the GS drag bike. Good stuff!

    Biggest problem was that I couldn't get the air shifter to work. It's probably something...
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    I've used stands like these in the past for cam...

    I've used stands like these in the past for cam degreeing, to hold the dial indicator: https://www.mcmaster.com/dial-indicator-stands/rigid-arm-magnetic-base-indicator-holders-10/

    (Of course you...
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    New shoe!! 62453

    New shoe!!

    62453
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    New shoe! 62452

    New shoe!

    62452
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    Helpful image for air screw tuning, from the...

    Helpful image for air screw tuning, from the Mikuni VM Manual:

    62406

    I laminated a copy of this and glued it into the inside lid of my toolbox.
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    Ordered up a Mickey Thompson today, thanks...

    Ordered up a Mickey Thompson today, thanks everyone.

    I took the bike out Sunday afternoon to an industrial area we use for shakedown runs. It's close to my house and abandoned on weekends. ...
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    I've done a number of conversions through PBI...

    I've done a number of conversions through PBI Sprockets (https://www.shop.pbisprockets.com/main.sc)

    They've always given great customer service to me: "I've got a 19XX Suzuki YYYY and am looking...
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    @dorkburger I've had that hat since the early...

    @dorkburger

    I've had that hat since the early '80s ... found it a couple of years ago when helping my folks clean out the garage, had to stretch it a bit to fit on my adult head.

    I'm not sure...
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    She's alive!! ...

    She's alive!!


    https://photos.app.goo.gl/7JEpmFic191rV4Xf6
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    @red1100 - I live 15 minutes from PIR, so plan to...

    @red1100 - I live 15 minutes from PIR, so plan to be there as often as I can. Woodburn's not too far away, either, but PIR would be my main spot.
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    Thanks, Rapidray!

    Thanks, Rapidray!
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    Close-up of the caliper carrier. It's ~1/2"...

    Close-up of the caliper carrier. It's ~1/2" aluminum plate. Can you tell I prioritize function over form?

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