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snort'n Norton, the pointless? thread

Discussion in 'The Garage' started by gggGary, Nov 14, 2021.

  1. gggGary

    gggGary On the road of life I'm a speed bump. XS650.com Supporter Top Contributor

    Yup and with many of the same old issues LOL
    I bought a set of Amal Premiers for the last commando go around. Meh. Your experiences may vary.
     
    Adamc, Jan_P, Raymond and 1 other person like this.
  2. Mailman

    Mailman Hardly a Guru Top Contributor

    I bought new Amal’s for my old Bonneville , when I restored it, I always thought they were pretty good carburetors.
    Simple design, easy to work on, the bike ran great. We won’t talk about getting gas on your fingers when you have to use the ticklers them to start up. :laugh2:
    I know the Norton guys love to put a single Mikuni on them.
     
    Adamc, YamadudeXS650C, Jan_P and 3 others like this.
  3. grizld1

    grizld1 Grumpy old man Top Contributor

    The TM36/68 spigot OD is only 2 mm. fatter than the spigot on the VM34 and will squeeze into the same mount without too much encouragement. Go on, uncouple a flat slide pumper and hang it, you know you want to! Those radial smoothbore type carbies are a little hefty, a bit of back support wouldn't be a bad idea. I didn't believe it either when I was told, but that's the easiest carburetor to tune that you've ever had.

    So the PO had a bigass MJ in the VM34, did he? Means either he didn't change much and there's still a Q2 NJ in there, or he went too small on the NJ and tried to compensate with a fat main. Don't know who had that bike, so I'll withhold comment.
     
    Last edited: Nov 24, 2021 at 8:11 AM
    Adamc, timbeck, Mailman and 1 other person like this.
  4. gggGary

    gggGary On the road of life I'm a speed bump. XS650.com Supporter Top Contributor

    Saw the FCR's TMs when I was rooting round for the test tank in the shed yesterday.
    [​IMG]
     
    Last edited: Nov 24, 2021 at 9:18 AM
    grizld1, jetmechmarty and Mailman like this.
  5. Zonie

    Zonie XS650 Member

    No NOT put one of those in-line check valves on your Norton. Sort of line a hand Granade with the pin pulled. They will fail maybe not right away but the will and take your engine with it. Check AMR's Nortech conversion. They take your timing cover and modify it so it works like a Mk3 Norton set up.
     
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  6. grizld1

    grizld1 Grumpy old man Top Contributor

    FCRs? You lucky dog, that's the gold standard, no doubt about it! Throttle shaft rides on needle bearings, slide rides on nylon rollers, Keihin spared no expense. Too rich for my blood new and never found an affordable used set either, but I've looked and drooled a bit.
     
  7. gggGary

    gggGary On the road of life I'm a speed bump. XS650.com Supporter Top Contributor

    Oops called it wrong, what ever those carbs you sent me, what 3-4 years ago? are. LOL
     
    Adamc and arcticXS like this.
  8. gggGary

    gggGary On the road of life I'm a speed bump. XS650.com Supporter Top Contributor

    I see the (72 only) crankcases will accept a reed valve in the breather line to improve oil "control" . Funny how these big parallel twins all have the same issues.
     
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  9. jetmechmarty

    jetmechmarty Project collector XS650.com Supporter Top Contributor

    Do you mean 360 degree twins and their crankcase pressure issues?
     
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  10. gggGary

    gggGary On the road of life I'm a speed bump. XS650.com Supporter Top Contributor

  11. Raymond

    Raymond XS650 rider & fettler XS650.com Supporter Top Contributor

    Hermetite red? For make the good running, please to use liberally.
     
  12. 2XSive

    2XSive At least one screw loose behind the handle bars XS650.com Supporter Top Contributor

    439
    1,560
    143
    Michigan
    Congratulations Gary! Sounds great! Just for the record, I didn't do anything to that bike prior to it shipping out to you. That's my way of disclaiming any responsibility for whatever is plastered all over that intake.
     
  13. grizld1

    grizld1 Grumpy old man Top Contributor

    Those carbs are Mikuni TM36/68 4-stroke flat slide pumpers, Gary. They're from the Radial Smoothbore design group. In their (questionable) wisdom, Mikuni gave them the TM designation instead of RS because as sold they're set up for single carb use, and RS carbs are configured only in banks of 4.
     
    Adamc and gggGary like this.
  14. gggGary

    gggGary On the road of life I'm a speed bump. XS650.com Supporter Top Contributor

    [​IMG]
    With all that "stuff" cleaned out, the float level set correctly, and a few other oopsies rectified, it started and ran up and down the road a mile or so today, all seems well, and it's charging too. That's enough for me to proceed with getting this old gal ready for next years riding. @GLJ would it be Hoyle to ride a Norton to an XS650 shootout :shrug: ?
     
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  15. Downeaster

    Downeaster Everything in XS Top Contributor

    I'm pretty sure you'd be welcome riding a Norton anywhere!
     
    Team Junk, Adamc, grizld1 and 4 others like this.
  16. Mailman

    Mailman Hardly a Guru Top Contributor

    Kinda like bringing a gun to a knife fight ain’t it? Hardly seems fair. :laugh2:
     
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  17. GLJ

    GLJ Never go faster than your guardian angle can fly. Top Contributor

    I don't see why not, it is a vertical twin. 2,000 smile trip on a Norton, what could possible go wrong?
     
    Team Junk, Adamc, grizld1 and 2 others like this.
  18. grizld1

    grizld1 Grumpy old man Top Contributor

    As long as the "shootout" doesn't include running an endurance event against competently fettled Yamahas, you'll be fine, Gary. If it does, you may be mocked and reviled. Hey, did I ever tell you the one about the certified Norton mechanic, the University of Illinois graduate electrical engineer, and the Norton Electra? The Prince of Darkness ruled them all, and he didn't need no stinkin' ring to do it.
     
    MrBultaco, GLJ, Adamc and 3 others like this.
  19. WideAWAKE

    WideAWAKE Single Fins and Twin Cylinders

    Kinda meant boring in the sense that you just buy it and park it in the garage and ride. No involvement in making it come to life (to me the fun part).
     
    Adamc, Raymond, gggGary and 1 other person like this.
  20. gggGary

    gggGary On the road of life I'm a speed bump. XS650.com Supporter Top Contributor

    This side of the pond orange RTV is the universal sign that a bodger has hacked on the assembly.
     
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