Bought a 48 Whizzer

Discussion in 'Whizzer Motorized Bicycles' started by jbcruisin, Feb 11, 2012.

  1. jbcruisin

    jbcruisin Member

    I just picked up an original 48 Whizzer. The engine will be going to Quenton for overhaul & performance work. I'll post as the work is done. I'm not going to restore it because it's in very good condition.

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  2. jbcruisin

    jbcruisin Member

    Here's some pictures of the unusual handlebars & throttle controls. The handlebars are low like drag bars but do have curves in them. maybe one of the Whizzer experts knows more about them. It also has a speedometer that works.

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  3. chainmaker

    chainmaker Member

    Thats a nice looking bike Jay. Cant wait to check it out.
     
  4. jbcruisin

    jbcruisin Member

    You can ride it when we get together. it'll be fast :)
     
  5. Quenton Guenther

    Quenton Guenther Motored Bikes Sponsor

    Hi Jay,

    I actually made space on my workbench to work on your new "rocker-ship". I located a German needle bearing crankshaft [in my parts bins] that I just had upgraded [new bearings & pin].

    I also found a new Mikuni carburetor in stock I was going to use on another project, however I think it should be on your project.

    Also located an original high compression head that I plan on milling and reworking later today for your bike.

    Have fun,
     
  6. jbcruisin

    jbcruisin Member

    Oh boy, the fun has started & the engine's not even there yet. I'm going to pull it out & box it today.
     
  7. Mike Notigan

    Mike Notigan Member

    Jay,
    That's a beautiful bike! The low riser handlebars gives your bike a completely different look, one I've never seen before on the Whizzer. It gives it that racer look without the severe drastic downsweep more seen on the board track racers. Good luck with her!
    Take Care,
    Mike
     
  8. jbcruisin

    jbcruisin Member

    I sent the engine to Quenton today.
     
  9. Quenton Guenther

    Quenton Guenther Motored Bikes Sponsor

    Motor is now on the workbench!

    It is going to be very over-square, and should rev higher than most vintage Whizzer motors.

    I think, as we discussed, I will use a vintage "bored out" Tillotson carburetor instead of the Mikuni. The Tillotson was removed from a Cushman Eagle motor, bore increased, and has the major advantage of the adjustable main jet.

    Have fun,
     
  10. jbcruisin

    jbcruisin Member

    Is it the carb you showed me at Portland last summer.
     
  11. WZ507

    WZ507 Member

    Jay, Are you going with the H cylinder or opting for a later style larger port cylinder for the project?
     
  12. Quenton Guenther

    Quenton Guenther Motored Bikes Sponsor

    Hi Jay,

    I think it is the same carburetor, it is the one I got from Ron Dow a couple of years ago.

    The cylinder is a highly modified late "H" cylinder with a larger intake port than the stock "300". The exhaust is opened to the limit and almost as large as the later cylinder. Using a modifiied Clinton piston, 27 MM intake valve, and 25 MM exhaust valve. Original needle crankshaft rebuild, & valve work done by Dave Reese. Dave also bored the cylinder for the Clinton O.S. piston. I will do some additional port work and re-work a "300" head.
    Lots more to do to his motor including modifying the valve train [progressive springs, lightened lifters, etc], camshaft options, tuned exhaust, and ignition module.

    Have fun,
     
  13. jbcruisin

    jbcruisin Member

    I bought one of those roller bearing cranks on Ebay. It came today. You want me to send it along with the extended breather & module? You can check it out & use it on my bike or give it back to me when you ship my engine back. I don't care if you use it on my bike. I just thought maybe you'd want to check out the ones they are selling on Ebay.
    Jay
     
  14. Quenton Guenther

    Quenton Guenther Motored Bikes Sponsor

    Are they the original German needle bearing crankshaft or re-pop?


    Have fun,
     
  15. jbcruisin

    jbcruisin Member

    must be a re-pop. Bought it from Wildfire.
     
  16. Quenton Guenther

    Quenton Guenther Motored Bikes Sponsor

    Send it with the other parts and I will look at it.

    Looks like your motor will only be a 155 CC [154.917].


    Have fun,
     
  17. jbcruisin

    jbcruisin Member

    The state issued me an antique title & license plate for my bike. I picked it up today.
     
  18. MotorbikeMike

    MotorbikeMike Member

    Good Job Jay! I guess I need to put some pics up of my '74 Schwinn, with modified J engine ? I have put a bunch of old left-over parts, and a new engine by Quenton on it?

    I just found some really important info for you (and some others)!
    This info is "Hot off the Press" (actually fresh from the eMail) Written in the finest Engrish of the time, prepare yourselves accordingly.

    From 1962 Honda motorcycle Handbook

    Rules of the Road to keep in mind.


    1. At the rise of the hand by Policeman, stop
    rapidly. Do not pass him by or otherwise disrespect
    him.

    2. When a passenger of the foot, hooves in sight,
    tootel the horn trumpet melodiously at first. If he
    still obstacles your passage, tootel him with vigor
    and express by word of mouth, warning Hi, Hi.

    3. Beware of the wandering horse that he shall
    not take fright as you pass him. Do not explode the
    exhaust box at him. Go soothingly by.

    4. Give big space to the festive dog that makes
    sport in roadway. Avoid entanglement of dog with
    wheel spokes.

    5. Go soothingly on the grease mud, as there
    lurks the skid demon. Press the brake foot as you roll
    around the corners, and save the collapse and tie
    up.

    Properly applied, these 'Words of Wisdom', should help light your path. And help you have a good day of riding.

    Mike
     
    Last edited: Feb 29, 2012
  19. jbcruisin

    jbcruisin Member

    I got the engine back from Quenton yesterday. I got it running today. I didn't take it out for a ride but it seems strong. It has one of the "Weber style" ground cams that we now have.

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  20. jbcruisin

    jbcruisin Member

    Had it out today for the first time. Need to dial in the carb but has lots of power. Bonnie heard it run & said I need to put a video on so everyone can hear it.

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