Something completely different

Discussion in 'Some Assembly Required' started by fast1075, Aug 11, 2018.

  1. fast1075

    fast1075 Not a Lemming Supporter

    Joined:
    Dec 28, 2013
    Oddometer:
    1,790
    Location:
    Flaw'da
    At lunch I worked on the temporary fuel tank.

    temporary fuel tank.jpg
    JagLite likes this.
  2. villageidiot

    villageidiot Long timer Supporter

    Joined:
    Apr 29, 2010
    Oddometer:
    11,198
    Location:
    Orange County, CA
    Helps with wheelies too!
    Fast Idle and fast1075 like this.
  3. Salsa

    Salsa Long timer

    Joined:
    Dec 12, 2006
    Oddometer:
    1,204
    Location:
    Arizona, Alaska
    Put some beer labels and show it off.

    Don
    villageidiot likes this.
  4. DiggerD

    DiggerD DougFir from SuperDuke Days

    Joined:
    Mar 14, 2013
    Oddometer:
    4,359
    Location:
    Mid Wet Or A Gun
    Got me a small clam shell Weber Bar-B that looks something like that.

    Starts hard sometimes in the wind.

    It's fun when the fumes build up too much and goes BOOM...when it does fire off.....just sayin.. so you know if you hear a BOOM...:lol3:lol3
  5. fast1075

    fast1075 Not a Lemming Supporter

    Joined:
    Dec 28, 2013
    Oddometer:
    1,790
    Location:
    Flaw'da
    Had an idea. If I make a spacer that fits under the reed cage with a port in it, it should see crankcase pressure. I have a company a few blocks away that does precision water jet work. I'll stop by and find out how much for them to make one. All I need for a template is a reed cage gasket, and I have one of those.

    If I had a mill, I would do it myself. But no mill.
    Fast Idle and JagLite like this.
  6. villageidiot

    villageidiot Long timer Supporter

    Joined:
    Apr 29, 2010
    Oddometer:
    11,198
    Location:
    Orange County, CA
    dont necessarily need a mill...... need a flat plate about 1/2" thick, a set of transfer punches, a bunch of drilled holes and a file. a vixen if you wanna take off the material nice n smooth. bonus would be a bandsaw, and or a scroll saw, would save time swinging a file.

    but yes, in the intake tract on the port side of the reed valve should have enough pulse.
    Fast Idle and JagLite like this.
  7. DiggerD

    DiggerD DougFir from SuperDuke Days

    Joined:
    Mar 14, 2013
    Oddometer:
    4,359
    Location:
    Mid Wet Or A Gun
    How di it work before you got this scooter ?
  8. fast1075

    fast1075 Not a Lemming Supporter

    Joined:
    Dec 28, 2013
    Oddometer:
    1,790
    Location:
    Flaw'da
    I built it from parts from two completely different scooters. The scooter the engine came from had the gas tank mounted under a cowl behind the seat. The frame I used had a GY6 50cc 4 stroke motor. The pulse pump worked fine with the 4 stroke 50 with the tank in the floor board.
    JagLite and DiggerD like this.
  9. fast1075

    fast1075 Not a Lemming Supporter

    Joined:
    Dec 28, 2013
    Oddometer:
    1,790
    Location:
    Flaw'da
    I got the temporary test tank hooked up today. It is amazing how an engine can run when it gets enough fuel. Sounds sweet when it gets on the pipe. Cruises nicely at "around town" speeds. I installed a nice phone holder and used a "speedometer" app. I wound it up for s short distance. Went 42 mph. The CVT definitely needs some tuning. The carb is working ok. Want to make sure it is "safe rich".

    Headlights quit working. Hope it didn't lose the stator. Definitely going to figure out the fuel pump thing. Not going to leave that top box on it. But for sure, the gas tank does not have a venting problem, it was all along non functional fuel pump(s). I ordered a 3" x 1/2" x 12" piece of T-6061 from McMaster Carr to build a reed block spacer to see if I can get the pulse pump to work right.

    test tank.jpg
    wilfred, JagLite, Tanshanomi and 2 others like this.
  10. fast1075

    fast1075 Not a Lemming Supporter

    Joined:
    Dec 28, 2013
    Oddometer:
    1,790
    Location:
    Flaw'da
    I had located a speedometer set in MPH. Came in yesterday. Today I installed it. Of course the wires had to be repinned. The only one in the right place was ground. I was afraid the tall bar risers would be too tall for the stock type speedo kit. Looks good to me. Raining on and off today, so my test ride was short. It is semi-accurate (ish). Will need a slightly shorter speedo cable at some point. new speedo.jpg

    MotoGP race weekend, so I might fiddle with it some more after the race. Getting there slowly. I bought some new clips and screws for the body work. Thinking about buffing the existing finish and use some strategically placed decals for the "survivor" look. The new phone holder works great. I will add a USB power supply.
    JagLite, villageidiot and Fast Idle like this.
  11. fast1075

    fast1075 Not a Lemming Supporter

    Joined:
    Dec 28, 2013
    Oddometer:
    1,790
    Location:
    Flaw'da
    After the race (Go Rins!) I stuck the battery box back on and went for some more miles. 20 miles this time before I had to dodge a thunderstorm (spring in Flatistan). Runs better and better. This time I closely compared my new speedometer to my GPS. For all practical purposes it is dead nuts on. On a level spot with no head wind it went 44 mph. Goes back on the table tomorrow to get some maintenance and work on the CVT. I ordered a new belt and a set of 4g Dr Pulley sliders. That should help it off the line quite a bit. It doesn't suck taking off, but better will be better.

    I have all the black plastics off, so they get attention before they go back on.

    moar break in.jpg
  12. fast1075

    fast1075 Not a Lemming Supporter

    Joined:
    Dec 28, 2013
    Oddometer:
    1,790
    Location:
    Flaw'da
    Pulled the CVT apart today. Better than I had expected. The belt was an odd combination of utterly worn out yet in no observable danger of breaking. The parts were not nearly as grungy as expected. Variator has some wear, but it is getting reused. The belt was so worn that it hadn't been anywhere near the top of the variator face in a long time. It already had 4 gram rollers, not badly worn.

    The belt was supposed to be 16.4 mm wide. Barely made 13. It was floppy loose. I wet sanded the variator faces and buffed the boss to a nice finish. Belt and sliders come in tomorrow. The bare bones concept shines with ease of service. I had the thing apart in maybe 5 minutes, going slow. The cover wasn't even stuck.

    Still all up in the air over the fuel issue. The plug is the light chocolate color I was looking for. I have a spare reed block and manifold coming so I can examine the vacuum port idea without possibly ruining the operational parts. Electric is also an idea if I can find a pump small enough, without excessive fuel pressure. Any ideas? I had thought of a Honda Ruckus pump, but it isn't straight forward electrically.
    JagLite and rantingsmith like this.
  13. TerraRoot

    TerraRoot Adventurer

    Joined:
    Jun 8, 2009
    Oddometer:
    68
    JagLite likes this.
  14. fast1075

    fast1075 Not a Lemming Supporter

    Joined:
    Dec 28, 2013
    Oddometer:
    1,790
    Location:
    Flaw'da
    Digging a little deeper into the CVT. Someone had worked on tuning it in the past. The driven face/clutch has a "red" (stronger than stock) spring to help take-off. My parts will not make it today due to a routing error. But should be here tomorrow. It is resting comfortably on the bench for now.
    JagLite and Fast Idle like this.
  15. fast1075

    fast1075 Not a Lemming Supporter

    Joined:
    Dec 28, 2013
    Oddometer:
    1,790
    Location:
    Flaw'da
    After further consideration, I am going to solve the fuel issue by using a K&N Model 81-0400 electric fuel pump, rated at 1-2 psi. I should have it in and tested by this weekend.
    JagLite, Fast Idle and Tanshanomi like this.
  16. VX Rider

    VX Rider Long timer

    Joined:
    Dec 11, 2015
    Oddometer:
    5,643
    Location:
    Phoenix
    To freshen the black plastics....Black Kiwi will buff to a nice lustre and re-black them pretty well
  17. fast1075

    fast1075 Not a Lemming Supporter

    Joined:
    Dec 28, 2013
    Oddometer:
    1,790
    Location:
    Flaw'da
    As in KIWI shoe polish? :photog
  18. VX Rider

    VX Rider Long timer

    Joined:
    Dec 11, 2015
    Oddometer:
    5,643
    Location:
    Phoenix
    yep...it really does work great...

    also cheep furniture polish....
  19. fast1075

    fast1075 Not a Lemming Supporter

    Joined:
    Dec 28, 2013
    Oddometer:
    1,790
    Location:
    Flaw'da
    My newest fuel pump came in today! I still plan on solving the "how to make the pulse pump work on my engine" thing. Just Because! I figured out a place on the reed cage to drill a port, which has to match up to a threaded hole in the manifold so a fitting can screw in. I hit rubber when I drilled on a stock manifold. However, an aftermarket manifold is entirely aluminum. So, one of these days I will run across one and try it. I have some 1/16' pipe fittings and a 1/16th" taper pipe tap (left over from my nitrous oxide dragbike days) that should fit in the area needed. No crankcase shenanigans required.

    Anyway, it gets the K&N pump. I will power it from my tail light circuit.

    fuel pump.jpg
    JagLite and Fast Idle like this.
  20. fast1075

    fast1075 Not a Lemming Supporter

    Joined:
    Dec 28, 2013
    Oddometer:
    1,790
    Location:
    Flaw'da
    Mounted the fuel pump. Just need to pick up some fittings, and wire it up. Fuel tank is back where it belongs. The fuel gauge even works now !

    fuel pump mounted.jpg
    JagLite likes this.