Pull start CT90 and other performance enhancements

Discussion in 'Battle Scooters' started by GR0NK, Apr 21, 2010.

  1. Mr. Fisherman

    Mr. Fisherman PROUD 2B Riff Raff!

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    I have a camo CT90 that would love this treatment....

    :lurk

    Looking forward to the progress and the how too. If I can I may well follow your lead.

    Love the idea.
    #41
  2. GR0NK

    GR0NK Got some screws loose!

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    Don't be shy to post a pic. It would maybe give me an idea.

    I have found a powdercoater with an oven big enough to fit the frame. He will sandblast and powdercoat for $250. Right now I'm thinking a satin black or gloss black if the satin is not doable. I think the frame needs some work in the battery box area first so I have to get that sandblasted first so I can weld some new metal in there.



    Sean :bmwrider
    #42
  3. Mr. Fisherman

    Mr. Fisherman PROUD 2B Riff Raff!

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    Not the greatest pic... I will try to find the others. The better ones are on my laptop and I am waiting on a replacement power supply for it.
    This was a pretty well done job. I need to seal the tank as it is rusting and I am having a hard time keeping it running. But it sure is fun. It would rock with the upgrade you are planning. I am going to have to look for one of those engines :nod.

    [​IMG]
    #43
  4. bigalsmith101

    bigalsmith101 Been here awhile

    Joined:
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    He's completely rebuilt this bike. It was running a standard 90cc honda motor in it until the engine blew. Completely f'ed piston (shattered) and gnarled connecting rod.

    [​IMG]

    Check it out NOW. It now has a new 140cc lifan chinese clone.

    [​IMG]

    His comments were "I LOOOOOOVE the new engine! Wasn't able to to a top speed test today, but 3rd will get me going above 50mph, and 4th still has plenty of pull and *should* get it to 75mph!" and
    "The new engine is getting about 110mpg!"

    With the standard carb mounting
    [​IMG]

    Flipping the Carb
    [​IMG]

    Modifying the frame cover to fit the carb cable/fuel line
    [​IMG]

    The guy just graduated with a engineering degree. This is a hobby of his.
    #44
  5. Speedo66

    Speedo66 Transient

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    I think at 75MPH I'd want a little (a lot?) more brakes and suspension.

    Just about doubling the top speed with no other changes is somewhat dangerous.
    #45
  6. GR0NK

    GR0NK Got some screws loose!

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    That's a sharp looking bike. :clap Always like seeing them in colors they were not offered in. I thought about the clone engines but I really wanted to keep the dual-range transmission. If it can hit 50-55 mph with the new motor I'll be happy.



    Sean :bmwrider
    #46
  7. bigalsmith101

    bigalsmith101 Been here awhile

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    My friend lives in downtown Seattle, so his main focus is kickass gas mileage in the city, cheap and easy parking, and low cost of transportation. His little honda does it all. I doubt that he regularly tops 55 in normal traffic, but now has more options when he is commuting and doesn't have to be as unsafe when traveling on faster streets. Local 55mph highways are now an option as well.

    Better brakes would be a huge benefit though!

    --Alex
    #47
  8. YamaGeek

    YamaGeek Ancient trailbike padwan

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    I concur, although I'd think the Lifan 140 would be happier at an average of about 50 mph. Just from my own experience I'd say that the claim of 110 mpg would be extremely optimistic, as my 100 cc converted LifanHaha gets an average of just below 100~90 mpg.

    My bike's smallish drum brakes and limited suspension travel were part of the reason why I went with the 100 c.c. engine, The other being not needing the oil bypass conversion, and there being a ton of parts available for 110/100 cc Lifans.
    #48
  9. GR0NK

    GR0NK Got some screws loose!

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    That's neat. Urban assault vehicle.:D

    I'm planning to mount mine to the front of my motorhome with a similar rack. It's a lot more fun venturing around on the CT than pedal bikes and it's allowed in the parks because it's street legal.:deal



    Sean :bmwrider
    #49
  10. Mr. Fisherman

    Mr. Fisherman PROUD 2B Riff Raff!

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    I'll get some better pics later... that one does the paint job no justice. It really was done pretty well.
    #50
  11. Mr. Fisherman

    Mr. Fisherman PROUD 2B Riff Raff!

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    Looking for updates on your project.
    I need motivation.... :lurk
    #51
  12. GR0NK

    GR0NK Got some screws loose!

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    Well I sorta stalled on it because of other stuff needing attention, mainly prep on my bike and training for an 800km one-day rally I'm doing in two weeks. Also have a couple friend's bikes in the shop for some repairs.

    But as far as the CT goes, I do have some news. My buddy has been working on making his own electro-plating setup, the same buddy who is restoring his 1964 CT200. He ultimately wants to nickel-plate a bunch of stuff on his. Part of the process is to first copper plate the parts he wants to nickel plate. How would a satin-black powdercoated frame with copper plated wheels, spokes and triple clamps look? Yeah! :wink:

    When my buddy talked to the powdercoater he mentioned I wanted to do black and the powdercoater said he had a surplus of satin-black (hot rod black) so I lucked out. Now I just have to find time to finish disassembling the frame so I can have it blasted and powdercoated. Unfortunately I'm out of town all this week for work so that's gonna take a while. I don't think I can really come back to this thing for another three weeks or so when things start slowing down for me.



    Sean :bmwrider
    #52
  13. emergencycle!

    emergencycle! n00b

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    Any progress?
    #53
  14. GR0NK

    GR0NK Got some screws loose!

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    Unfortunately not at this time. It's looking like a winter project now.



    Sean :bmwrider
    #54
  15. GypsyWriter

    GypsyWriter Sarah

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    I'd love to see any progress you may have made to the CT. :ear
    #55
  16. GR0NK

    GR0NK Got some screws loose!

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    Yeah it's in a box, literally. I sold the house and move within the month. My buddy with the 1964 C200 is going to take it to his shop for now so I can finish it as I won't have a garage yet at the new place. Good news is I get to build a garage so it's getting everything I always wanted. In-floor heat and a urinal! LOL. :D

    I promise I'll get to this thing again but I just have too much other stuff going on.



    Sean :bmwrider
    #56
  17. btcn

    btcn Long timer

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    Is there anything better than building your own garage? I love doing this, especially if you have a nice budget.
    #57
  18. penth2o

    penth2o 1975 R75/6

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    Hold ctrl & tap the + sign to enlarge pic.
    ctrl - to downsize.
    #58