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Project My Fizzer

Discussion in 'Your 250cc Projects' started by GreyImport, Sep 24, 2012.

Page 35 of 57
  1. risky

    risky risky

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    nice sound, motor running well, rider needs a shave.
     
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    risky, Jun 8, 2014
    #681
  2. cal

    cal Well-Known Member Premium Member

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    im glad its going well!! bet it feels good grey!
     
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    cal, Jun 9, 2014
    #682
  3. Th3_Huntsman

    Th3_Huntsman Senior Member Contributing Member

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    Nice fly By, not the kind of fly buys you expect from a person of your age...... JK GI :crazypilot:Good to see you on the bike mate!
     
    Th3_Huntsman, Jun 9, 2014
    #683
  4. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    Cheers guys

    Tyson ...wheres the fun if the needle doesnt hit the red occasionally? :D

    Good day out for the mindset ........ we were actually out on the back roads to give ol mate (Grasshopper) a run on the bike as he recently got his Ls ..... and they are his carbys still on there!

    ...and yes of course with all the hooning I ran outta fuel again on the way home .....luckily the Alfa pit crew was on hand to grab the fuel container from home :thumb_ups:

    Old age ...its a wonderful thing ....
     
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    GreyImport, Jun 9, 2014
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  5. ruckusman

    ruckusman White Mans Magic Master Premium Member Dirty Wheel Club

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    what series are those carbs from on Grasshoppers bike? I'm intrigued - they're clearly well tuned, no more chugging after slowing to a stop I assume?
     
    ruckusman, Jun 9, 2014
    #685
  6. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    His bike is a 3LN3 ..... the carbys we can only guess are also.
    Theres none of the previous issues present so its safe to assume my problems are carby related totally.

    The guy we bought the 3LN3 from was a young guy but built bikes for a living ...or some such thing.
    He supposedly did the valves and rebuilt the carbs , among other things.
    I rode the 3LN3 before we started stripping it down and it went like a rocket.

    I have no idea if the jets are changed or wateva else he has done to the internals or the float heights etc.... as much as Id like to know Im not touching them ...they work , so Im not fiddling with them.
     
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    GreyImport, Jun 9, 2014
    #686
  7. Phil

    Phil Senior Member Contributing Member

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    Very wise Mr. Grey, if it ain't broke, don't fix it.
     
    Phil, Jun 9, 2014
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  8. Grasshopper

    Grasshopper Well-Known Member Dirty Wheel Club

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    Enjoyed the ride as well..... Can't wait to get the 3LN3 on the road!

    Grey forgot to include these photos....

    Alfa_and_bike.jpeg

    alfa_and_bike2.jpg
     
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    Grasshopper, Jun 9, 2014
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  9. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    As I understand it Mr Grey's 'chugging' problem has vanished into the ether, at least for the moment, but as shown by a video that he posted, carb slide number one is not lifting. It seems like this might be the last of the Fizzer's carb issues. Over to you Mr Grey; did I get it right?
    cheers all
    Blair
     
    maelstrom, Jun 9, 2014
    #689
  10. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    Yea
    My next move with my carbs is to fit those new float o rings u just sent and fix that slide.... then a test run .... and maybe a bench sync as I think I put them way out with trying to do it with the gauges way back.

    Explain to me exactly wat makes the slides lift ..... or would it just be the slide its self is not moving freely?
     
    GreyImport, Jun 9, 2014
    #690
  11. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    Vacuum.
    You pull the throttle which opens the butterfly. This allows a bit more fuel/air mixture which in turn increases vacuum which in turn lifts the slide (which is why the rubber diaphragm must not have holes in it) which in turn lets more air/fuel in etc
    Possible reasons
    1/ Hole in diaphragm
    2/ blocked vacuum passage
    3/ stuck slide
     
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    maelstrom, Jun 9, 2014
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  12. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    Thanx Mr Green

    :thumb_ups:
     
    GreyImport, Jun 9, 2014
    #692
  13. TechHeadFred

    TechHeadFred Well-Known Member

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    What an epic thread! Great to see you actually riding the bike after all that Grey! :thumb_ups:
     
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    TechHeadFred, Jun 10, 2014
    #693
  14. Linkin

    Linkin The Mechanic Premium Member Contributing Member Dirty Wheel Club

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    Mr. Grasshopper better have his carbs on his bike once I make my way up there, or there will be trouble!

    Or, if all three bikes are working, we will have triple trouble ;)
     
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    Linkin, Jun 13, 2014
    #694
  15. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    Better give me a time span to work with ....things are a little slow in the shed ATM

    :lolsign:

    Actually the carbs wont help much presently as the tank ,seat,gauges, rear wheel etc are missing and its up on chocks ......:help:

    Heres the Grasshopper doing the fizz dance and riding his carbys .....



     
    GreyImport, Jun 13, 2014
    #695
  16. Linkin

    Linkin The Mechanic Premium Member Contributing Member Dirty Wheel Club

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    Not anytime within the next month or two, I would think.
     
    Linkin, Jun 13, 2014
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  17. Murdo

    Murdo The Good Doctor Staff Member Contributing Member Ride and Events Crew

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    September would be good, that is when the Blue Ribbon ride and show weekend is on.
     
    Murdo, Jun 14, 2014
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  18. risky

    risky risky

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    better put the details up murdo and i will bring some extra,s along.
     
    risky, Jun 14, 2014
    #698
  19. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    Hi Fizzer Owners,
    Just to add to the horrible unclear "fuel level should be measured from where" issue, and since all of the posts on this topic are buried in Mr Grey's epic saga. I proudly present - another one. This is from the European Yamaha XJ600 Diversion model. It uses the same carbs as the 250 Zeal except they are 28mm bore.

    [​IMG]
    It is interesting to note that the manual also gives a float level.
    [​IMG]

    cheers
    Blair
     
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    maelstrom, Nov 25, 2014
    #699
  20. ruckusman

    ruckusman White Mans Magic Master Premium Member Dirty Wheel Club

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    good post
     
    ruckusman, Nov 26, 2014
    #700
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