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Project My Fizzer

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

Page 15 of 57
  1. willfzr2503ln

    willfzr2503ln Active Member

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    so i have just pulled a coil out to give it a look . the two wires are held in with a double clip type thing (witch broke at the slightest pressure) they came out very easy once all the tabs had snapped of the clip , going to have to be very careful with the next one , can u suggest any like loctite or somthing i could use to hold the new wires in , the wires are 7 mm and the new ones are also but they came out so easily without the clip . the clip just wedged them in i guess

    20131130_132018.jpg
     
    willfzr2503ln, Nov 30, 2013
    #281
  2. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    So the clips cant be re used?
    What is inside the coil for contact with the lead ... a metal spike ?

    If the clips are rendered useless I would think to epoxy them in , at the top section, would do the trick ..... would seal them also.

    The dyna coils look the goods .... but even as just a replacement as opposed to an upgrade for performance ...... expensive !

    Cheers for the info.

    I wonder if there are any coils from later model bikes that would be a straight swap.
     
    GreyImport, Nov 30, 2013
    #282
  3. Phil

    Phil Senior Member Contributing Member

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    Was checking out some other sites, think it was FZR250 that mentioned many interchangeable parts with more recent Yamaha bikes. Might be worth a look, one chap used goods off an R1 for his fizzer.????
     
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    Phil, Nov 30, 2013
    #283
  4. willfzr2503ln

    willfzr2503ln Active Member

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    i may be able to re-use the clip but more as a cover , the wires were pinched (not to the core) where the clips held them im thinking if i can do the same to the new wires i can just loctite the clip back in
    and yes its a small metal spike maybe 6mm long
    yeah i seen the write up with guy using r1 coils , im after a much cleaner end result he had some sought of sealant to hold them in , if it comes to not being able to use the clip i broke ill try and get some sought of circular wedge to hold them in failing that ill try a few rounds of tape to wedge em in , or loctite
     
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    willfzr2503ln, Nov 30, 2013
    #284
  5. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    Mr Grey mentioned
    "I wonder if there are any coils from later model bikes that would be a straight swap."

    Be wary of fitting the coil-on-cap option from late model efi bikes. I have read some reports about them producing less output than what we use now. I can't substantiate this, but like I said before you need to make informed decisions before replacing what the engineers chose in the first place. I don't recall any of the wsbk optional kit parts ever including ignition coils.

    What you want is a strong spark and to get that you need voltage on the primary side. We all seem to have problems when it comes to having enough amps when cranking to get a good spark. I think the Lithium-Ion batteries have a lot to offer in this respect. Along the same lines I think total loss (the name is the promise) ignition system for race bikes is just madness. For every volt you lose at the battery you lose much more at the spark plug. Also fitting a mosfet regulator/rectifier would be a step in the right direction. Electrics is one of my favourites but only because I like making wiring harnesses. I don't know that much about it.
     
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    maelstrom, Nov 30, 2013
    #285
  6. Murdo

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

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    So what is a 'mosfet' regulator/rectifier?
     
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    Murdo, Nov 30, 2013
    #286
  7. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    So after the 'ride' today I encountered a couple of glitches .....

    Even though rumour has it I called for a pickup so I wouldnt get my bike dirty due to roadworks ahead , I will admit to being a dick and running short on fuel ...... :help:

    I do need to flush out the tank again and the taller internal filter has come adrift.

    I found shifting down a little troublesome (apart from my lack of match practice) and going from 5th to 4th near impossible without stomping on the lever.

    The clutch may need an overhaul and Ill look at that when I fix 3rd gear.
    I need to check the clutch cable and make sure its adjusted correctly (at the clutch end)..... the other problem with the cable is its very very tight around the frame etc , which may be causing a problem.

    The biggest problem though is this sudden lack of power out of the blue
    Its exactly the same as before the carby overhaul so its not a fuel problem.
    The pumps primes perfectly and it starts but its just in "idle'' mode no matter how much throttle or choke or wateva is used .
    And after a short period of time it all works fine again.
    Maybe its something electrical that fails when overheating and works again after some cooling down .... as risky suggests 'overheating coils'
    I have a spare black box and spare coils ..... bit of trial and error I guess.
     
    GreyImport, Nov 30, 2013
    #287
  8. risky

    risky risky

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    i had a yammy 2 stroke once that would drop a cylinder but when battery recharged would go like the hammers. battery ok? coil ok?leccy can test off the bike.
     
    risky, Nov 30, 2013
    #288
  9. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    Yea Ill test the coils with the multimeter when the tank is off

    Battery is 12.7 volts
     
    GreyImport, Nov 30, 2013
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  10. willfzr2503ln

    willfzr2503ln Active Member

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    the shifting arms on these are known to bend i think , i have a similar problem on my street fighter 3ln
    though when i pulled the clutch out i could easily shift all the gears by hand
    you would think that indicates a clutch prob , could be, i would first check the little plastic spacer on the shift rod myn was super gunked up .
     
    willfzr2503ln, Nov 30, 2013
    #290
  11. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    From someone who knows a lot more than me :confused:
    http://www.superhawkforum.com/forums/knowledge-base-40/mosfet-regulator-rectifiers-why-how-25117/

    There is a guy selling Shindengen Mosfet jobbies with weatherpack connectors on eBay
    http://www.ebay.com/itm/SHINDENGEN-...-RECTIFIER-KIT-REPLACES-FH012AA-/380704480069

    Or maybe this one for Yamahas. He has an eBay shop, worth a look.
    http://www.ebay.com/itm/YAMAHA-SHIN...Parts_Accessories&vxp=mtr&hash=item58a3ccf7ca
     
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    Last edited: Nov 30, 2013
    maelstrom, Nov 30, 2013
    #291
  12. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    It should be spotless and all greased up nicely as I had it all apart.
    The lever is pretty loose in sideways movement and I think I may be pushing it inwards with my big foot and hitting the 'balljoint' on the rod when downshifting.
    I might bent the lever a little outwards and maybe throw in a few more spacers.
     
    GreyImport, Nov 30, 2013
    #292
  13. risky

    risky risky

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    test the battery under load and could be a different story.
     
    risky, Nov 30, 2013
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  14. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    Yea that was the plan after sorting the tank tomorrow .... just bought 1oltrs of new fuel (note to Phil) but also 7920mls of beer ... which I am now consuming :D
     
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    GreyImport, Nov 30, 2013
    #294
  15. Phil

    Phil Senior Member Contributing Member

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    Am delighted you got your priorities correct. :D:drinks:
     
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    Phil, Nov 30, 2013
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  16. willfzr2503ln

    willfzr2503ln Active Member

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    would you know of any to fit an fzr 250
     
    willfzr2503ln, Nov 30, 2013
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  17. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    I would just send the guy an email. I am sure he will be happy to help out.
    cheers
    Blair
     
    maelstrom, Nov 30, 2013
    #297
  18. cal

    cal Well-Known Member Premium Member

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    as long as the beer:fuel ratio is correct, bike should run sweet :thumb_ups:
     
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    cal, Nov 30, 2013
    #298
  19. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    So all 4 coils are showing 1.0 ohms primary and zero secondary

    Either I have 4 dead coils or my testing is seriously off

    :headbang:
     
    GreyImport, Dec 1, 2013
    #299
  20. cal

    cal Well-Known Member Premium Member

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    sounds a bit off mate, try the old cranking trick with the plug earthed to the block, blue spark = fine, red spark = weak
     
    cal, Dec 1, 2013
    #300
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