Flywheel & Stator 4 speed

Discussion in 'FOR SALE on eBay' started by farm dog, Nov 3, 2020.

  1. farm dog

    farm dog Member

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    Theirs a seller on the ST 90 site selling a stator & flywheel MIT item #284026055390 , also just a flywheel also a MIT . For ct 70
     
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  3. Clayton

    Clayton Active Member

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    What’s the ST90 site?
     
  4. Tripod

    Tripod Active Member

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    Ebay.;)

    Looks to me like its a CL70 stator, but its hard to tell.
     
  5. kirrbby

    kirrbby Well-Known Member

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  6. Tripod

    Tripod Active Member

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    40$ nice.:cool:
     
  7. farm dog

    farm dog Member

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    Was not for sure which bike, but knew not a ST 90. Just saw the $
     
  8. lukelaw1

    lukelaw1 Active Member

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    i dont think it's cl70 leads appear too long, the blue should have a double female
     
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  9. kirrbby

    kirrbby Well-Known Member

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    Looks like it's gone now...whatever it was.
     
  10. lukelaw1

    lukelaw1 Active Member

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    the laid back-cool-sheepish smile emoji by tripod makes he think he is the proud owner of a $40 mitzi flywheel.
     
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  11. Tripod

    Tripod Active Member

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    Well, its a Mitsubishi flywheel for a 4 speed. I sure as hell cant tell what the stator goes to. Has a neutral wire, black, yellow, white, and maybe brown. All with single female ends. There is no condenser on the stator plate, and the condenser hold down is in use by the felt bracket. Everything looks original and not hacked up.

    Its not CL70 like Lukelaw1 stated. Its too long for a CT/SL/XL. Did a C70 come with this?

    I'll post up pics if needed. Bottom line is the flywheel was about $50.
     
  12. racerx

    racerx Administrator
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    I suspect this is a CL70 stator. That's a good news/bad news situation. The bad news is that you are "stuck" with the CL70 wiring & remote condenser, along with battery to make the ignition work.. The good news is that it's a 6V/full wave...everything runs off of battery power and having two coils to power the entire system, in this configuration, should deliver ~3X the total system wattage of a CT/SL/XL 70 alternator. Remember, the CL70 was a road-oriented model, marketed to an older audience; decent road lighting was essential even 50 years ago.

    6V electrics limit your component choices circa 2020. That said, If you can come up with 6V LEDs and a 6V electronic flasher relay, you can fairly impressive lighting...using the OEM Honda alternator.
     
  13. Gary

    Gary Well-Known Member

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    I just bought this XL 70 stator which turns out is the same part number as the later H models. Those CL winding's do look a heavier gauge. My plan is to see if my NOS S65 Nippon Denso flywheel will fit.

    stator.jpg
     
  14. allenp42

    allenp42 Well-Known Member

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    Late to the party but I'll share what I know and have seen in the wild.

    CL70 - Everyone I've seen and touch had 4wires, and as Lukelaw pointed out, one of the leads should have a double bullet connector. Both coils are identical - even the dc resistance (when using an ohm meter) are identical. The wire ga. is a bit heavier as compared to a CT70. Another tidbit, the stamped numbers on the stator plate and flywheel is usually 1K10L. I even tested the timing advance on a CL70 Mitsu flywheel it noted the same amount of timing advance as a run of the mill HK0/HK1 Mitsu flywheel. The stamped number on a HK0 is 1K15L and 1K17L for a HK1. No difference in performance (CL vs. CT ) that I could see.

    The only UK stator I've touched did have 5 wires, however, it had a pri coil, a lighting coil and a condenser. If needed, I have the resistance values that I can send your way if want to try to determine what you have.

    All Mitsubishi Flywheels I have seen, including a couple from the UK have an ID of ~82.5mm, Hitachi is ~84.75mm, and ND is ~85mm.

    Gary, I have an ND flywheel and it fits an H crank like a glove. Since the ID is close to an hitachi, I thought about trying it with a hitachi stator but never got around to it.

    I'm attaching a pic of a CL70 that I had.
     

    Attached Files:

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  15. racerx

    racerx Administrator
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    It's worth mentioning that the flywheel backspacing may be make/break. The magnets must align with the coils and without coil-to-flywheel contact, anywhere.
     
  16. allenp42

    allenp42 Well-Known Member

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    Excellant point. During my next break from Mr. Stihl, pretty sure I have that. Off hand, I know the 3 speed and 4 speed Hitachi are the same with the points height being the only difference. Will post the dimensions later this afternoon.
     
  17. allenp42

    allenp42 Well-Known Member

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    There is not much variation in the center line of the coils between ND, Hitachi and Mitsubishi.

    As measured from the back mounting surface on the stator plates, the approximate centerline of the coils is:

    Hitachi 3 sp & 4 sp*: ~19.25mm

    Mitsubishi: ~18.0mm

    ND: ~19.75mm

    All stator plates measure ~7.0mm in thickness, so subtract 7mm to get the centerline on the front side.

    The H plate has a lot of divots so my measurements are from non recessed points. Put another way, I treated it as if the front surface was flat like a K0 plate.
     

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