The Lifan engine thread

Discussion in 'Battle Scooters' started by hugemoth, Feb 22, 2011.

  1. YamaGeek

    YamaGeek Skeletor sparklemuffin.

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    If I'm not mistaken the Lifan-ZongShen OHV engines are all based on installation bolt footprint of the Honda 125 vertical cylinder engine from the 1970's. I do believe the SL and XL 100 engines are slightly smaller, but I would also expect the clone engines could be installed with custom mount plates in the Honda vert cylindered 100cc bike frames.
  2. PTC

    PTC Turd polisher

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    FINALLY got around to stuffing the 3 valve lifan in this.
    Pretty fun. Hit 45.
    I’m sure it could pull 55+ with a bigger exhaust, but I just had to keep the stocker.
    Gonna look into possibly making a bigger baffle.
    The stock pipe goes down to penny size! EC274BDD-C263-4B51-8403-18391936B576.jpeg
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  3. PTC

    PTC Turd polisher

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    I know they are the same as the Honda z50/ct70
  4. YamaGeek

    YamaGeek Skeletor sparklemuffin.

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    I'm talking about this engine...
    [​IMG]

    Which is not the same as the Honda clone horizontal engine.

    [​IMG]
  5. PTC

    PTC Turd polisher

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    Gotcha!
    I read too fast
  6. WECSOG

    WECSOG Dirt Road Denizen

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    Nice! ST90, right?
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  7. PTC

    PTC Turd polisher

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    Yessir. Circa 73. Mighty green
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  8. 11motos

    11motos Feral Rider

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    What is the maximum displacement for either one of those designs?
    I mean, including big bore kits available.
    I have seen vertical with 250 factory and horizontal with 140 but nothing higher.
  9. Franque

    Franque Been here awhile

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    229ccs for the vertical motors (the 250 is marketing speak), and you can buy a 190 horizontal motor, but there is a kit that'll make it a 212cc motor, and you can get a 4v head, but you'll need to run an oil cooler. There are Chinese air-cooled 250s, but they're a somewhat redesigned architecture. For that CG you posted, it's either a 223 or 229 depending on who made it, and when.
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  10. fullmetalscooter

    fullmetalscooter Let me take this duck off

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    Anyone post this since it it's running a Lifan engine . Basically it's lifan engine sport 250 cc or is 200 cc ? bike that's 2400.00 off Amazon.com and the kicker is you can buy the after market warranty for $250 for 3 year off amazon to. The same company the insure cell phone etc will give you 3 year of warranty. No it's not a honda but for 2400 what you bitch about . Bonus is that you could ride it and when it brakes down you ve got the warranty for 3 years. Even in 3 year it's still going to be worth at least a grand .


    if you ever wonder how much abuse a Lifan engine can take watch .

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  11. CrapKerouac

    CrapKerouac Long timer

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    In the first video he said it looked better than the 1st gen Kawasaki 250 then proceeds to thrash the hell out of it in the second. Impressive little bike. Richard Hammond rode a Chinese bike to hell and back in one of the road trips in I think, Top Gear? That one held up well, as well. Cheers, good link.
  12. pnw

    pnw Long timer

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    I'm wondering how necessary an oil cooler is for a 140cc and if I should add one to my lifan - one of the 120/125cc with 140cc BBK? This is a good time for me to order one if needed, especially since shipping is so slow these days.
  13. Cat0020

    Cat0020 El cheapo

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    I have an oil-cooler installed with my 140cc engine.. it helps.. but can't really tell how much. Maybe better placement of the cooler can make it more effective.

    IME, 140cc engine has too much vibration, 125cc is much smoother.

    [​IMG]

    [​IMG]
  14. hugemoth

    hugemoth Big Brother is watching you!

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    The 140s require an oil cooler and the crankcase has an inlet and outlet port built into it. The 125 crankcase doesn't have the ports but a cooler kit is made to attach to the cylinder head. Can't hurt to have a cooler unless you snag a line on something and pump oil all over your shoe.
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  15. wanna bECO

    wanna bECO Long timer

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    My self and 2 other friends all have harley's . We all have an oil temp gauge. I have an oil cooler. I run 40 degrees cooler than them when we all ride together. At gas stops and such we will do a temp check and always.... I am 40 degree's cooler. FWIW
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  16. Cat0020

    Cat0020 El cheapo

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    40 degrees out of how much for baseline?
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  17. wanna bECO

    wanna bECO Long timer

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    They will get close to 200 degrees. Sometime a bit more.
  18. pnw

    pnw Long timer

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    Is 200 degrees a good temp? Any idea what would be excessive temp? I have a non-contact infrared thermometer that I can use to check and monitor head temps if that would be representative.


    Edit: I found this with a web search and will go with that for now.
    "Most air cooled engines should never exceed 300 degrees. They usually run around the mid 200's. The reason is because the oil breaks down at 300 degrees."
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  19. Alzero

    Alzero Been here awhile

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    Any information on the Lifan copy of the 250cc Yamaha Virago engine? I see a few for sale on eBay.
  20. 11motos

    11motos Feral Rider

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    Thanks. I was reading and I guess you are right those are all 229cc.
    It looks like the 400cc , like the Shineray, are a newer thing and at a different tier like brands Mash, Herald, CSC etc... and they seem reissues of the old classic 4 valve honda engine with the dry sump.
    But it also seems weird they do not have the same 230cc in 290 or 340 or whatever the next bore step is and no big bore kits for them neither?
    Also could not find any or reliability reports even they seem to make millions of those.