The Lifan engine thread

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

  1. Sam Bateman

    Sam Bateman Adventurer

    Joined:
    Sep 14, 2012
    Oddometer:
    18
    Location:
    Arvonia, Virginia
    OK Thanks, that was kinda what I was thinking as well.
    I'm gonna try it and see how it works.
    Really anxious to see how this 125 package will work on the CT90. I've read good things about the conversion and the Lifan seems like a super value.

    Sam Bateman
    Arvonia, VA
    #41
  2. Mini Trail

    Mini Trail n°°b

    Joined:
    Jun 27, 2007
    Oddometer:
    2,325
    Location:
    West Tennessee
    Great news about the incredible mileage you got from the 200. I understand that the 200cc engine will fit my CL100. I actually considered that option rather than splitting the cases (again) to replace the kick start shaft but I worried about the reliability of the Chinese engine.

    Why is the Lifan engine a pushrod design? Is that a copy of a particular Honda? Every Honda mini bike, motor bike, 3-wheeler etc has been OHC. It almost seems like a downgrade to the CL100.
    #42
  3. hugemoth

    hugemoth Long timer

    Joined:
    Sep 6, 2007
    Oddometer:
    3,081
    Location:
    In the TARDIS
    Lifan actually makes both OHC and push rod 200s but the push rod engine is the most reliable and biggest seller. It's an upsized clone of a Honda CG125 engine that was/is used in bikes that were never imported to the US.
    http://en.wikipedia.org/wiki/Honda_CG125

    The only drawbacks to push rod engines is the RPM can be limited by the weight of the valve train (valve float), and a bit of clicking from the rockers. Still the red line is somewhere above 8,000 RPM. The advantage is there is no cam chain and tensioner to adjust or fail.

    #43
  4. minimotos95

    minimotos95 what bike is next?

    Joined:
    Dec 25, 2008
    Oddometer:
    201
    Location:
    montrose co
    My lifan 120(1 down 3 up manual clutch) is running strong and starts up easier then any honda motor i've had... however like most lifans and some genuine Honda's the trans is clunky and is hard to find nuetral with, the transmissions with all the gears up seem to be more solid in my experience.

    with my 3.00-12 rear tire and i think 16-32(i'll edit this next time i look if it's wrong) gearing it tops out at 53mph GPS on a good day limited by RPMs.... it really loves to cruise at ~38mph, it's fine at 45 but i don't like it revving that high for more then a few miles
    #44
  5. hugemoth

    hugemoth Long timer

    Joined:
    Sep 6, 2007
    Oddometer:
    3,081
    Location:
    In the TARDIS
    I took the 140 engine apart to find out what was causing it to jump in 1st gear. Found the shift drum stopper bolt had come loose witch is a pretty common problem on the horizontal Honda engines. Being the curious type I went ahead and split the case to check the gears, shifting forks, etc., and all was well. Ordered a gasket set for $12.50 including shipping.

    One thing I did find is a bit of wear on he center ridge of the cam chain guide wheel (plastic) that fits inside the cylinder casting. I'll replace it although it would probably work fine as is.
    #45
  6. Sparke

    Sparke Been here awhile

    Joined:
    Jul 29, 2005
    Oddometer:
    469
    Location:
    Sparks, Maryland,USA
    I have a Lifan 140 that I bought about a year and a half ago new in a box unused. I was going to put it in a CT90 but then bought a NX250 instead. I would take $275 plus freight for it. anyone interested
    #46
  7. Sparke

    Sparke Been here awhile

    Joined:
    Jul 29, 2005
    Oddometer:
    469
    Location:
    Sparks, Maryland,USA
    [​IMG]

    This is the engine kit I have available. in the original box 54 lbs. 20x12x14 inches my zip code is 21152 you figure out the shipping to your address. $250 plus shipping
    #47
  8. Birdmove

    Birdmove Long timer

    Joined:
    Oct 30, 2004
    Oddometer:
    1,842
    Location:
    Keaau, Hawaii
    Just a few comments. There are 2 forums for the Chinese made motorcycles and scooters. Google "My China Moto", and "Chinariders", and I think you'll find them. Both have a lot of info. At both forums, an Idahoan that calls himself spudrider has a Zong Chen 200cc dual sport. He is past 60,000 miles on it. He takes it way off the beaton path all the time.

    I am interested in one of these:

    http://www.powersportsmax.com/product_info.php/cPath/482/products_id/15056

    4 speed manual with a clutch, 125cc engine. I think the engine could be used in a Trail 90, CL90, S90, etc,etc.

    Here is a guy riding one made by Pitster Pro. The seat is not stock. This one has the semi-auto trans. I would want a manual.

    http://www.youtube.com/watch?v=svm2y_gKf8w

    Who says you can't have fun on a small bike?? Freeways? Hell, no. We don't have them where I live.
    #48
  9. stefg

    stefg Adventurer

    Joined:
    Nov 15, 2009
    Oddometer:
    20
    Location:
    Drummondville Quebec Canada
    Does anyone know where I could fine break down for a 250 cc dirt bike engine?
    My daugther's bike just got a kick start issue and I think I will have to take the complete engine off the frame and tare it down.
    Before I do so i would like to see how its made.
    Thanks
    #49
  10. hugemoth

    hugemoth Long timer

    Joined:
    Sep 6, 2007
    Oddometer:
    3,081
    Location:
    In the TARDIS
    Is it the push rod engine or the OHC engine? On the push rod engine the crankcase has to be split to get to the starter ratchet and you can do a search for images of the Honda CG125 engine which is the same design. Not sure about the OHC.


    #50
  11. stefg

    stefg Adventurer

    Joined:
    Nov 15, 2009
    Oddometer:
    20
    Location:
    Drummondville Quebec Canada
    It's the OHC model and yes I had to split the engine to get to the transmision and I have discover a broken gear:(

    The motor is a lifan 125cc OHC with clutch. I wonder if I could find replacement parts and this is why I am looking for the break down parts of the engine so I can have a part number.

    Anyone have it?

    Thanks
    #51
  12. stefg

    stefg Adventurer

    Joined:
    Nov 15, 2009
    Oddometer:
    20
    Location:
    Drummondville Quebec Canada
  13. hugemoth

    hugemoth Long timer

    Joined:
    Sep 6, 2007
    Oddometer:
    3,081
    Location:
    In the TARDIS
    Your original post said it was a 250cc which could only be a vertical engine. If it is a horizontal 125 it'll be much easier to get parts for. Tons of parts on eBay and lots of pit bike specialty shops on line.


    #53
  14. JerryH

    JerryH Banned

    Joined:
    Jul 4, 2009
    Oddometer:
    5,069
    Location:
    Chandler, AZ
    I know this thread is about engines, but are Lifan bikes available anymore? Like the LF200GY-5? They used to be all over the internet. I bought one from an American Lifan dealer back in '07, and had it drop shipped to my house.
    #54
  15. TrashCan

    TrashCan Scary Jerry

    Joined:
    Oct 5, 2005
    Oddometer:
    4,978
    Location:
    Louisville, Tn





    Does that model have tube tires???
    #55
  16. hugemoth

    hugemoth Long timer

    Joined:
    Sep 6, 2007
    Oddometer:
    3,081
    Location:
    In the TARDIS
    As far as I can tell Lifan motorcycles are no longer sold in the US. Pretty sure that's because they had a problem with the EPA. It's a shame we don't have that low cost option available any longer.

    #56
  17. Gvidon

    Gvidon Adventurer

    Joined:
    Jul 16, 2013
    Oddometer:
    17
    Location:
    Los Angeles, CA
    #57
  18. JerryH

    JerryH Banned

    Joined:
    Jul 4, 2009
    Oddometer:
    5,069
    Location:
    Chandler, AZ
    EPA. That figures. They ruin everything they touch. I think I hate the EPA worse than the IRS. No wait, I know I do.

    Yes it has tube tires, but there is a simple solution to that problem on that particular bike, the same one I used on my 250 Rebel. You can bolt a second stand to the right side footpeg mount to get the wheels off the ground. It takes a little effort, but gives you a way to fix flats. My XT225 also has tube type tires, but it has an actual permanently attached centerstand.
    #58
  19. hugemoth

    hugemoth Long timer

    Joined:
    Sep 6, 2007
    Oddometer:
    3,081
    Location:
    In the TARDIS
    Lifan is a big company that sells a huge number of bikes, cars, trucks, generators, etc., all over the world. The US is a relatively small market for them so I figure they ran the numbers and decided jumping through all the EPA hoops is not worth the hassle. I'm glad we can still get the small motorcycle engines to keep some of the old Honda cub type bikes on the road.

    #59
  20. Dirt Road Cowboy

    Dirt Road Cowboy Sometimes I'm A Jerk

    Joined:
    Feb 19, 2011
    Oddometer:
    505
    Location:
    Tyler, Texas
    Wow! Prices sure have gone up on those! :eek1
    They were about $125 less last year.

    To answer your question, yes they will work in a CT90 with some slight modifications. They will drop right in a CT200 (the older Trail 90).

    Hugemoth would be someone to ask, since he has experience with a few of the Lifans.

    The Yahoo group is a good source of info too, as well as Dr. ATV.

    I'm building a CT200 with a Lifan 140 right now, completely from a big pile of spare parts from different bikes. I'll post a build report soon. :1drink

    #60