Review of Yong Xing machine zone 60cc

Discussion in 'Dealer Reviews' started by BSA, Feb 5, 2008.

  1. BSA

    BSA Guest

    My friend (raph92 on this forum) and me have thrown together this bike.

    This engine can be purchased at http://stores.ebay.co.uk/YXM-Zone
    Bought for £50, (about 100$)

    First impressions:
    Box had holes in it,
    Motor was intact and all parts were present.
    The clutch lever was just a converted bike gear shifter with a brake handle built in, which is completely inappropriate. I replaced with a locking clutch lever from transformer cycles.
    The fuel tank clamps were far to small for our top bar. A number of bolts were complete junk.

    Other than that the parts were perfect.

    The engine runs, and has not had any major problems. I'm running on 16-1 synthetic mix. Maximum speed for the first 50 miles is 15, and I will speed up after that. A bit of oil seeps out of the exhaust gasket.

    We ditched the chain tensioner, more trouble than it was worth. Used the rear dropout to tension the chain, bought a sprung loaded tensioner for the pedal side.



    Conclusion: excellent value for money, decent performance for bargain bucket prices.
     

    Attached Files:


  2. mickey

    mickey Guest

    Can you elaborate on what you mean by inappropriate? Was it well built but just not right for your rig? I'm thinking it would be good for my skyliner.

    Thanks
    Mickey
     
  3. BSA

    BSA Guest

    The gear shifter clutch lever is good idea in theory but I didn't think that it was any good at all compared to the locking clutch lever. The lever is way to stiff, just not enough leverage, I had to hold the unit in place while pushing the lever or the whole unit would just slide around the handlebar, if you know what I mean. I also prefer the control that the locking clutch lever provides.

    BSA
     
  4. mickey

    mickey Guest

    Thanks. I guess that I'm just going to have to break down and buy new, wider bars. The stock bars just don't have enough room for all the controls but they go with the bike, so I keep trying to find a way to squeeze the controls on.
     
  5. thatsdax

    thatsdax Guest

    I can also see that Postage is...

    Postage is also around 100usd.. or? You mentioned the motor can be had for around 100usd. Were you able to do a local pickup and save shipping costs? When I do the math, Engine is around 100, shipping around 100, total around 200usd. or? Let me know... Thanks.. Enjoy the ride....
     
  6. BSA

    BSA Guest

    Sorry; I meant that the price of the unit was around 100$, the shipping was 100$ as well. But I ended up spending a little bit more than that on replacing some parts, I.E clutch lever.

    BSA
     
  7. thatsdax

    thatsdax Guest

    that is still a ...

    Even at 200usd. That is still a pretty good deal.. What about Duty? What was the total cost for everything ? Let me know. Thanks..
     
  8. BSA

    BSA Guest

    I didn't pay any duty on this unit, I don't know why. I've beat the taxman on this one;) The locking clutch lever was approximately 30$ including postage (quite a bit overpriced considering the postage was from within the same country!)

    This is a really fun engine, particularly for a first build, for my next project I might get a higher quality 70cc or a four stroke. By the way thatsdax, are the frame mount titan xc50 available yet and at what price? I'm seriosly considering it for my next project.

    BSA
     
  9. thatsdax

    thatsdax Guest

    The Titan is..

    We have no plans for an in frame version. The Carrier version is so good that the company has lost interest in an in frame version. Not to pour water on that fire. But do not hold your breath. The Titan engines and PTO's arrived Yesterday. I still need a few production parts made Locally here in USA and the Titan will go up for sale.

    Also.. I too have noticed that using Postal Service the Duty is very low to other countries. When using FEDEX or UPS, Duty is higher. Thanks.. Enjoy the ride...
     
  10. BSA

    BSA Guest

    Done 50 miles now, and she's getting stronger and stronger. I will change the fuel to standard two stroke oil at 25-1 mixed with synthetic oil to bump the mixture up to 16-1. No real problems apart from the fact that it floods often when starting.

    BSA
     
  11. fastboy9

    fastboy9 Member

    Got the exact same engine on my bike, no problems yet apart from exhaust pipe exploded, that was partly my fault though after removing the baffle. I would recommend this engine because of how cheap it is, but unless you treat it nicely for first 10 miles then you are likely to get some problems.
     
  12. BSA

    BSA Guest

    I best not remove the baffle then. What petrol mixture are you running it on? It is a great engine. Did you keep the stock clutch handle, I replaced mine with a locking type, much better.

    BSA
     
  13. fastboy9

    fastboy9 Member

    Well I removed the whole baffle, not leaving any thing inside, I was going at about 30mph and i think the silencer acted as a crude expansion chamber, gasses were building up quicker than could escape + carp chinese welding = BOOO0M! ye Ive got the same clutch handle but i have built a roller thingy for it, (check out large fillipino's clutch cable mounting, well worth it!) much smoother and less tension put on the cable. Got a new tuned chrome racing mini moto pipe, with expansion chamber on its way (got it 99p on eBay). i'll pm you with the thread, if you want to give it go. I'm 16 from england, your pretty young too aren't you?
     
  14. BSA

    BSA Guest

    O.K Shes now done 100 miles at 16-1 standard oil. I will change to synthetic soon. Mechanically the engine remains sound, while it does seem to flood a lot. I'm going to take the carb apart and clean it and see if that sorts it out. It maxes out about 20-30MPH. I don't have a speedo so thats my best guess.

    BSA
     
  15. BSA

    BSA Guest

    Now done at least 200 miles. Engine does not seem to be pulling as well as expected now.

    BSA
     
  16. iron_monkey

    iron_monkey Guest

    Have you opened up the engine? When asked Yong Xing claims to use roller bearings on connecting rods.
     
  17. BSA

    BSA Guest

    No I haven't opened u the engine as yet, and I'm not likely to as I'm moving onto a new project. I suggest cutting of the mesh filter in the fuel petlock as it gets clogged up real quick and I think has been reducing the performance of my engine.

    Use an inline fuel filter, they are availible at most motorist discount centres and are only 50p.

    I do intend to open up my next build which is an 80cc. I'll be starting a new reveiw thread for that.

    BSA
     
  18. iron_monkey

    iron_monkey Guest

    I asked if they can include an assortment of parts for a top end rebuild (I specified exactly which parts since the seller may misunderstand) along with the kit for an extra charge; and they agreed.

    So its confirmed they use roller bearings. Unless they give me a bushing engine to clear out very old stock. But I' m prob being abit overly paranoid here.
     
    Last edited by a moderator: Jun 21, 2008
  19. fastboy9

    fastboy9 Member

    I also ordered a pull start unit for it, only cost me £10. It broke after about a week though. The rope snapped.

    The guy sent me a happy chinese new year postcard with the parts that I ordered. It is one of the cheapest kits available, and you get free parts replacement for a year (you just pay the postage). I will be using these people again because of how cheap they are.

    The guy seems nice enough and tries to help as much as he can, although his english isnt perfect you can still understand what he is saying.

    I did send him an email asking what the exact displacement is for the engine, and he just told me to look on page two of the manual. So this suggests that either he doesnt know that much about the engines, or much more likely he is being dishonest about the advertised size.

    Fastboy
     
    Last edited: Jun 21, 2008
  20. JemmaUK

    JemmaUK Guest

    Sounds like a good engine for its price - I am sorta tempted to look into a frame mount engine but I have all in all put in almost £1000 on the bike I have now and its reliability is important to me.

    We just need a few more people and we could have a UK chapter lol.

    I would LOVE to see the looks on peoples faces if we all were to do the Mersea Island motorbike meet one year :)

    Incidentally - I have heard tell that engines can be run on less than the manufacturers petroil mixes. I am looking at replacing the Tanaka with a more powerful engine - but it runs 25:1 and I am worried about smoke from exhaust... any suggestions or opinions?


    Jemma xx
     
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