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Post by WarrenS on Dec 29, 2007 20:03:21 GMT -5
It is basically the same engine. The drive train is different because of the bigger wheels.
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Post by scootncruzer on Jan 5, 2008 15:48:41 GMT -5
This is all great info, but i have been seaching high and low for this information on what is the right setting for the valve clearance for the 250cc linhai motor, and i have had no luck so far. So if there is anyone out there please share this info with me.
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Post by earlwb on Jan 20, 2008 21:37:42 GMT -5
If it helps any, the Roketa MC54-250B that I have, uses the 130/60 tires on 13 inch wheels both on the front and the rear. It has the Linhai design 250cc engine. I'll try and see if I can see if it is really a 247 or 249cc engine when I can figure out where they put the info and if I can see it or not.  |
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Post by daveb on Feb 1, 2008 20:36:55 GMT -5
Bandit or whoever might know,
This week I received some 250cc scooters in from a pretty big importer. The scooters are manufactured by ZNEN (verified by WMI #).
When I commented to the importer's sales rep that the 244cc engines on those scooters were CFMoto liquid cooled engines, they told the owner what I said and he strongly disagreed saying that the engines had absolutely nothing to do with CF Moto.
I was pretty much put down as knowing nothing and that the engines were actually much better, improved 244cc water cooled engines that had nothing whatsoever to do with CF Moto.
We have seen, prepped, repaired and replaced our share of CFMoto engines so they were definitely the same design as we are used to.
Question? Are there other factories in China making a better quality CF Moto clone liquid cooled engine? ZNEN or one of their associated factories specifically.
I need to represent these engines correctly to the consumer and want to know what I'm talking about.
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Post by scootermike on Feb 10, 2008 21:11:08 GMT -5
The exhaust should not be a problem,we make custom headers in our shop and offer two different cans. The engine is the same. Clutch will work also plus weights and variator.
scootermike
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Post by Dennis D on Feb 10, 2008 23:37:07 GMT -5
daveb... you can often identify the maker of the engines by the engine serial numbers, sometimes even by the epa/carb tag on the bike.
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Post by earlwb on Feb 13, 2008 12:26:04 GMT -5
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Post by motomech on Mar 1, 2008 9:57:49 GMT -5
Having read on several occasions here, that the Linhai 257 engine sported a 4-valve head, I was having a hard time reconciling that statement with the engine photos I have seen. This engine uses two round valve covers, where a 4-valve head would use either 4 round valve covers, or more likely, two oblong covers.
Doing a bit of research, it would seem the the original majesty engine utilized a two-valve head which Yamaha updated to a 4-valve head during the redesign
The Linhai, being based on the original design, is a two-valve unit.
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Post by scooterollie on Mar 1, 2008 13:12:34 GMT -5
Motomech,
Yes, the 257 Linhai is 2-valve. The 300 (275) is often listed as 4-valve but I don't think that is accurate, either. Haven't yet pulled the covers off mine. The included parts manual only shows 2 valves. The difference in performance of the 275 over the 257 is in the few extra CCs as well as in variator and clutch tuning.
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Post by banditms on Mar 5, 2008 17:10:59 GMT -5
I haven't been in this thread in several months... there's been a lot added posts since then. Didn't think it would go this far out... ( - ; Bandit or whoever might know, This week I received some 250cc scooters in from a pretty big importer. The scooters are manufactured by ZNEN (verified by WMI #). When I commented to the importer's sales rep that the 244cc engines on those scooters were CFMoto liquid cooled engines, they told the owner what I said and he strongly disagreed saying that the engines had absolutely nothing to do with CF Moto. I was pretty much put down as knowing nothing and that the engines were actually much better, improved 244cc water cooled engines that had nothing whatsoever to do with CF Moto. We have seen, prepped, repaired and replaced our share of CFMoto engines so they were definitely the same design as we are used to. Question? Are there other factories in China making a better quality CF Moto clone liquid cooled engine? ZNEN or one of their associated factories specifically. I need to represent these engines correctly to the consumer and want to know what I'm talking about. DaveB, Yup, that's all true. It's hard to tell which factory is using which engine... and the only real way to get an idea is to check the engine serial number stamped on the rear left of the tranny case. If your engines are 'genuine' CF Moto, the serial number will start with 'CF' and be something like 'CF172MM BDA37549'. In all likelihood it is not. The same goes for the Linhai 257cc engines. Those would be marked soemthing like 'LH170MM T2RBR549'. The 244cc and 257cc engines in my Bandit bikes as made by Znen were not marked as either CF Moto or Linhai engines. The first batch of UC-250's with 257cc engines were marked as Linhai's... but all subsequent orders were not. Here's the deal. CF Moto and Linhai are probably the two best powersports manufacturers in China at this time. They've developed some pretty decent products of their own, and one even has the baking of Yamaha's design and QC teams. And have you noticed that CF Moto and Linhai products in the US cost more than any other Chinese brand? Well, that's becaue they cost more in China as well... and the reason why they cost more is because they're built better than 'run of the mill' engines. OK, so now what happens is that Roketa calls and tells their factory that they want a 250cc scooter that costs them $800 from the supplier. But the supplier can only get a 250cc engine from either Linhai or CF Moto... and both of those engines cost $1000 - at least! So, the Chinese set about doing what they always do... cloning a design to make it cheaper. What you have in your Znen bikes (and my Bandits for a time) is a clone... of a clone. LOL. Its not an engine built by CF Moto, but rather a 'CF Moto type' engine - as Znen likes to call them. Yes, there were companies over there that needed to make the CF Moto 244cc and Linhai 257cc engines much cheaper than what either of those two companies wanted for their versions. So we got clones of clones... ( - ; Oh, and as to that bullsh!t about Znen having a 'much better, improved 244cc engine' than CF Moto... I wouldn't buy that if they gave it to me. I say this for the simple fact that I can call Znen and buy a 244cc engine for $650... and then call CF Moto and buy a 244cc engine for $950. There is a better one... and it ain't the cheaper of the two. I'll readily admit that the reliability differences between the two are probably neglible... but I'd still opt for the CF version. Less hassles down the road for a seller that actually makes a point of supporting their bikes... ( - ; We've had them side-by-side as well due to importing the Bandit LX-250... and selling the QLink Commuter. Externally, there doesn't appear to be any differences when just glancing at them. But if you're an engineer like me... and you start combing over each detail of the construction and assembly of each component... you start to see 'differences'. Just my nickel on the deal... Lance will probably say I'm lying or that I hate Znen - or something else ludicrous. I get that when I spell things out carefully and put reasonable rationale behind it... Later, Jim J... Bandito MotorSports |
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Post by scooterollie on Mar 5, 2008 17:57:03 GMT -5
Jim,
Thanks for the excellent discussion on the source of these engines. I wasn't aware that even the Chinese CFMoto and Linhai engines are cloned! Being the current owner of a Linhai 300 and former owner of Chinese scoots from a couple of other assemblers, you have backed up my assertion about the high quality of the Linhai products, as compared with cheaper products from other assemblers.
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Post by earlwb on Mar 5, 2008 18:10:14 GMT -5
Well it gets better than that. On my Linhai style engine, there are no identifying markings anywhere and no serial number either, plus no CC displacement markings either. The serial number pad is really blank. Cute stuff huh? But then in thinking about it some. it may really be a engine made for Japanese consumption with higher quality applied to it. They were just covering their tracks. One of those back door specials.  |
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Post by scooterollie on Mar 5, 2008 20:49:26 GMT -5
Earl,
On my Linhai, in the area you have circled, mine has this: "LINHAI".
Look on the cast area just in front of the left rear shock where it attaches to the drive. On mine, there is "LHXXXXXXXXXX".
Can't get to my CFMoto Bali right now to check it. I am curious about what is on it's engine!
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Post by earlwb on Mar 6, 2008 10:58:49 GMT -5
You are correct, I stand corrected.
That is where they put the numbers at on my engine as well.
I didn't see if for the crud that had accumulated on top of it there.
I got a 170MM on the first line and a 070xxxxxx on the second line.
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Post by banditms on Mar 6, 2008 14:56:05 GMT -5
Yup, that means ScooterOllie's is a true Linhai powerplant... and Earlwb's is a true Roketa - no offense. ( - ; I have these debates with people constantly... there ARE differences in the quality and reliability levels even for brands coming out of China alone. We've been in and out of enough brands to see which factory is doing what... and can reason why they do what they do pretty easily. It's all in good fun... ( - ;
Later, Jim J...
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Post by earlwb on Mar 7, 2008 6:50:06 GMT -5
So that helps explain the "at night, back door system" of motor distribution. Thanks  |
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Post by accord911 on Mar 14, 2008 0:34:41 GMT -5
my nst yy250-t scooter is running hot someone told me to remove the thermostat and i did, but it still is running hot. i checked the water pump its pumping the coolant. do any one have another suggestion, and the fan is working. please help
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Post by cat0020 on Mar 14, 2008 8:40:37 GMT -5
Is it burning any coolant? if it is, head gasket might be shot.
Is it burning any oil? if it is, valves, rings, may be shot.
It the jetting set properly? running lean may cause overheating.
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jurgen68
Big Dawg
My Gator 250
Posts: 17
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Post by jurgen68 on Mar 22, 2008 11:31:10 GMT -5
Hi,
I have a YY250 (same as MC54).
I do have a problem with my light for a cell phone.
If I pick up a signal this light will start flashing but the rest of the dash-board is not working anymore. I meen everything. My clock-light, my RPM gauge, blinker-lights, ect.
Is there anyone who knows how to fix this or how to disable the "phone light"?
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Post by "Big Guy" on Mar 22, 2008 13:18:58 GMT -5
Sounds like a short in the socket to me. I would start by cutting the green wire to the lamp. If that works, PM me and I will send you another socket and lamp for it.
-Rich
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jurgen68
Big Dawg
My Gator 250
Posts: 17
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Post by jurgen68 on Mar 27, 2008 18:29:59 GMT -5
Ok I have found the problem with my phone light. There was a wire allmost lose from the fuse-box
Jurgen
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Post by capacitorhead on Apr 15, 2008 22:26:49 GMT -5
Any info on a Lance Duke 250 touring . These appear to be a rebadge of a Tank 250 but is anything new or improved on the newest model?
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sieg
New Puppy Dawg
Posts: 2
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Post by sieg on Apr 16, 2008 20:37:51 GMT -5
I don't believe that there is anything "new and improved" on the Lance 250 over the Tank, but parts availability and customer support for the Lance is much better. Plus the Lance would arrive to you pre-prepped so there is little that you need to do to get on the road. I believe that the pricing is lower on the Lance or at least similar. I sell many different models and no other brand I carry gets as much support and care as Lance gives. When my customers are on the fence between a Lance and any other bike I carry, I do try to steer them to the Lance. From a dealers point of view, the better they are built and the better the support, the less chance of future problems developing. Sieg National Online Scooters www.nationalonlinescooters.com |
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Post by Gary on Apr 16, 2008 22:59:22 GMT -5
Sieg,
How do you get parts for a lance 250? I loooked at you website and didn't find the 250 listed in the parts section. On the other hand, I can find Tank 250 parts at Scootersgeorgia.com, or partsfor scooters.com, and several other places.
Just curious, Gary
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Post by kingoftheroad on Apr 24, 2008 16:54:04 GMT -5
HI I have a 250cc roketa made from Bali this is a 2007 year model. Ihave had my share of problems. Have been fixing the problems. There is one im having now I cant yet fix. With the key in the off postion. The brake light and headlights are on. I can turn the key on and start the scooter and drive it the turn signal high beams all work. I usually disconnect the battery when i stop. This have been happening for about a month. Then one ride I smell plastic melting. The was the plastic connector the the manastat. It melted. I respliced the connector ends bought a new manastat and still the light stay on . so I decided to put a toggle switch on the ground side of thebattery to cut the power. Now My battery for some reason isnt charging while I ride. Got to for now be back later
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Post by gy6rocket on May 4, 2008 20:47:53 GMT -5
Where can I buy this:  Looking for a 250 crate engine just like this. |
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Post by snortyboy on May 16, 2008 20:47:06 GMT -5
New to this whole scooter thing too! I'm sure many of you have heard this several times...anyway from what I am reading I have bought a Viva 250 with the CFMoto engine, not really had any problems, but this one, again probably answered already. It starts fine, but after about 2-3 miles the temp gauge goes skyrocketing to the full hot. The brainiack at the dealer I bought it from seems to think that it is the thermostat...which sound logical. Where the heck is this thing located. The are suppose to be sending me a new thermostat, but I have read of several people running without one with no problems. Please help...
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Post by "Big Guy" on May 16, 2008 21:10:45 GMT -5
No, you don't run without one. Just follow your hose! At the end of the water hose, you'll see the cover with the 2 bolts that house the thermostat, just like a car.
-Rich
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Post by lcarfizz on May 21, 2008 22:41:52 GMT -5
I have a 2008 MC-54-250B or "Ronoco" and I can't seem to find the gear oil hole and drain. It seems that the gear box looks different from the manuals and some of the pics I have seen. There are no drain plugs on the gear side as there are on the oil side. Anyone shed some light ?
Lou
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Post by "Big Guy" on May 21, 2008 23:02:02 GMT -5
You have to remove the CVT cover and the bolts are under there:  -Rich |
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Looking for a 250 crate engine just like this.