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mainepeace
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 Peace Sports 50 going 45+ (GPS & Video)
« Thread Started on Aug 18, 2010, 3:38pm »

http://www.facebook.com/v/417159196497


Crappy quality cell phone video of my scooter (and me) going over 45mph just a few minutes ago. Notice it wasn't totally flat, slight downhill. I actually hit over 50 a few seconds later but my camera only shoots 20 second clips. If you match the speedometer with this image you can see what the needle reads. There is also a glimpse of the cyclocomputer I have jerry-rigged for now which matches the speed reading.

[image]
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Only mods are NGK spark plug and only the smaller intake tube restrictor removed and #82 jet installed.

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 Re: Video of stock Peace Sports 50 going 45+
« Reply #1 on Aug 18, 2010, 3:44pm »

I tried it and it didn't work. Said the video was either removed or privacy settings would not allow it to be viewed.
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 Re: Video of stock Peace Sports 50 going 45+
« Reply #2 on Aug 18, 2010, 3:47pm »

Sorry, try it now.
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 Re: Video of stock Peace Sports 50 going 45+
« Reply #3 on Aug 18, 2010, 4:14pm »

Wow you must have one of those 60cc ones. My guess anyway.
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 Re: Video of stock Peace Sports 50 going 45+
« Reply #4 on Aug 18, 2010, 4:21pm »

It funny I can go 45mph on my Linhai Aeolus 49.5cc. I weigh 150 pounds. Though I'm about to put a 80cc/72cc BBK on it, so will see what happens when I install it.
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 Re: Video of stock Peace Sports 50 going 45+
« Reply #5 on Aug 18, 2010, 4:36pm »

Yeah, I'm pretty sure it's a 60cc. Right year (late 2008 thru 2009) and right manufacturing location. It's also not regulated in any way. About the only thing I've noticed is that the belt doesn't go to the very top of the variator, stops about 3/8" from the top so I'll try a slightly longer belt to see if I get a higher top speed.

Maybe later I can get better video of the speedo with my movie camera. It's really scary riding these hills with one hand, the other hand trying to frame the camera and hold it steady while dodging potholes and such.

I weigh 140#.
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 Re: Video of stock Peace Sports 50 going 45+
« Reply #6 on Aug 18, 2010, 4:46pm »

I know what you mean. Though I've gotten better at counter steering.
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 Re: Video of stock Peace Sports 50 going 45+
« Reply #7 on Aug 18, 2010, 6:42pm »

wow. I may have one of those. same manufacture dates. same instrument cluster, and i have to open the fuel mix way out to keep it from going lean. I can get to 45 on the chinameter but never held much stock in it. Does keep up with traffic well, and is faster than most cars want to come off the line at stop lights.

What size jet was in it stock? And where was it manufactured?
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 Re: Video of stock Peace Sports 50 going 45+
« Reply #8 on Aug 18, 2010, 7:21pm »

The stock jet wasn't labeled but I think I measured it to be around #79. It was very lean to begin with and as soon as I took of just the internal double tube (not even the outer "cap" with the 4 holes in it) it was so lean it would quit at part throttle. I think #82 is perfect for my setup. I have a set of Naruku jets so I'm ready for any future mods. I do want to put on a hi-po air filter and replace the airbox but I'll do that when I have more time.

I forget the exact location but I remember I matched up the VIN manufacturing numbers with a list I found online. I forget who it was but it was a dealer in California who made the verification when they opened up a 2009 engine from the same factory.

I think it's LHJT1B2J49BLxxxxx

One thing is I've found the speedometer to actually be accurate, to within 1/2 mph as compared to my cyclocomputer which is calibrated with the circumference of the tire with my weight on it. The speedo cable was a little loose on the back of the instrument cluster and I tightened it up finger tight. If anything it runs a little slow now.

For the most part I can keep up easily with traffic. Only one road nearby has a speed limit of 45, the rest are 20-35. I do have trouble going up some steep hills, but I can typically keep 30 going up a normal hill so I have no problems letting the traffic pile up behind me. Also, going down a very long 5% grade I can peg the speedo well past 55, close to 60, but it takes me about a minute to get going that fast.

Greg
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 Re: Video of stock Peace Sports 50 going 45+
« Reply #9 on Aug 19, 2010, 6:31pm »

I sell Peace TPGS-805's. They have the 1P39QMB and they roll out.
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 Re: Video of stock Peace Sports 50 going 45+
« Reply #10 on Aug 19, 2010, 9:01pm »

Here is a pic of the engine model next to the VIN as printed on my CVT cover. Definitely a 1P39QMB. I guess I never realized there was a difference between the 1P39QMB and the 139QMB.

Here are the specs as from Lifan: http://www.lifanth.com/en/products-a-ser....6-1p39qmb-.html


However here is a thread from someone I found that claims his piston is 44mm wide.

http://www.scooterforumonline.com/index.php?topic=1548.0

However according to this parts supplier it is showing the 1P39QMB is different than the 1P44QMC (63.1cc)

http://www.alibaba.com/product-free/1057....upgrade_to.html

According to my research that certain 1P39QMB's manufactured by Peace Sports from mid 2008 through 2009 are LABELED as 1P39QMB but are actually 1P44QMB speculated to be a manufacturing error but they didn't want to pay more taxes/relabel the paperwork so they let them ship.

I'll try to locate the thread where the dealer in CA broke open the engine and posted pics of the 44mm piston.

If anyone can give me a method for measuring the width of a piston without tearing off the head or even the valves I'll gladly do it.

Greg


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 Re: Video of stock Peace Sports 50 going 45+
« Reply #11 on Aug 19, 2010, 11:46pm »

I'm afraid there is no other way. At least to my knowledge anyway. I heard the same story you heard about some being labeled 49.5cc but were actually 63.1cc. Supposedly they had a boat load of them and didn't want to ship them back to China, so somehow they managed keep them here.
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 Re: Video of stock Peace Sports 50 going 45+
« Reply #12 on Aug 20, 2010, 7:48am »

Dag thats some good stuff to know. I put one of my 805's together yesterday and I took it for a test run and I was like DAMN this thing is moving. I checked the engine code, it had the P stamped on it.
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 Re: Video of stock Peace Sports 50 going 45+
« Reply #13 on Aug 20, 2010, 1:50pm »

Here are some photos of the engine identification plate and an etching from the case casting. Hopefully this gives more info for someone who knows.

[image]

[image]


According to lambda50 the 1P39QMB definitely are 60cc engines from the factory even though Lifan's website shows the 1P39QMB to be 50cc?

http://scootdawg.proboards.com/index.cgi....ay&thread=32592

So if that is true, its pretty simple to just look at a Peace Sports 50 (or any other 50) to see if it's actually a 60 from the factory!

Greg
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 Re: Video of stock Peace Sports 50 going 45+
« Reply #14 on Aug 20, 2010, 2:07pm »

Thats right. I found this out on my own when I noticed that my old MC-01 was faster that my MC-109's and Maui-50's. I couldnt figure it out so I compared the codes and they were different. I immediately knew that either my motor had more compression or had a bigger bored. After that I found somewhere that the P engines have a bigger bore and the person did a calculation and come up with a hair less than 60cc.


I also wonder if the heads between the 1p39's and 139's are the same. I am getting an MC-109 in on a trade and I am wondering if I could get a 60cc bore and not have to use the 60cc head.
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 Re: Video of stock Peace Sports 50 going 45+
« Reply #15 on Aug 20, 2010, 2:19pm »

I'm pretty sure the heads are the same. I don't believe they would make a separate head for this as it wouldn't be cost affective.
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 Re: Video of stock Peace Sports 50 going 45+
« Reply #16 on Aug 20, 2010, 4:01pm »

I have a PDF of the

1. QMB139 (GY6) Service and Maintenance Manual for the generic 139QMB engine
2. 50cc/150cc GY6 Shop Manual for the JL50QT-18/JL50QT-X1/8/JL-14 models, I assume are Jonway
3. Mortech 139 QMA/QMB engine manual

They are different as the Service and Maintenance Manual is for the GY6 engine and has ALL the technical info and the other has general scooter info. In the second manual the engine graphic has LJ139QMB printed on it. Is the official 139QMB designation the LJ139QMB or is that just the Jonway variant of the engine?

The more manuals for the GY6 engines I find the more confused I get as none of the specs seem to match. I also can't seem to find any definitive way to quantify the differences between the 139QMB and the 1P39QMB engines.

I also found this doc from the EPA which has some specs for what the EPA has passed for the different models imported.

http://www.epa.gov/otaq/cert/veh-cert/cert-tst/09mc-ctrr-02-01-10.csv

BTW, the 1P39QMB engine has the TWC and PAIR emissions control systems.

Greg
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 Re: Video of stock Peace Sports 50 going 45+
« Reply #17 on Aug 20, 2010, 4:38pm »

I think the "LJ" designation is just a manufacturers designation. For instance mine was manufactured by Shang Hai Hongling Motorcycle Company. My motor is stamped HL139QMB which simply means it was produced by Hongling. I believe yours is the same way. I believe you will NOT be able to find anything that states the 1P39QMB is any different than the 139QMB. Quite simply because these things are illegal, they were mis-labeled to get them in the country. If any state DMV found out these things had 60cc motors they would no longer qualify them as mopeds, and you would need a Motorcycle endorsement. The only way I have ever heard about these being found out is when the motor is tore down. Since customs doesn't tear engines apart at the port they would have no way of knowing without measuring the piston. The downside is if you ever do have to tear it down, it will be nearly (or completely) impossible to find the correct rings or piston for it. You would have to either put it back to 50cc or move up to 72CC's.
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 Re: Video of stock Peace Sports 50 going 45+
« Reply #18 on Aug 20, 2010, 4:40pm »

I also have an idea.

I have been doing alot of research lately on my engine. I have found lots of sites that sell the 1P39QMB and many new scooters use this engine instead of the standard 139QMB. Perhaps the 1P39QMB and 139QMB really are identical except for the emissions control systems, which has been suggested by others on other scooter boards. If true, then the reason that the Peace Sports 50 is so quick is that it already has the "upgrades" that people would consider getting, and that would be properly matched rollers and clutch spring, proper end gear ratios, performance cam, etc. Everything is setup properly on my scooter. I have found no definitive proof that these Peace Sports 50's come with a larger piston or higher CR other than hearsay, "it feels faster", and that one thread from the dealer in CA that I can't seem to find anymore, which itself was just hearsay as there is no real way to verify the piston IS 44mm.

Just a thought.

There are so many variations of scooters out there and no real way to match them up without disassembling ALL of them to find the specific differences.

I normally wouldn't care anymore about it except that I'm considering more upgrades and there would seem to be no reason for me to buy them, even just lighter rollers, if they are already installed. If my scooter already came pretty well matched in parts then I'm only going to concern myself with airflow (intake, p&p, honing, port matching, exhaust) and not mess with the rest of the drivetrain at all.

"Why not just tear it apart to find out for sure?" - Well I don't want to tear apart a perfectly good engine for nothing more than curiousity, especially if there is a chance that being an "illegal" engine that the parts I would need to rebuild it are impossible to find. And I'm lazy.

Greg
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 Re: Video of stock Peace Sports 50 going 45+
« Reply #19 on Aug 20, 2010, 4:45pm »

Yeah I have heard that the 1P39QMB was with an EGR set-up, and 139QMB was not. But still like I said you probably will never find anything in print that will indicate if it has the bigger piston. You will never know for sure until the day you finally tear it down.

*** Hey don't feel bad I'm lazy too! There's no way I would pull the motor out and tear it down just to measure the piston. That is just too much work!! ;) I would rather ride mine and enjoy it than tear it apart.
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 Re: Video of stock Peace Sports 50 going 45+
« Reply #20 on Aug 20, 2010, 5:02pm »

I believe you will NOT be able to find anything that states the 1P39QMB is any different than the 139QMB. Quite simply because these things are illegal, they were mis-labeled to get them in the country.


I don't think that's the case as the engine itself wouldn't be illegal. The only thing illegal would be to misrepresent the size engine actually installed in the scooter. Therefore finding specs for the specific engine alone from a different source should give accurate information.

It wouldn't make sense that if Peace Sports (and any associated no-name scooters in that shipment) altered the paperwork and engine ID tags that ALL resellers selling ALL parts and complete 1P39QMB engines would have the same basic info unless they ALL came from that one shipment. Doesn't really make sense. What makes more sense is that if that rumour of the shipment is true, then the affected scooters would actually have 1P44QMC engines labeled as 1P39QMB engines.

Here is what is known:
1P44QMC engines are known to be 63.1cc and sold as such.
1P39QMB engines are sold as 49.5(49)cc engines and assumed to be as such.
1P39QMB engines have extra emissions equipment that 139QMB don't have.
Some of the affected scooters are noticeably faster than "normal" scooters
A couple people have claimed online to have 44mm pistons in the 1P39QMB labeled engines.

You would think that with as many 1P39QMB engines that are now circulating that *someone* would have a definitive answer about its displacement.

Also, as in my last post, even if the displacement is still 49cc then it possibly creates more than the normal 2.4hp with the EGR setup and tweaking in the cam.

Greg
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 Re: Video of stock Peace Sports 50 going 45+
« Reply #21 on Aug 20, 2010, 7:20pm »

They do have bigger pistons. I can verify this because when I did a warranty for Roketa, they sent me a 39mm gasket and a 44mm gasket. The piston is in fact bigger on a 1P39QMB than a regular 139. I will bust apart the head on one of my brand new scooters to verify. This is why they are faster than the regular 50's. For some reason, all "50cc" scooters are sold as 49.5cc to be legal. So I will tell you now, these claims are TRUE.

So to answer your question, the P engines are more than 50cc. I cant get exact measurements on stroke, but I promise those P engines have a bigger bore than the regular scooters. EGR is just an emissions device and has no real control over power. In other words, you can eliminate it and you will neither gain nor lose power. The cams should all be the same.
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 Re: Video of stock Peace Sports 50 going 45+
« Reply #22 on Aug 21, 2010, 7:19am »

Cool.

Think possibly that the pistons are bigger but the stroke is shorter?

Greg
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 Re: Video of stock Peace Sports 50 going 45+
« Reply #23 on Aug 21, 2010, 9:42am »

The stroke is the same. I believe they were beefed up for the heavier scooters that were designed to carry 2 people. Carrying 2 people on a stock 139QMB isnt fun. It just so happens that Peace got ahold of some hot 50's on their base scooters.

Im going to call Peace right now and buy the P bore kit to put on my new Roketa Mc-109 haha. $47
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 Re: Video of stock Peace Sports 50 going 45+
« Reply #24 on Aug 21, 2010, 1:56pm »

Heh, that would be the easiest and cheapest BBK upgrade.

Then I guess I won't be doing a BBK on my scooter. Maybe this winter I'll do some head/port work.

Greg
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 Re: Video of stock Peace Sports 50 going 45+
« Reply #25 on Aug 21, 2010, 10:45pm »

Is there any type of externally visible casting boss or other identification mark to differentiate between the 49.5cc and 63cc cylinder? Or between any of the cylinders?

I found a 44mm wide cylinder (60cc) bbk. Is it the same as the generic 72 or 80, where those kits only have a longer stroke but are still 44mm?

Claims the "70cc" bbk is actually 60cc
http://www.mbe-motorsports.com/catalog/p....i9oobua5j7rd891

Greg
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 Re: Video of stock Peace Sports 50 going 45+
« Reply #26 on Aug 21, 2010, 11:02pm »

Also, FYI, I have ANOTHER service manual for an American Motorworks scooter that looks almost identical to the Peace Sports 50.

http://www.amsportworks.com/ipls.php?cat=scooters&model=matrex#matrex

Greg
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 Re: Video of stock Peace Sports 50 going 45+
« Reply #27 on Aug 22, 2010, 7:30am »

As far as those bbks go, I couldnt tell you.


Anyways, I delivered a Peace scoot (just like yours) to a customer at USC and damn that thing will roll out. The transmission was in perfect tune and climbed hills pretty good. I couldnt believe it. So if anybody wants a fast and cheap scooter out the box, get one of these.
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 Re: Video of stock Peace Sports 50 going 45+
« Reply #28 on Aug 22, 2010, 10:14am »

Have been reading this on and off for the last few days and that's my bike, even down to the color. Plates stickers numbers everything. So it's a probably a 60cc, that would explain a lot. Mine now has over 1000 miles on it and apart from oil changes and adjustments it has run like this from day one. Secrete sixty, who'd a thunk it?
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 Re: Video of stock Peace Sports 50 going 45+
« Reply #29 on Aug 22, 2010, 11:36am »

I think they have lighter rollers in them too. After I get on one of these and then my Roketa, I can tell a big difference in the way the variator acts.
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