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Post by S.B.H. on Sept 23, 2008 16:30:52 GMT -5
I`ve been asked to see if I can bring this thing back from the dead.The side panels are marked QM50QT-3 and the # is LAEACZ1022B900415.I was told it had carb problems,maybe so.I`ve taken off the body panels and fuel tank,so far I can tell not one hose or line is good.The battery has been flushed and refilled,is being charged now.It looks like I got 2 lines off the petcock to carb and oil bag line is going to primary/cvt???.I will have new hose tomorrow,when batt is charged I will check for spark and compression.My question for now is the fuel and vac line from tank go to carb and oil bag line goes into cvt cover,guess oil pump and stuff is down inside cover?
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Post by Karl on Sept 23, 2008 23:26:53 GMT -5
SBH, Any idea of the engine number? If it's the 1PE40QMB then, yes, the oil line will run to the pump driven off the flywheel. If it's the 1PE41QMB then it's the vertical engine, not the Minarelli and the oil pump will be driven off the rear wheel. I loved my old QingQi and although it was a rattletrap, the engine was very reliable. The chain drive had horrible acceleration but it still was a fun first scoot. Here's a good parts source for the 41QMB. www.scootusa.com/2_stroke_engine_parts.htm |
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Post by S.B.H. on Sept 25, 2008 7:04:39 GMT -5
Any idea of the engine number? no
If it's the 1PE40QMB then, yes, the oil line will run to the pump driven off the flywheel. If it's the 1PE41QMB then it's the vertical engine, not the Minarelli and the oil pump will be driven off the rear wheel.
It is a 1PE41QMB,carb up front,pipe in back and plug on top of motor.I was told it had carb problems,bike has sat for a long time under a side shelter of barn for about a year after they tried to" fix it".The hoses and vac lines crumbled,bike has 7 hundred some thing on it.My first thought is cheap hoses leaking,dirty carb-no filter on it and operator malfunction .oh yeah and batt has went bad,am hoping that I can replace hoses and clean carb and fire it up.
So to replace oil line I need to take off cvt cover and trace it back?I am hoping to have time tonight to fool around with it.
I loved my old QingQi and although it was a rattletrap, the engine was very reliable. The chain drive had horrible acceleration but it still was a fun first scoot.
I know nothing about these scoots,it looks really cheap to me,but you say they have a very good motor eh? So basically it is what it is but has a good motor.I told them that I would ride to death{they can`t work on it=shop time} and look at upgrading to a nicer bike something with disc brakes and bigger tires and what not[something that only needs standard service work not repair bills ].
Oh yeah that chain drive makes the cvt unit a" wet one" right? just run reg oil in it? thanks in advance
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Post by Karl on Sept 25, 2008 8:26:14 GMT -5
If it has the spark plug on the top then it's the 41QMB for sure. Not really upgradable but mine was reliable.
It's been years so I don't remember where the oil line ran but I do know that the oil pump was run off the rear wheel.
Definitely clean out the carb and replace the battery. I wouldn't run it without a battery in there.
The scoot is a chain drive, not a CVT and takes regular old motor oil (10w-40) in it. Doesn't need to be synthetic either, since it's just lubing the chain and clutch. I don't remember the volume of oil but it's somewhere between 300mL-350mL.
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Post by S.B.H. on Sept 25, 2008 18:00:06 GMT -5
"It's been years so I don't remember where the oil line ran but I do know that the oil pump was run off the rear wheel." the hose goes into primary housing,taking cover off should show me. "Definitely clean out the carb and replace the battery. I wouldn't run it without a battery in there. What I did was flush the batt real good and filled with fresh acid all cells bubble on charge 2 amp,should work for now.I don`t need a new one they do  The scoot is a chain drive, not a CVT and takes regular old motor oil (10w-40) in it. Doesn't need to be synthetic either, since it's just lubing the chain and clutch. I don't remember the volume of oil but it's somewhere between 300mL-350mL. CVT lol what was I thinking?? |
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Post by Karl on Sept 25, 2008 20:41:26 GMT -5
SBH, unless the battery is really sulfated, sounds like you had the right plan! Where did you get the acid? That's a great idea.
Karl
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Post by S.B.H. on Sept 25, 2008 21:00:10 GMT -5
SBH, unless the battery is really sulfated, sounds like you had the right plan! Where did you get the acid? That's a great idea. the Napa store,back in my younger days I would rebuild my batteries: drain over ant hill,flush with water,top off add baking soda to each cell let it fizz rinse again,top off with water,heat it up with charger=5 amp batt hit with 10amps boil water rinse again several times and top off with fresh acid and trickle charge good as new  work most every time,but of course we are talking about kick start dinosaurs. or how about this for a weak batt,,give it an asprin! |
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Post by S.B.H. on Sept 29, 2008 19:32:41 GMT -5
OK 1ve finally had a chance to mess with scoot also it is a 2002 motor # DIE41QMB-2 30029784 . I`ve cleaned carb now what are my starting points for air and idle they are both at 2 1/2 turns at wot it acts like it might start. Also petcock was bad so it is gutted for now and oil line is plugged{running pre mix} and vac line on carb and petcock is plugged too. Spark is blue white,is getting fuel,,,, Plug is wet when I pull it but almost looks like it has water drops on it?could it have water/condensation in motor? Is it ok to run it for testing with vac lines plugged and gas running straight into carb it`s not drawing too much gas like this??I feel I`m just a couple of adjustments from running and a side note ,,,was told "it ran good then carb starting messing up,it has not set too long"translates to "it run good till carb clogged up from no fuel filter,they we fiddled with it till it would not run at all" it is a 2002 with 747 miles on it so how long ya think it sat under the shelter?  sheesh! anyways if I can get it to run half assed they will spring for parts needed,thinking with 747 it might be worth rebuilding carb or should I just shoot for new one? oh yeah considering it was a cheap scoot to start with how much is too much before its a junker for parts?? 200 to 300 ? any more than that would be kinda dumb don`t ya think. thanks in advance |
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Post by Karl on Sept 29, 2008 19:44:18 GMT -5
As far as the air screw, start 1.5 turns out from seated. Not sure about the idle, though, but you don't want screwed too far in or else you're lifting the slide.
Sounds like you have water somewhere in the system. What about in the fuel tank? Any sign of it in there? Maybe add a little HEET or Sea Foam to the fuel.
I'd also drain the carb bowl into a clean container and take a look in there. If there's water in the gas tank then you'll see it in the carb bowl. If you don't see water in the container then you may have some in the crankcase.
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Post by S.B.H. on Sept 29, 2008 19:54:51 GMT -5
there was some varnish in the tank  but flushed it fuel is fresh,and carb was dry and dirty.so I don`t think it is fuel system maybe more like some h2o in motor case??, we do have hurricanes here and it rains side ways and up sometimes too  . I`ll readjust air and idle screws again and see what happens. |
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Post by Karl on Sept 29, 2008 20:38:03 GMT -5
You could also pour some premix (with HEET or SeaFoam added), directly into the crankcase and swish it around, then remove the spark plug and kick it through until it runs "clear". It'll probably make a mess but at least you'll get out all the moisture.
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Post by S.B.H. on Sept 29, 2008 21:57:11 GMT -5
Ya thats kinda what I was thinking,is there such a thing as a drain plug in motor case??? I`m still not even sure if thats the problem but thats what I thinking or maybe just some nasty old mix.I will try again tomorrow starting with air and idle screws and go from there
if there was a drain plug I could flush it and maybe put the air hose to sparkplug hole and blow it?
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Post by S.B.H. on Sept 30, 2008 10:01:32 GMT -5
;D IT~S ALIVE ! After adjusting idle and air screws it was acting like it wanted to start,notice exhaust was smoking.Something told me to loosen up pipe,left it on the studs. Boom! it fired right up! seems to run great! started to tighten pipe and it wanted to die,so how do I unclogg pipe? for all I know wasps or mud dabbers may have shacked up in there for awhile. |
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Post by S.B.H. on Sept 30, 2008 21:32:53 GMT -5
I was joking about mud dabbers,,,,,,,,,guess what....flip`n mud dabbers took a coat hanger and rodded out pipe hit it with the air hose and a almost new pipe again.
So I think first thing back when ever was most likely the petcock hense the carb trouble and then everything else is just from sitting so long.Motor now sounds like a motor with 700 mi on it!parts is as follows petcock,fuel &vac lines,fuel filter,S-tube from carb to air box,new battery,thanks for your input Karl.oh yeah by passed the oil pump is 50:1 pre-mix about right?
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Post by Karl on Oct 1, 2008 8:14:10 GMT -5
SBH, When I read the first part about the muffler sounding clogged, the first thing I thought about was some kind of bugs in the exhaust! That's too funny. I'm glad you got it cleaned out. I think that as you put more miles on it might rattle more mud dauber's nest pieces out of there. I was told that the ratio is 40:1 with the oil injector. This info came directly from the general manager of the Strada line (Alan Leson of www.powersportsfactory.com ) |
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Post by S.B.H. on Oct 4, 2008 13:57:06 GMT -5
Yep mud dabbers were in there,way to funny I was joking about it did not think it was the problem.I`ve put a couple of mi. on it and it is a slug! goes about 28 to 33 and is really slow outa the hole but putts right along.It is kinda like a farm implement slow and steady. All in all I enjoyed fixing it and it is what is,only thing I`m gonna beg them to do is replace the dry rotted 3.00 tires with some 3.50`s them little 3.00`s suck big time and are dry. Kinda funny going down the road blowin` blue smoke and wasp guts and sh!t out the pipe LOL thanks again for the help |
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Post by Karl on Oct 4, 2008 23:16:27 GMT -5
You hit the nail on the head with the chain drive scoots. You have to "Fred Flinstone" to get you going at stop lights but once you're rolling past 10 mph they're ok. 28-33mph sounds right on the money.
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Post by S.B.H. on Oct 6, 2008 11:23:14 GMT -5
You hit the nail on the head with the chain drive scoots. You have to "Fred Flinstone" to get you going at stop lights but once you're rolling past 10 mph they're ok. 28-33mph sounds right on the money. So that is normal??? I thought it was just cuz it had not been ridden in some time and clutches where just kinda icky from sitting  |
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Post by phaze on Oct 10, 2008 7:08:30 GMT -5
my kids sh!tter has 6500 miles on it and it starts everytime lol,plus 2 on the flintstone, she cruises 2 up all the time lol
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work most every time,but of course we are talking about kick start dinosaurs. or how about this for a weak batt,,give it an asprin!
sheesh!
but flushed it fuel is fresh,and carb was dry and dirty.so I don`t think it is fuel system maybe more like some h2o in motor case??, we do have hurricanes here and it rains side ways and up sometimes too 
. I`ll readjust air and idle screws again and see what happens.