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have my honda express. Thge carb is rebuilt and the top end with new gasket. It was decarbonized. I figured that the pipe was fine because it was very very easy to blow through. It isnt clogged up. When i ride when iam at or appraching the top speed it smokes whiteish. I smokes to moderate to heavy. I know for certain this smoke isnt normal…
whats wrong?
I didnt post this question before i left so i have a update on the question:
I just took of the plug after a 30 hour ride. It is near perfect! a greyish brown tip and elctroide. So does thie mean my oil injector is running good? Other wise it would be fouled and black? So it has to be my exhaust pipe…
FYI im using a suzuki 2 stroke injector oil
How can i clean out the pipe?
Posted on Oct 10, 2005, 12:54 PM from IP address 24.58.39.139
I desperately need to find a replacement petrol pump for my wife's Gyro 'Up' (the one with a small flatbed at the back) - can anyone help please? Or at least point me in a direction where I might find parts?
Best regards
Grahame
Posted on Oct 10, 2005, 5:00 AM from IP address 213.16.201.81
The pump that the Gyro has isn't electric, it's a very simple diaphragm item that has one inlet from the fuel tank and then three outlets - one goes to the carb supply, one is connected to a spigot on the manifold and the other is the overflow.
My problem is that when the engine is running the petrol just pours out of the overflow pipe and I can't work out why, I opened the pump and everything seems OK and the carb has had a new jet/needle/seal kit fitted.
I also tried tweaking the float level but that didn't seem to help either - any other suggestions?
Many thanks
Grahame
Posted on Oct 12, 2005, 7:03 AM from IP address 213.16.201.100
I've been trying to get my home built minibike licensed and registered in Minnesota. I've been getting quite the run-a-round by the DMV and inspection offices. My bike conforms to all the safety and engine requirements for the state, which are pretty much the same all across the country. I have reciepts for all the parts so the guys at the MN inspection office said they could assign a VIN for me, and I assume with that I can get the title since I'm the original owner. With the title and VIN and inspection passed, all I would have to do is go to the local DMV office and get a plate and tabs.
THE PROBLEM IS the guys at the inspection office basically said they can't pass any vehicle without a Federal Safety Sticker on it. I checked my cars and sure enough they all have it (on the driver side door). NO ONE knows how or where I get this sticker or what kind of inspection needs to be done. No one even could tell me the agency who gives the stickers!
SO does ANYONE know where to get the inspection that yields that sticker. And will I have a problem with that inspection since I won't already have the VIN or title yet?
Any advice would be appreciated (except for me to give up, which I've had plenty of already
Posted on Oct 7, 2005, 3:27 PM from IP address 66.41.251.177
.....it justs transfers power from the battery to the starter........any `plain jane' solenoid of proper voltage can do that. So you're probably not stuck with just that exact component. don-ohio
Posted on Oct 30, 2005, 3:14 PM from IP address 12.109.127.66
Last month I posted this problem as an high rpm flutter. I checked a couple of items based on the Whiz's suggestions but am still having trouble. The bike accelerates strongly and gets right up to speed, but once peek (high) rpm is reached for a few seconds it suddenly looses power, sounds like an engine with a high speed jet that needs to be richened up a little bit. Have moved the throttle needle clip up and down and it made things a bit better but not much. I ran it till it flutter and shut the key and fuel valve off at the same time. Seemed to get plenty of fuel out of the bowl, at least a shot glass full. Was going to adjust the float a little to try and increase the amount of fuel in the bowl but the float has a plastic flange not metal so am not sure if it can be adjusted.
Any ideas? Could it be ignition and not carb. relatated?
Posted on Oct 3, 2005, 5:08 PM from IP address 209.247.222.41
It has been my experience that a high speed flutter on 2 strokes can be caused by the intake reed valve. It may need to be replaced or sometimes you can just take it apart and turn the reed over.
Posted on Jan 3, 2006, 7:19 AM from IP address 142.68.90.45
...........not getting enough air volume thru the airbox. Loosen the airbox and see if it levels out correctly at high rpms.
Also, a weak spark plug can cause it or if it has points, they can be needing filed or replaced, or maybe they are gapped wrong. don-ohio
Posted on Jan 3, 2006, 9:54 AM from IP address 12.109.127.66
I bought this new last month and so far(325 miles)I really like it. It will do 35mph but it takes 2 city blocks to do that. For what I use it for,cruising at 20 mph it works fine. I would like to "tweak" the engine not to go faster but faster acceleration to 25-30mph. It just seems the engine is working to hard to get to these speeds. This is my first 50cc so I would assume this is normal for this type of bike. Like I said I don't need the scooter to do 50 mph,just need quicker responce at the lower speeds. Have read a couple of reviews on this model and both had there engine's "tweaked" and they were very satisfied. Can they be tweaked and can I do it? Thanks for the help.
Posted on Oct 3, 2005, 10:23 AM from IP address 69.18.28.113
Mine is partially restored and is compltley cleaned. Im using suzuki 2 stroke injector. My ped started to smoke after around 1000 miles. Right now i have around 1600 on it. Around 1500 i rebuilt the top end using new gaskets, de carbonizing it, etc. I figured my exhaust didnt need cleaning since it was very easy to blow through. The carb is sonic cleaned and rebuilt. Runs very well and tops around 27 issh. I also gapped and check the battery and fuses. What happens with mine is when i start it (starts usually on fist start) you can accel then about 5 secs later in starts to smoke as if it was clearing its throat out. But after that is runs very well. Except sometimes, when im at full speed crusing it smokes white smoke? What can be doing this. Also when i checked the exhaust pipe and looked down it it looked wet. Also if you touch the end of the pipe with your finger it drips a sag of black oil on your finger. Should i clean the exhaust? or run premix? How can i clean out the exhaust?
Posted on Oct 1, 2005, 9:48 AM from IP address 24.58.39.139
...........if you have a float leaking or bad needle valve, it could happen. But it wouldn't start on first kick unless you've been shutting off your petcock when you stop it. If you leave the petcock on and it floods,you've found the problem....float or needle valve bad or dirty.
don-ohio
Posted on Oct 3, 2005, 8:11 PM from IP address 12.109.127.66
carb was sonic cleaned! Im sure its not the carb. Possibly its the exhaust? I think thats what it is! Do you know any methods of cleaning one out? if so could you tell me how....Whyen i checkd the pipe out after i rebuilt the top end, it blew very easy. But i heard that it can blow easy and still be filled with stuff....hmmm
Posted on Oct 4, 2005, 5:13 PM from IP address 24.58.39.139
..........that the float and needle valve operate properly,just that they are clean,right? When a float or needle valve or even the seat get corroded or leaky(float), you will get flooding. Re-read my post........does it flood and smoke when you DON'T shut off the petcock?
If you can easily blow thru the exhaust it isn't plugged. If it's a chromed exhaust, you can't char-broil it to burn out the carbon. If it's a steel exhaust just char-broil it over a barbecue, and then re-paint it after you shake all the carbon out. don-ohio
Posted on Oct 10, 2005, 2:13 PM from IP address 12.109.127.66
Does anyone know if a loose clamp on the oil pump, allowing the oil pump to turn, would cause the oil pump to flood the engine with oil to the point that it drains the tank in minutes?? MopedWiz??
Thanks,
Pete S.
Posted on Sep 30, 2005, 10:49 AM from IP address 69.95.160.214
no it shouldn't. dang thats one heck of a pump, but more likely the oil is just flowing though the pump into the crankcase without any problem. Open up your oil pump and see if you are missing any parts. athere is a scematic of it in the shop manual avaliable on this website. mabe any hoses are disconected? but it is most liekly your pump. if u do have to get a new one they are avaliable on www.bikebandit.com for the amazing bargain price of $80.00 haha.
Good Luck,
Chris.
Posted on Oct 4, 2005, 9:45 PM from IP address 68.201.97.184
Hey! The loose oil pump turned out to be the problem with my Honda Express. The pump turned clockwise probably 1/2 turn and stuck there. This opened up the oil valve wide open and allowed the oil to flow at full rate even at idle. A new bolt and repositioning the pump correctly put everything back to normal and working fine. Thanks for the help and suggestions to all! Pete S.
Posted on Oct 6, 2005, 4:55 PM from IP address 69.95.162.123
hi all,
my moped is acting up again. but i think i see the problem, the gas keeps turning blue (oil keeps getting in it) so whats the deal? when does it do this? i did run out of oil and rode it aroung a lil bit like that. would that cause it to put all the oil in the gas? im so confused someone please help. also would that cause it to start up with the choke on but the die when you gas it?
thanks
~eric
Posted on Sep 30, 2005, 9:08 AM from IP address 137.49.243.18
hmmm that should not be a problem cuz its a 2 stroke. Isnt gasoline naturally blue? or does it change colour by the angle u look at it? hmmm but i dont think it should be causing a problem. if it really is mabe leaning it out might work (increase the amt of air in the fuel/air mix). but i am not exactly sure on that one.
Tell what happens, sorry i could not help more,
Chris.
Posted on Oct 1, 2005, 9:44 PM from IP address 68.201.97.184
NEED HELP FINDING SERVICE MANUAL OR PARTS INFO ON A QINGQI MOTOR SCOOTERS MODEL QM50QT-2A
by
(no login)
HI I HAVE A 2004 QINGQI QM50QT-2A THATS IS MANURFACTORED BY THE COMPANY KNOWN AS ( CHINA QINGQI GROUP CO..LTD ) WHICH I BOUGHT HERE IN CALIFORNIA WELL NOW THE LIL COMPANY I PURCHASED IT FROM HAS VANISHED AND I NEED TO GET SOME SORT OF SERVICE MANUAL OR CHILTONS TYPE OF BOOK/MANUAL FOR THIS SCOOTER SOME PEOPLE HAVE TOLD ME THE ENGINE SETUP AND THE WAY ITS ALL PUT TOGETHER IS THE SAME AS A 49CC AMERICAN MADE SCOOTER AND SOME HAVE TOLD ME THERE NOT SETUP THE SAME AND THAT THERE DIFFERENT, WELL I WAS HAVING A FRIEND WHO KNEW WHAT HE WAS DOING UPGRADE THE ROCKET PIN WELL HE DECIDED TO TAKE MORE THINGS APART ON THE SCOOTER THAN NEEDED THEN HAD TO LEAVE REAL QUICK AND I DONT WANNA HAFT TO WAIT TIL HE RETURNSIN 4-TO 6 MONTHS AND I CANT FIGURE OUT EACH PART CAUSE OF THE LACK OF ENGLISH WRITTEN INFORMATION ON THE MOTOR AND E.T.C AND I CANT LOCATE ANY TYPE OF HELPERS GUIDE OR SERVICE MANUAL FOR THIS MANURFACTOR OR THIS TYPE OF ENGINE SO THAT I CAN PUT THE PARTS BACK CORRECTLY AND NOT SCREW IT UP
ALSO BEFORE I END IF YOUR READING THIS AND LIVE IN OR AROUND THE SAN JOSE CALIFORNIA AREA AND KNOW OF ANY SPOTS TO BUY USED OR KNEW PARTS AND OR ASSORIES PLEASE LET ME KNOW IM NEW TO THE AREA
I SAW IN THE MAIN PAGE A LINK TO SOMEONES WEBSITE FOR A PARTS JUNKYARD FOR SCOOTERS IN SAN JOSE BUT THE LINK IS NO MORE GOOD
THANKS AGAIN
SO IF BY CHANCE THERES SOMEONE OUT THERE THAT CAN HELP ME OUTTO FIND SOME USEFUL INFORMATION OR A LINK OR POSSIBLY HAS A MANUAL OR KNOWS WHERE TO GET ONE PLEASE CONTACT ME AT
BOB WILLIAMS
FUNKOMATIC808@AOL.COM
1-408-871-1679
Posted on Sep 29, 2005, 2:20 PM from IP address 207.200.116.71
Mopedwiz;
You already told me that my oil pump is perobably bad, engine runs but drains the oil tank very quickly even at idle. I am going to go with your suggestion of pre mix. While I was disconnecting the oil supply lines I found that the clamp screw that holds the oil pump in place was missing. Would this have any effect on the pump operation? The pump was still in place but of course loose.
Thanks,
Pete (Newbie in the moped world and at 65 still willing to learn. )
Posted on Sep 28, 2005, 5:11 PM from IP address 69.95.161.21
hi all,
im a college student at U of hartford CT. and i love my moped, i seriously save like an hour a day not walking to class. BUT, its getting cold. at what temps do yall think i can get this thing started? keep in mind that i HAVE TO keep it outside but whats the deal? do people in alaska use express's?
THANKS!
~erk
Posted on Sep 28, 2005, 4:41 PM from IP address 137.49.243.18
I have riddin mine in cold weather before, pack a jacket... as soon as u get it started let it warm up for a good long time. In my experience mopeds are extremely tempermental when it comes to temperatures. It took me forever and a day to get mine to start. Just make sure your oil/gasoline dosn't freeze over night.
Good luck,
Chris.
This message has been edited by themopedwhiz from IP address 69.83.52.206 on Oct 8, 2005 3:16 PM
Posted on Oct 4, 2005, 9:50 PM from IP address 68.201.97.184
I have a xtreme Key West 50 Scooter
I ran the engine out of oil. Now it is smoking like crazy. How can I fix it without rebuilding the engine? Or can I put a 125cc engine on the bike. If so how would I do it. I can only spend $500 to fix the engine. A new engine will cost me $800 for a 50cc engine. The same engine that was on the bike when I bought it. Any help would be appreciated.
Thank You!!!
P.S. God Loves You And Have A Good Day!!!
Posted on Sep 27, 2005, 8:18 PM from IP address 70.240.136.181
OK, it's a nice day and I decide to work on my '78 and '80 NC50's. They've been sitting for about 6 months while we played with our new toys - CT 90's and CT 110's. Anyway back to the problem. The '78 had a cracked carb bowl that I temporarily JB welded until I found a new one. I got a new bowl but since it wasn't leaking I never replaced it. Well today I decided to replace it and that's where the trouble started.
When I took off the old bowl I decided to clean the main and idle jets and check the float. I pulled out the jets (mine are removable) cleaned them with carb cleaner, put them back in and put everything back together. Now when I start the NC, it idles for a few seconds then starts increasing RPM's until it's racing at full throttle. The throttle piston moves up and down correctly but has no effect on the engine speed. It acts like it has a vacuum leak, like it's pulling air from somewhere other than through the throttle body, but if I put my hand over the intake it'll die so that can't be the case. Also, when I put my hand over the intake, it causes gas to come out of the carb into my hand.
I tried putting the old bowl back on thinking that was the problem, but the same thing happened. I've had the carb on and off probably 50 times looking for a problem and can't see anything obvious. I was even going to change carbs but the other two I have do not have the same size throttle cable screw.
Only thing I can think of is that maybe the rubber
o-ring on the main jet is deteriorated and is allowing fuel/air to bypass the throttle needle - it is a bit loose. The other two carbs do not have removable jets or I would try one of those. Anyway before I go any further I thought I'd ask if anyone has seen this problem. Thanks
Posted on Sep 27, 2005, 4:33 PM from IP address 69.230.193.119
I just thought of something else. What if I re-installed the float incorrectly and it's not shutting off the incoming fuel to the carb? Would that cause fuel to flood the carb and overflow into the cylinder and the engine to race out of control? I think I'll go try to start it with the bowl full and the fuel shut off. I'll be back !
Posted on Sep 27, 2005, 5:08 PM from IP address 69.230.193.119
can you help me, i need to find the year of my nu50 to re-register it on a proper licence plate rather than a restoration plate (q plate) as this would lower my insurance costs a lot.
the serial number is 5000534 if it helps at all
thanks
Posted on Sep 26, 2005, 8:14 AM from IP address 62.253.128.14
hi all, my bike has been great at school so far for going to class and getting groceries. but now: it will start fine with the choke all the way out and it will go a little bit like that but as soon as you bring the choke back in it dies. no matter how long its been warming up. i tried readjusting the mixture screw to be a little richer but still, nuthin. but as long as you keep the choke out, it idles just fine. ideas?
Posted on Sep 26, 2005, 7:15 AM from IP address 137.49.243.18
TheMopedWhiz will surely be along soon with some good pointers and some specific fixes. I also had that problem when I first started working on mine. I found out that I never cleaned out the carb well enough. There is one tiny jet that is about the diameter of one or two strands of speaker wire. I used the wire to poke out the junk along with carb cleaner and then installed an in-line fuel filter. The fuel filter has fixed all my problems since the gas tank was a little rusty.
Let us know when you get this one figured out.
Matthew Scholtens
Matthew Scholtens
Posted on Sep 27, 2005, 4:02 AM from IP address 67.172.70.32
but whats the deal? do people in alaska use express's?