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Comments or questions can be about any model moped...and be either technical or mechanical..
Restoration or just fixing...
Tip's on peformance are welcome..I'm not at fault if you get a ticket for making your moped go to fast..
Open since July 17, 1999
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I just sold my Honda NX50M SR on Ebay, now I have to calculate shipping, How much does it weigh? and need some Ideas on how to ship it cheep, Thanks, Bill
Posted on Apr 4, 2004, 6:33 AM from IP address 69.212.56.79
the tail light filament is hooked to the brown wire going to the light.
the wire should be on when the key is on, if the battery is dead it won't come on until the engine is running..
if the brown wire is not on trace the connections to find the bad spot.
start at the back and follow the wiring to the front, most of the connections are in the headlight housing, behind the headlight.. the brown wire hooks into the key switch
TheMopedWhiz
Ride Mopeds..SAve Gas..Have Fun
Posted on Apr 4, 2004, 8:42 AM from IP address 151.144.165.66
I have been looking on ebay and some other scooter sites, does anyone know a good place is to find one? I would like to swap one into my elite E, thx -Nick
Posted on Apr 3, 2004, 3:27 PM from IP address 24.236.200.190
Is there a good aftermarket exhaust for the SR and, if so, where is it available? Is there a big bore cylinder kit that someone has had good success with? If so, what carb was used with the kit?
Parts needed: airbox complete (right side and left side), rear fender assembly, exhaust assembly, 1982 owner's manual, headlight assembly, etc. Would consider a parts bike also.
Posted on Apr 3, 2004, 5:49 AM from IP address 207.191.236.63
i gutted my muffler and it runs so lean, youll need a bigger jet to start.... i dont think airbox is holding you back, i would do the bigger jet first... if you find one, post here please. im looking for this junk too!
thanks.
Posted on Apr 5, 2004, 1:16 AM from IP address 65.102.113.109
There are several larger main jets available from Honda. For sure you can get a #78 and a #80, but then the question is does the oil injection increase to keep the proper ratio in the gas? Anyone got any experience in this? In addition, there should be someone who makes an exhaust for this puppy. Just gutting the stock exhaust is not the best option.
Posted on Apr 21, 2004, 2:32 PM from IP address 207.191.236.50
Hello everyone, new to the club.....Can somebody tell me how to properly adjust the carburetor on the above referenced moped. Also, others have told me that this ride is an 'A3' but I have never seen that anywhere on the ped. They've also told my I have a 'Silver Buller' but once again, all it really says is 'Bullet'. Please help.
Posted on Apr 1, 2004, 11:39 PM from IP address 67.126.140.210
If it's an Encarwi or a Dellorto, you can only adjust the idle speed,but not mixture. I have a Silver Bullet. They generally have a battery and turn signals and mag wheels. don-ohio
Posted on Apr 12, 2004, 12:36 AM from IP address 12.109.127.66
I took my bike in for a tune up and the people there broke my throttle cable (aargh!) and I cannot find another to replace it. I found one for a 1980 express II, but it is barely too long. The people threw away the old cable so I can't use it as an example to get one custom made. If anyone has any information about the specs on the throttle cable for a 1979 Honda Express II NA-50, I would really appreciate your help.
Posted on Mar 31, 2004, 10:03 PM from IP address 24.119.13.90
can anyone tell me if a two-stage centrifugal clutch off an urban will fit an '80 model express? and can anyone tell me the piston size in a '80 model express?
thanks
Posted on Mar 31, 2004, 6:37 PM from IP address 203.51.250.85
about every 2 miles, the main jet gets clogged and wont let gas through, and i have to take apart and clean, its not the gas nozzle or a clog in the tank or a bad hose, its the jet that clogging up, why does it keep getting clogged? a bad needle maybe? do i need to adjust the needle? i do not have a fuel filter on it, could this be causing the problem? i sometimes can see dirt particles in the fuel hose, but they look so small that i dont think the fuel filter will stop it, any other ideas on what it could be? any advice would be appreciated, thanks Mark
Posted on Mar 31, 2004, 2:10 PM from IP address 64.151.21.87
If you can see stuff in your fuel you have a serious need for a filter. AFTER you clean your tank.
Filters will stop stuff you can't see at all.
This is certainly your problem. Clean the tank, add a filter and you still may have to clean out your carb.
Posted on Apr 2, 2004, 2:28 PM from IP address 68.102.137.155
Hi i would like some help on how i can get my moped to travel a bit quicker than 35 on the falts which is what it is doing at the moment. Can you help?
Thank you
Matt Hayden
Posted on Mar 30, 2004, 4:54 AM from IP address 62.171.194.40
ok so i got the biturbo on and i have noticed a thing
it was running a top speed of 30-35 for a while the recently it has dropped down to 27 wtf
i dont have the idle and air mix adjusted right i guess
also what year did they start using unscrewable jets?
i have a 81
i checked my sparkplug out (new) and it was half tan and half wite
i know that white is bad but can i adjust the air screw to make up for it?
i have searched but nothing really answers my question
also when i am starting out untill the engine warms up it seems it sputters alot
but now recently it does it all the way up to top speed
it would be really cool it this question was posted on the express info page that way you could always direct ppl there instead of answering it everytime
also when ppl put not spacific/ informative subject lines it doesnt help the search much
~jesse
Posted on Mar 29, 2004, 2:41 PM from IP address 68.102.199.230
hey whiz
i dont have a bore kit jut the biturbo
im running a 4 sparkplug right now
how in detail to i tune the carb so that i work out all the problems mentioned in the first post
would premixing be BEST for me even if i dont have a kit
thanks for the help
~jesse
Posted on Mar 30, 2004, 6:52 AM from IP address 68.102.199.230
you know you are going to get exactly the same gas-oil ratio at all times..
these pumps don't always work as well as they did when new..
the pump system relies on the pump injecting/blowing the oil into the incoming air gas stream and premixing fuel eliminates that and makes for a better system and was design with the original air flow, which is now faster because of the mods
it makes adjusting the carb less work , because it usually once you get it set you won't have to change it
TheMopedWhiz
Ride Mopeds..SAve Gas..Have Fun
Posted on Mar 30, 2004, 8:44 PM from IP address 151.144.165.84
Thanks mopedwhiz, u were right about my scooter's low compression. (I posted a month ago or so, u might not remember). So what to do about it? I have the original piston and cylinder. I think I could easily swap that in. But could I also repair the big bore kit without buying a new one? Bore it out or something and put in another piston?
Well, right now the compression is 75. It runs and goes not bad at all. Definitely has more pep than with the 50cc engine it used to have. But I'm sure it's hell on gas, that doesn't bother me. But how long can I keep driving it like this? What can I do to prevent more compression loss? I had the oil pump rigged to full open, but when I checked compression the chicken wire had come loose and no longer was open. So I dribbled some oil directly into the gas. Is a cap full for a 1.5 gallon tank approximately ok? (Like a cap on a 10w-40 oil container)
I know I probably won't be bringing it back to the university next year. I hope to bring my car instead of flying to save money. The scooter will take it's place in my pile of things I'm saving because of sentimental value, and no monetary value
Thanks yall,
Nate
Posted on Mar 29, 2004, 12:26 PM from IP address 128.253.199.115
disconnect the pump output hose from the car/intake nipple
Cap the nipple ( no vacuum leak )
and plug the hose... drain the oil tank
for most people it best to premix the gas & oil in a gas can.. say 2 or 3 gallons
so you get the perfect mix..
shake the can well , before filling or topping off your scooter tank
when the can is empty ( not the tank ) mix a new can of fuel.. that way you will always have the same mix
adding oil to the tank and then putting in the gas.. is usually a hit and miss problem.
unless you know exactly how much gas the tank will hold and carry a pre-measured bottle of oil and drive into the gas station as soon as your scooter starts to sputter..
yes you can carry the bottle for emergencies.. and use the can .. then if you get forgetful or what ever you won't have to push the scooter home
I carry a 4 Oz bottle in the tool pack, but i try to keep the tank topped off with the premix can..
if i run low/out i pour in the oil and pump exactly 1 gallon of gas into the tank.
TheMopedWhiz
Ride Mopeds..SAve Gas..Have Fun
Posted on Mar 30, 2004, 8:34 PM from IP address 151.144.165.84
if i went pre mix what ratio should i go if i only have the biturbo... how much gass will i mix with one grt of oil? (so i know how big of gass can to buy
and
is there any way to open up my half oil half gass tank so that the whole thing is gass (so i can go further without refueling
also
what does bogging and sputtering tell you about lean/rich problems and oil mixing ratios
and
does a 81 pump a diffrent type of gass when its at full throttle vs idle and does a older version pump a constant rate of oil
~jesse
Posted on Mar 31, 2004, 3:11 PM from IP address 68.102.199.230
the ratio is 25:1.... 4 Oz of oil 1 gallon of gas..
the premix ratio for the express is ALWAYS the same.
the pump squirts 1 shot of oil per revolution of the crankshaft..
Honda builds the pump so that on a stock bike the oil squirt and the gas from the carb jet equal approximately this ratio 25:1
when you change jets, exhausts, cylinders and the like or combinations of these things, you change the amount of gas but you can't modify the pump. So you end up with NOT ENOUGH oil and things get screwed up.
stock bike with a bad pump or a big bore and bi-turbo exhaust it still uses the same oil ratio..
this is the ratio of oil to gas that the Honda engine needs in order to keep working right..and stay together
TheMopedWhiz
Ride Mopeds..SAve Gas..Have Fun
Posted on Mar 31, 2004, 9:12 PM from IP address 151.144.164.81
I need some NX50M 1982 parts or a parts bike. Please contact me with what you have. Need: Headlight assy., exhaust assy., rear fender assy., right side of airbox assy., etc.
Posted on Mar 29, 2004, 10:40 AM from IP address 207.191.236.58
I have an 84 Honda Spree that I took to a dealer because it kept blowing the fuse every time I turned the key on. I got the bike back (along with a bill for $184!!!) and the horn had been taken out, the brake light didn't work, and I got a song/dance from the service dept over the phone that "parts weren't available, so we had to do a jury-rigging wiring job".
Well, I got it running, but I don't think it is charging the battery, and the brake light doesn't light up. The bulb is good, both wires coming into back of rear light socket have power to them.....what can I do to make the brake light work? and how can I tell if the battery is getting charged? How long does it need to idle to charge the battery?
Posted on Mar 28, 2004, 7:47 PM from IP address 216.180.197.202
I have a 1989 Elite E, the starter motor took a **** on me and the engine cover (one that holds the kick start moon gear) has also broke (kick start won't work due to this). So I have no way of starting the scooter.
I bought a 1987 Elite LX motor the one that has a black cover. I was wondering if the starter motors are the same, and what I would need to do to swap the LX motor into the Elite E, or what would be my best option.
The elite E motor needs
-Starter
-Engine cover
Here is a pic of the LX engine so you can see what I all have
I started with the Iowa spree going 25mph i believe. Got a normal spree muffler, drilled it. Got a K&N cone type filter, Did the pulley mod. After all this it only goes 30!! I can only think of a few things that might cause this...
Air leaking in near the carb
Needs a new top end. What should the compression be?
The Clutch pads are pretty bad could this cause it?
The automatic choke being bad?
The clutch pads look pretty bad... But if it were the clutch causeing this problem wouldnt the bike start off really slow but still reach a higher top speed than 30mph? It doesnt feel like its slipping but ive only ridden this spree before so i cant compare.
One more thing. I wanna buy an Elite 50cc something like a 91. but older is ok too. Ive searched ebay and cycletrader with no luck, any idea's where to find one?
Thanks!
Posted on Mar 26, 2004, 8:02 PM from IP address 24.117.22.123
My 86 was going about 27mph It is bone stock, I just put a new air filter in and I got about 32mph out of it. I am going to Drill the exhaust, and do the pulley mod. My spree has about 900 miles on it, I think last time I checked the compression it was about 120psi.
I also have an 89 elite that I need to get going, I ordered parts three days ago so it should be going soon. I would like to see how it holds up next to the spree. Elite has a new top end. -Nick
Posted on Mar 27, 2004, 3:15 PM from IP address 24.236.200.190
Now that the bore kit is installed and everything should have been ready it only allows me to kick the the ratchet start down like 4 times and when I press the brake lever it turns over but only once. When I pull off the points chrome cover I can turn the screwuntil it feels like somehting releases like a spring in the crankcase but agian only allows me to kick it down 4 times.If I take the crank case cover off I dont want any springs to release so how should I take it off so that wont happen. And if anyone knows what the problem is please help me I really want to start riding again.
thanks geoff
Posted on Mar 26, 2004, 12:31 PM from IP address 198.81.26.74
..........meantime do a search on this forum on `starter spring' or various other terms. When the results come up,hit `cached' and it will highlight you on the correct page. don-ohio
Posted on Mar 27, 2004, 11:05 AM from IP address 63.155.197.121
I have took off the spark plug to see if the compression was the problem and it wasnt. I can release the spring through the points cover but i have to do that each time I want to kick the engine over, and I dont want to keep doing that because the bolt is getting stripped. Im almost positive it is in the crankcase. Awhile back my engine seized due to piston rings sliding on the inside of the piston while it was running and the back wheel skiided to a stop, could anything have happened then.Please help......Geoff
Posted on Mar 28, 2004, 4:22 PM from IP address 198.81.26.74
i am confused and so are some ebay customers
what year of wheel will fit on what year of express
i have a pair of junk 79 NA50 wheels ...will they fit on a 81 NC50 ?
will a pair of 78 wheels fit on a 82 2 speed
are there diffrences in the soline from a 2 speed and a one speed?
~jesse
Posted on Mar 26, 2004, 8:34 AM from IP address 68.102.199.230
