Trying to bring a 1985 scooter back to life! It's almost alive but I need help!

cjchaps

Diamond Member
Jul 24, 2000
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The Short Version:

I got a free 1985 80cc Honda Elite Scooter from a guy at work that hasn't been run for 10 years. I changed the fuel, got a new battery,e cleaned it up, opened the carb and it had gunk in it so I cleaned that. So now, I can start it up with starter fluid, but I have to keep the revs pretty high, or else the engine will stall. So now, I need some help. What should I check next? Any suggestions?


The Long Version:

So, this guy I work with gave me a 1985(?) 80cc Honda Elite scooter for free. It's been sitting in parking garage the past 10 years! So, I borrowed my dads van and picked this thing up.

The first thing I did was to go and make a key for it, since the guy from work didn't have the key. I then went and bought a battery for it.

The next thing I did was to drain the 10 year old gas in it, and put some new 87 octane in.

I've never worked on engines before, except to change spark plugs, so I called my motorhead buddy over to help out.

The first think we tried was to see if it would run. It didn't. It just kept cranking. We then got some starter fluid, and sprayed it in the intake, and it actually turned over and would run off the starter fluid. This told us it was having fuel delivery problems.

So we started to take it apart to see what kind of condition it was in. We found that the carburetor didn't look so good, so my buddy took it apart and cleaned it with some carb cleaner, then we put it back in and still it didn't work. After a while he had to take off, so I was left with a non-running scooter.

My buddy quickly cleaned the carb, and didn't open up every part of it to clean. So last night, I took it off and cleaned everything I could find. I found that there were two metal shafts screwed into the middle of the carb, with little holes in them. I guess those are the misters/difusers/injectors??? Well, the little holes had all kinds of junk in them and were plugged up, so I cleaned them out, and one of the shafts wad hollow in the center, so I cleaned that out as well. I also made sure that air could move through each of the gas and air intakes, and made sure they were not clogged. I also make sure the throttle moved up and down, and basically worked.

So I put the carb back together after cleaning it, and put it back on the scooter. I then cranked the engine, and nothing happened I then started cranking it while using the starter fluid, and it started running on it's own !!! I took it for a quick spin around the block, but I had to keep the revs up, or the engine would die.

So now, I can start it up with starter fluid, but I have to keep the revs pretty high, or else the engine will stall. So now, I need some help. What should I check next? Any suggestions?
 

tnitsuj

Diamond Member
May 22, 2003
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Did you check the fuel lines? I would bet they are gunked up and useless after all that time. Do a fuel pressure test.
 

tnitsuj

Diamond Member
May 22, 2003
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Also, when you cleaned the carb did you actually take it apart and soak all the parts in carb cleaner, or did you just spray everything down? If you do dismantle it remember to note down the number of turns on the the mixture, idle, etc screws for reinstallation.

 

cjchaps

Diamond Member
Jul 24, 2000
3,013
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We checked the lines, and they seem to be in good shape, so I don't think that's a problem...

Originally posted by: tnitsuj
Did you check the fuel lines? I would bet they are gunked up and useless after all that time. Do a fuel pressure test.

 

Armitage

Banned
Feb 23, 2001
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Those "shafts" in the carb are probably the jets. Replace them, as you likely won't get them completely cleaned out, or will damage them in the process.

 

tnitsuj

Diamond Member
May 22, 2003
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Originally posted by: cjchaps
We checked the lines, and they seem to be in good shape, so I don't think that's a problem...

Originally posted by: tnitsuj
Did you check the fuel lines? I would bet they are gunked up and useless after all that time. Do a fuel pressure test.

Remove the fuel line from the carb and hold the fuel valve open. Does gas trickle out of it?
 

Quixfire

Diamond Member
Jul 31, 2001
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OK, this is a two stroke engine and requires a vacuum tight crankcase to run. Sounds like your crankshaft shaft seals are leaking. Start the engine, keep it running, and spray carb cleaner around the shaft seals, you may have to remove covers for access. If the engine rpms go up or if the engine smooths out then there is your problem.

Good Luck.
 

DurocShark

Lifer
Apr 18, 2001
15,708
5
56
Fuel filter, carb rebuild, spark plugs, etc. In that order.

You can add a bunch of carb cleaner to the fuel tank and see if that gets past any clogged jets in the carb, but I kinda doubt it will. Rebuild.
 

cjchaps

Diamond Member
Jul 24, 2000
3,013
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81
I did take everything apart and soaked the different parts... Then I put everything togather, but didn't really pay to much attention to the original number of turns. I guess that is something to try and adjust.

Originally posted by: tnitsuj
Also, when you cleaned the carb did you actually take it apart and soak all the parts in carb cleaner, or did you just spray everything down? If you do dismantle it remember to note down the number of turns on the the mixture, idle, etc screws for reinstallation.

 

cjchaps

Diamond Member
Jul 24, 2000
3,013
1
81
Yea, gas comes out of the fuel lines if we disconnect them.

Originally posted by: tnitsuj
Originally posted by: cjchaps
We checked the lines, and they seem to be in good shape, so I don't think that's a problem...

Originally posted by: tnitsuj
Did you check the fuel lines? I would bet they are gunked up and useless after all that time. Do a fuel pressure test.

Remove the fuel line from the carb and hold the fuel valve open. Does gas trickle out of it?

 

cjchaps

Diamond Member
Jul 24, 2000
3,013
1
81
Actually, it's a 4 stroke engine... I'll run what you said by motorhead friend, because I'm not sure what you mean exactly.

Originally posted by: Quixfire
OK, this is a two stroke engine and requires a vacuum tight crankcase to run. Sounds like your crankshaft shaft seals are leaking. Start the engine, keep it running, and spray carb cleaner around the shaft seals, you may have to remove covers for access. If the engine rpms go up or if the engine smooths out then there is your problem.

Good Luck.

 

cjchaps

Diamond Member
Jul 24, 2000
3,013
1
81
That's actually what I was thinking... I didn't know if I cleaned them out good or not. I'll give a local dealership a call and see if I can get some new ones.

Originally posted by: ergeorge
Those "shafts" in the carb are probably the jets. Replace them, as you likely won't get them completely cleaned out, or will damage them in the process.

 

tnitsuj

Diamond Member
May 22, 2003
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Originally posted by: cjchaps
Actually, it's a 4 stroke engine... I'll run what you said by motorhead friend, because I'm not sure what you mean exactly.

Originally posted by: Quixfire
OK, this is a two stroke engine and requires a vacuum tight crankcase to run. Sounds like your crankshaft shaft seals are leaking. Start the engine, keep it running, and spray carb cleaner around the shaft seals, you may have to remove covers for access. If the engine rpms go up or if the engine smooths out then there is your problem.

Good Luck.

Yeah those 80 series are 4 stroke.
 

tnitsuj

Diamond Member
May 22, 2003
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Originally posted by: cjchaps
That's actually what I was thinking... I didn't know if I cleaned them out good or not. I'll give a local dealership a call and see if I can get some new ones.

Originally posted by: ergeorge
Those "shafts" in the carb are probably the jets. Replace them, as you likely won't get them completely cleaned out, or will damage them in the process.

You could probably get a whole new carb or rebuild kit pretty cheap online.

A few other questions though...did you change the fuel filter? Did you inspect the gas tank for rust?
 

Armitage

Banned
Feb 23, 2001
8,086
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heh ... my moped story.
My wife has an old moped ... probably mid 80's also, don't recall. It sat in storage for years also, but didn't fair as well as yours. She wanted me to have a look at it & try to fix it. A quick look showed a real mess. Mice had nested under the seat and chewed through every piece of wire in it. and worse, the engine was actually siezed ... couldn't kick it over.

So I was busy and didn't want to deal with it ... looked to be a lost cause frankly. So I put her off on it a few times.

Then I get home from work one day, the garage door is open, and the moped is sitting there in pieces. Lots of pieces. She just started taking things apart! Whatever she could fit a wrench or screwdriver on. The cylinder head & cylinder were off, the piston was hanging out of the crankcase like a dogs tongue, the carb was off of that, and she was preparing to split the crankcase (which would've dumped oil all over the floor) when I got there. :(

Ok, so I got the hint and started working on it. The carb was completely shot ... gas had solidified in it, and eroded some of the Al ... nothing to do for it. The cylinder was pretty rusted & pitted. So I got a price for a new carb, piston, and boring out the cylinder ... was about $400 IIRC. So I fiigured that's the end of that ... I mean, aside from the engine & electrical problems the whole scooter is in pretty rough shape ... not a gem in the rough. But no ... she wants it fixed, and comes up with the $400 for the parts & machining.

So, now I'm stuck with putting this engine back together without the benefit of seeing how it came apart, or any kind of manual (guy at the shop would let me look through his a little). Avfter much cursing, & knuckle scraping, I actually got it together. Mucked around and patched the wiring together also. And it started right up! Well, after kicking it for 15 minutes with the gas stopcock closed, it started right up
rolleye.gif
I was pretty proud of myself :D

So where is the scooter now?? Still in the garage ... I start it up every few months, but that's all the use it's seen
rolleye.gif
rolleye.gif


 

cjchaps

Diamond Member
Jul 24, 2000
3,013
1
81
I didn't change the fuel filter... I don't know where it is actually. Also, the gas tank looked good. I looked inside and didn't see any rust.

Originally posted by: tnitsuj
Originally posted by: cjchaps
That's actually what I was thinking... I didn't know if I cleaned them out good or not. I'll give a local dealership a call and see if I can get some new ones.

Originally posted by: ergeorge
Those "shafts" in the carb are probably the jets. Replace them, as you likely won't get them completely cleaned out, or will damage them in the process.

You could probably get a whole new carb or rebuild kit pretty cheap online.

A few other questions though...did you change the fuel filter? Did you inspect the gas tank for rust?

 

Quixfire

Diamond Member
Jul 31, 2001
6,892
0
0
Originally posted by: tnitsuj
Originally posted by: cjchaps
Actually, it's a 4 stroke engine... I'll run what you said by motorhead friend, because I'm not sure what you mean exactly.

Originally posted by: Quixfire
OK, this is a two stroke engine and requires a vacuum tight crankcase to run. Sounds like your crankshaft shaft seals are leaking. Start the engine, keep it running, and spray carb cleaner around the shaft seals, you may have to remove covers for access. If the engine rpms go up or if the engine smooths out then there is your problem.

Good Luck.

Yeah those 80 series are 4 stroke.
My mistake, I thought you type 50cc not 80cc.