Search found 18 matches

by Midwinter
Thu Apr 30, 2009 7:10 pm
Forum: Technical Help
Topic: Oil Pump Set Plate?
Replies: 2
Views: 1241

Oil Pump Set Plate?

Hi all.

Yesterday, while coming home from work, my '85 Aero suddenly died and wouldn't crank. I pushed it home and took it apart to find that the oil pump was DANGLING OUT OF THE CRANK CASE.

Seriously.

It seems that someone, at some point (not me) removed the oil pump set plate and never put it ...
by Midwinter
Fri May 25, 2007 11:20 am
Forum: Technical Help
Topic: '85 Aero Mysteries...
Replies: 9
Views: 4006

Seems to be fixed├óÔé¼ÔÇØit cranked right up this morning and ran fine.

Thanks, W/C. Your post got me started poking around air the reed valve images on one of the parts distributors online, and that's where I noticed the insulator was facing the wrong way.
by Midwinter
Thu May 24, 2007 11:31 pm
Forum: Technical Help
Topic: '85 Aero Mysteries...
Replies: 9
Views: 4006

Well I'll be. Flipped that gasket and now it seems to crank right up when cold. Guess I'll know more tomorrow morning.
by Midwinter
Thu May 24, 2007 2:21 am
Forum: Technical Help
Topic: '85 Aero Mysteries...
Replies: 9
Views: 4006

OK. I noticed that the plastic heat gasket thing between the intake and the carb was actually on backwards (O-ring towards the carb). Managed to strip the carb mount re-installing it, so I won't be able to test it until I can tap it out and get a bolt in there was a snug seal.

Anywhere else I ...
by Midwinter
Thu May 24, 2007 1:54 am
Forum: Technical Help
Topic: '85 Aero Mysteries...
Replies: 9
Views: 4006

if you cover the carb and the bike starts you got an intake leak, could be anything from bad seals to intake gaskets etc
Try cover the carb with the engine running and spray wd40 or carb cleaner and even brake clean all around where the gaskets and seals are, if the bike revs up or dies- depending ...
by Midwinter
Thu May 24, 2007 1:48 am
Forum: Technical Help
Topic: Can't get Spree to Start
Replies: 6
Views: 3908

Try a bit of oil in the sparkplug hole and see what happens.
by Midwinter
Tue May 15, 2007 12:44 am
Forum: Technical Help
Topic: '85 Aero Mysteries...
Replies: 9
Views: 4006

Just a quick note to say that I covered the carb air intake with my hand and the bike fired right up and remained running. I've got a carb gasket kit on the way as well as a new cylinder gasket. Am I right in thinking that the bike starting under these conditions points to too much air in the carb ...
by Midwinter
Sat May 12, 2007 9:11 pm
Forum: Technical Help
Topic: '85 Aero Mysteries...
Replies: 9
Views: 4006

The rings *should* be the correct ones for this scoot, although the kid at the Honda shop did some kind of crazy 3-card-monty with them and a set of rings for an '86. But the '86 rings didn't work (top one wouldn't even seat; bottom one seemed to fit fine). I've got the correct rings on there, now ...
by Midwinter
Sat May 12, 2007 7:01 pm
Forum: Technical Help
Topic: '85 Aero Mysteries...
Replies: 9
Views: 4006

'85 Aero Mysteries...

Hi all.

My '85 Aero is still having start difficulties. I've replaced the piston rings and head gasket and *still* have compression at 90psi. Reed valve looks fine.

I'm concerned, though, that the compression reading isn't correct. I have plenty of power (unless it's a steep hill, then it gets ...
by Midwinter
Thu Apr 26, 2007 11:03 pm
Forum: Technical Help
Topic: Help with Honda Aero 50 Starting Difficulties?
Replies: 14
Views: 5079

Check the compression yourself with a tester... I doubt it's a compression issue. I think it's a carb issue.

That's my next step.

Added an in-line fuel filter today, and in the process learned a couple of things:

1) This scooter has had a piece of vacuum line instead of fuel line for the ...
by Midwinter
Thu Apr 26, 2007 1:02 pm
Forum: Technical Help
Topic: Help with Honda Aero 50 Starting Difficulties?
Replies: 14
Views: 5079

Well this little thing is turning out to be a mystery.

Yesterday morning, the thing would not start, even with starter fluid. Then, after sitting idle for 8.5 hours, it cranked on the first hit of the starter.

So. Starts in the afternoons but not in the mornings.

Carb is running great (after I ...
by Midwinter
Mon Apr 23, 2007 7:55 pm
Forum: Technical Help
Topic: Help with Honda Aero 50 Starting Difficulties?
Replies: 14
Views: 5079

Play with your idle settings... will it keep running from cold if you goose the throttle?

OK. With a new coil and plug, it cranked right up after being idle all night and day. Old plug was black and sludgy. Took it for a spin and it died while idling, but otherwise ran fine. Cranks up with a ...
by Midwinter
Mon Apr 23, 2007 11:11 am
Forum: Technical Help
Topic: Help with Honda Aero 50 Starting Difficulties?
Replies: 14
Views: 5079

noiseguy wrote:Play with your idle settings... will it keep running from cold if you goose the throttle?
If I can get it to turn over and stay running for more than 5 seconds, yes. I also have it idling a *little* high.
by Midwinter
Mon Apr 23, 2007 12:08 am
Forum: Technical Help
Topic: Help with Honda Aero 50 Starting Difficulties?
Replies: 14
Views: 5079

The exh port could be plugged, but not likely.

Does it cold start now?

All the mods done to the aircleaner may actually be making it harder to start. Doing that to a Spree would prevent it from starting.

I took the muffler off and looked at the exhaust port. It's got some sludge, but it wasn't ...
by Midwinter
Sun Apr 22, 2007 8:00 pm
Forum: Technical Help
Topic: Help with Honda Aero 50 Starting Difficulties?
Replies: 14
Views: 5079

The passages around the bystarter sometimes clog, which keeps it from working.

I've taken the carb apart several times and have given it a good going over with carb cleaner. I know the carb is getting gas. I pulled the bystarter and checked the resistance, which was where it should be. I've hosed ...