Search found 5 matches

by mini_man
Thu Jun 10, 2010 10:17 pm
Forum: Technical Help
Topic: '84 Honda NN50MD (Gyro) Oil leaks into crank
Replies: 15
Views: 17111

Re: '84 Honda NN50MD (Gyro) Oil leaks into crank

I seen those listed, that you mentioned.

It's hard to get excited about some of these guys on ebay, who are posting junk at high prices.

I'm going to do you little test, so I can quantify the leak. At least I would have a base line for future comparison.

Have you dissected any of those faulty ...
by mini_man
Wed Jun 09, 2010 10:48 pm
Forum: Technical Help
Topic: '84 Honda NN50MD (Gyro) Oil leaks into crank
Replies: 15
Views: 17111

Re: '84 Honda NN50MD (Gyro) Oil leaks into crank

That looks like an S model. Looked up the fiche, same pn...


How long did that take to accumulate?

Do you have any spares to offer? Any suggestions of a source?

THanks
by mini_man
Wed Jun 09, 2010 6:12 pm
Forum: Scooter Showcase
Topic: 1984 Honda Gyro Build
Replies: 48
Views: 33324

Re: 1984 Honda Gyro Build

Lots of white smoke (?)

That's a bunch of oil sitting in crank. It will blow out after a good run!

(we know it ain't water!)

After it blows out, it will burn clean. The question I have, is if it returns after sitting for a week or two.... If it does, welcome to my world. Mine has always done it ...
by mini_man
Wed Jun 09, 2010 4:45 pm
Forum: Scooter Showcase
Topic: 1984 Honda Gyro Build
Replies: 48
Views: 33324

Re: 1984 Honda Gyro Build

I noticed that the air cooling shroud is missing off you cylinder head.

If you look at the parts diagram, you'll see that there is an air scoop that picks up air, runs it through the fan, and then the air is forced over the cylinder.

I've been running a nn50md for 15 years, and I recently tore it ...
by mini_man
Wed Jun 09, 2010 2:20 pm
Forum: Technical Help
Topic: '84 Honda NN50MD (Gyro) Oil leaks into crank
Replies: 15
Views: 17111

'84 Honda NN50MD (Gyro) Oil leaks into crank

I'm new to your forum. Glad to see there is an army of folks keeping these old scooters alive!

I've owned my Gryo for the past 15 years. I've always suspected that the there is an issue with the auto injector oil system, because when the bike sits for extended periods, starting is difficult, having ...