Re: Honda NA50 Crank Seals.

> Pacer Racer Wrote:

> -------------------------------------------------------

> Youre not looking very hard.

>

> As far as it purpose:

>

> Helical cut gears have axial loads.

>

> The wave washer cushions that load to prevent the gear from slapping the

> case.

I am too! I'm just slow. That's why mopeds. Slow like me. But I always get there!

I found a NOS one on eBay, and it looks like Cmsnl.com has em. It was easy to find once I had a part number. I had read that article in the wiki a week ago, right after I got the bike, but couldn't remember where I had read it. It was before I knew I had any transmission issues, and was just generally reading up on the bike. But nonetheless, I'm headed the right direction now. Thanks!

Re: Honda NA50 Crank Seals.

> As far as it purpose:

>

> Helical cut gears have axial loads.

>

> The wave washer cushions that load to prevent the gear from slapping the

> case.

Thank you for taking the time to explain this to me. That makes sense.

Re: Honda NA50 Crank Seals.

And look at the shipping closely too, especially on ebay.

Some of them fools want $25 shipping for a $2 washer. Yeah, thats shady cause they hope you wont catch it until check out and have to pay.

Re: Honda NA50 Crank Seals.

> Pacer Racer Wrote:

> -------------------------------------------------------

> And look at the shipping closely too, especially on ebay.

>

> Some of them fools want $25 shipping for a $2 washer. Yeah, thats shady

> cause they hope you wont catch it until check out and have to pay.

Yeah I know. The one I found is around two or three bucks for the washer and like six bucks shipping. Still under 10 bucks so it’s worth it I reckon. I’ve never dealt with CMSNL before. How are they deal with?

Re: Honda NA50 Crank Seals.

You could run it without, but as mentioned the gears push side to side as the load changes and it will allow some play which will cause clunking as you accelerate and decelerate. The clicking you are hearing may be the gears popping back and forth as the load shifts.

Re: Honda NA50 Crank Seals.

> Seth B Wrote:

> -------------------------------------------------------

> Upon closer inspection, this is what I found. I found the missing tooth.

> I'm going to put it under my pillow, and hope the tooth fairy comes and

> brings me a new Tomos.

>

well, the tooth fairy didn't bring me a new Tomos, but I did score a broke down ol Sears Free Spirit Deluxe for $100!

Re: Honda NA50 Crank Seals.

> Seth B Wrote:

> -------------------------------------------------------

> well, the tooth fairy didn't bring me a new Tomos, but I did score a

> broke down ol Sears Free Spirit Deluxe for $100!

Pics , pics ...

Re: Honda NA50 Crank Seals.

> P D Wrote:

> -------------------------------------------------------

> > Seth B Wrote:

>

> > -------------------------------------------------------

>

> > well, the tooth fairy didn't bring me a new Tomos, but I did score a

>

> > broke down ol Sears Free Spirit Deluxe for $100!

>

> Pics , pics ...

A822CACE-B3DB-455E-9FB3-DF0D9218C79C.jpeg
F9DFF6F6-8872-47DD-BBBD-17626B03043D.jpeg

Re: Honda NA50 Crank Seals.

Looks like ya done good for a hundred bucks . ;)

Re: Honda NA50 Crank Seals.

Got my wave washer in the mail today and some cool stickers too. Guess I’ll slap her back together tomorrow.

image.jpg

Re: Honda NA50 Crank Seals.

giphy.gif

Re: Honda NA50 Crank Seals.

^^Nice wave!

Re: Honda NA50 Crank Seals.

It's back together. Now, since it sat while I waited for parts, it leaked a puddle of 2T oil. The pump let about a cup of oil fill the bottom of the case. I pulled the exhaust, and dumped it out. Screw that auto oiler. It sucks! I dumped all the oil I could out of the case and put it back together. Smoked like a bitch for a while! Cleared up now, but after about 10 minutes of running, it dies and won't start back for a few minutes. Then it starts like nothing ever happened. I pulled the plug, expecting it to be wet, but no- it's white, and running lean & hot. Like it's getting too much air. I plugged the oil inlet on the carb with a vacuum cap, so that's not it. I sprayed looking for air leaks, but nada. Idles perfect. I'll try readjusting air/ fuel mix per the book and see what that does. Any other thoughts?

Re: Honda NA50 Crank Seals.

I Forgot to vent the gas cap. Silly Honda.

Re: Honda NA50 Crank Seals.

Mine does that when it sits for long periods. Not to that extreme though. Oil is leaking past injector for sure. Too much oil will create an a/f lean condition too.

Pinch off oil line when not running until it can be corrected.

Re: Honda NA50 Crank Seals.

> Pacer Racer Wrote:

> -------------------------------------------------------

> Mine does that when it sits for long periods. Not to that extreme

> though. Oil is leaking past injector for sure. Too much oil will create

> an a/f lean condition too.

>

> Pinch off oil line when not running until it can be corrected.

It literally leaked out 12 ounces of oil. I had a clean sheet pan under it, so I recovered about 4 ounces, but a solid cup ended up in the exhaust or dumped out & nasty. That's leaking a lot. I drained the oil tank, and I'm just gonna run premix, I think.

Now that I opened the tank vent, it's running fine. I just forgot it had that feature.

Re: Honda NA50 Crank Seals.

Come to think of it, I believe I replaced an o ring in the case that the pump shaft mates to when I rebuilt mine. Could be why mine is leaking much less.

Re: Honda NA50 Crank Seals.

I may pull the pump out this winter and investigate.

Probably not. It would be nice to have operational. But priorities.

Re: Honda NA50 Crank Seals.

On the bright side, I put in a new battery and all the lights work. Horn too.

Re: Honda NA50 Crank Seals.

What kind of oil was in the tank? The injector pump will leak non injector approved synthetic through easily. (edited)

Re: Honda NA50 Crank Seals.

> DPC Ryan Wrote:

> -------------------------------------------------------

> What kind of oil was in the tank? The injector pump will leak non

> injector approved synthetic through easily.

Lucas

image.jpg

Re: Honda NA50 Crank Seals.

Get a bottle of the cheap stuff and see if it leaks.

Re: Honda NA50 Crank Seals.

> Seth B Wrote:

> -------------------------------------------------------

> > DPC Ryan Wrote:

>

> > -------------------------------------------------------

>

> > What kind of oil was in the tank? The injector pump will leak non

>

> > injector approved synthetic through easily.

>

> Lucas

> >

That's ^ exactly what I run in the FA50 . Completely stock with oil pump working as it should .

Re: Honda NA50 Crank Seals.

I will add,

That 2 stroke oil designed for injectors does seem to work better overall. Meaning that the engine does run and start easier and smokes less. Honda still makes it and I still use it after trying the Lucas oil too.

My veiw on the matter is that Lucas was designed to be mixed at higher ratios like(50:1) and the old 70s injectors cant compensate for that as they are on a fixed setting.

The honda oil does seem to burn cleaner than weed wacker oil too.

Ive tried an assortment of oils with my express injector and the motor/injector does like the honda injector oil best. Thats my experience.

1539554902787749216905557612543.jpg

(edited)

Re: Honda NA50 Crank Seals.

Richard Veloz /

Check the wave washer, probably snapped,causing binding issue with wheel sprocket or any other washer that might be missing...

image.jpg
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