Starter Drive Gear Does Not Fit

[vacationer]

I bought a "universal parts starter drive gear" from partsforscooters.com, but it seems maybe a little too big to fit with the starter gear (the larger one that goes behind the variator). The teeth seem to mesh just fine, but I think the diameter of the drive gear itself is too wide.




Do yall have any advice on how to deal with this?

[geoffh]

Compare the old with the new it,s either right or wrong there,s no wriggle room.

Geoff

[vacationer]

geoffh Don't have the old. I'll probably buy one from a different site.

[aeroxbud]

Have you got the bearing that goes inside the drive gear? That takes up the space.

[vacationer]

aeroxbud As far as I can tell, there is no bearing that belongs there. There's a small cylindrical piece that sticks out from the back of the transmission case and the drive gear slides onto that pretty cleanly. And in the case that I am missing a bearing, wouldn't that only exacerbate my problem?

[aeroxbud]

Can you take a few pictures of it. When you said "the diameter of the drive gear itself is too wide" I thought you meant the year was too wide where it located into the engine. There should be a bearing there it's very thin. It's number two in this diagram www.partsforscooters.com/scooter-parts-diagrams/50cc-2-stroke-1E40QMB-50cc-Scooter-Parts-Diagrams/50cc-2-stroke-1E40QMB-Starter-Motor-Kick-Starter-Parts_2?show=100&display=list&page=1
That looks different to the one I've linked to in the link. Looks like a Yamaha one possibly?

[vacationer]

Oh I'm talking about what's #5 on that diagram. I have the #1/2/3 that I believe are stock, but the #5 I just bought does not agree with the #1. (I try to use the "official" names for these parts when I post, but I don't think it does me any good when they all sound like they could be referring to the same exact thing)

[aeroxbud]

Would it be worth buying the starter clutch assembly? That's $40, but should match up with the gear you purchased.

[vacationer]

aeroxbud Is this the one to which you refer?

www.partsforscooters.com/155-11-101-Octane-Minarelli-Starter-Clutch

[aeroxbud]

That looks like it. It's different to the one you have already.

[vacationer]

aeroxbud You think I could get away with buying the two pieces without including the one with the four holes in it and save myself $20? Or should I be safe and get the whole thing?

[aeroxbud]

This one? www.partsforscooters.com/161-44
Your one way clutch should fit to it. And it's different to the one you have that doesn't mesh. So I would give it a go.

[vacationer]

aeroxbud Sorry, #4 on the diagram is the one that I'd like to avoid purchasing. They don't appear to sell it individually, otherwise I'd link to its particular page for clarity. So I would only buy the part you linked above as well as the needle bearing (#1 and #2). But if there's a chance that my #4 doesn't fit with the new #1 and #2, I'd just be safe and buy all three together via the starter clutch assembly.

[aeroxbud]

This is all three together. www.partsforscooters.com/Clutch_plate-2_50cc-2