Simple fix.......or so I thought!

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Juan
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Tue Nov 29, 2016 8:40 pm

I'd be looking at worn rings myself.

shaunmc
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Tue Nov 29, 2016 8:51 pm

Good point, I had similar trouble on my GP on the way to Cleethorpes turned out my rings had snapped.

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ArmandTanzarian
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Tue Nov 29, 2016 9:05 pm

Juan wrote:I'd be looking at worn rings myself.

Now you mention it, mine went the same way when the rings were gummed up. Certainly worth a look.
Meus Lambretta est non infractus. Is est quietus.

fraserp200e
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Thu Dec 01, 2016 2:34 pm

I was thinking (dreading) the same thing myself but wanted to check everything else before I take the top end off.............my only question is with the rings gummed up or worn will you still get normal / near normal compression when kicking it over?

I'm guessing this would explain why it runs normally when hot?
1983 Vespa PX125
1984 MotoVespa P200E
1988 MotoVespa TX200

Mr G in NYC
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Thu Dec 01, 2016 3:02 pm

Yup worn rings as stated above ......G

fraserp200e
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Thu Dec 01, 2016 3:15 pm

Oh well, off with the top end for a look then!! I know what I'll be doing this weekend....
1983 Vespa PX125
1984 MotoVespa P200E
1988 MotoVespa TX200

fraserp200e
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Mon Mar 27, 2017 12:46 pm

Finally got round to doing this - as mentioned above, the rings were well and trully gummed into the piston. Piston was pretty badly scored as well (the barrel looked fine though!). It's the first time I've had the top end off this one so I don't know if it was an old piston or not.

Back on the road with a HB 208 top end from another one of my scooters
1983 Vespa PX125
1984 MotoVespa P200E
1988 MotoVespa TX200

woody
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Mon Mar 27, 2017 1:22 pm

try changing the cdi for one you know starts a scooter easily

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