Large or Small Cone

FREE tuning and maintenance info, plus links to our original tuning pages that started it all off.
dippyrider
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Joined: Sat Mar 07, 2020 4:59 pm
Main scooter: Lambretta LI150
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I have a 1960 LI150 Series 2, how do I know if it is a large or small cone crankshaft?
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garry inglis
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Joined: Tue Jul 21, 2015 8:04 pm
Main scooter: ts1 230 and rb200
Location: darlington
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All li are small cone only gp is large cone or thicker taper

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hendy
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Main scooter: lambretta li 125
Location: Tyne and Wear
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garry inglis wrote: Sat Apr 18, 2020 8:07 pm All li are small cone only gp is large cone or thicker taper

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Only problem is we don't know if anyone has changed the crank.

Have a look at this.

http://www.scooterrestorations.com/lamb ... mm-conrod/
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garry inglis
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I've got a couple of old li cranks and some new gp I'll measure the shaft in morning and let you no

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garry inglis
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Main scooter: ts1 230 and rb200
Location: darlington
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You could also measure the taper hole on the flywheel

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garry inglis
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I've had a measure 1st pic is new gp 2nd pic is li150 3rd pic is original Dansi gpImageImageImage

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YAMLAM
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where does the terminology small cone ,large cone come from ?
been playing with lammies since 1980 and only ever knew it as GP or Li taper .
win or lose have a booze
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