Technical help for Series one, two and three Lambrettas. Models include the Li, Li Special, TV, SX, GP, Serveta and API/SIL models
by kennystag » Sat Nov 07, 2015 5:10 pm
Hi All,
I put a Compression tester on my GP150 and it reads 90 PSI which I think is very good, anybody know what the PSI should be on a standard engine with about 6,000 km.
Cheers
Stag

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kennystag
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by Captain Pugwash » Sat Nov 07, 2015 9:53 pm
It depends a little on how fast you can kick over the engine But I would expect 90psi to be ok. I've had higher readings.
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Captain Pugwash
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by Raveydavey » Sat Nov 07, 2015 11:16 pm
Stick it in 2nd and push it to turn the engine over rather than kicking it. 120 psi is a healthy compression
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Raveydavey
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