lambretta 290 rotax

Anything related to Lambretta or Vespa Scooters fitted with LC, Motorcycle and/or Auto engines!
czeckson
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Posts: 32
Joined: Tue Nov 05, 2013 5:40 pm
Main scooter: Lambretta SX150
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Mon Feb 18, 2019 3:45 pm

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holty
registered user
Posts: 848
Joined: Wed Jul 15, 2015 11:52 pm
ebay user ID: amholt123
Main scooter: lambretta gp
Location: east yorkshire
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Mon Feb 18, 2019 5:55 pm

garry inglis wrote:
Tue Feb 05, 2019 6:52 pm
whats the rubber cap with the spring clip steve is that for coolant
its the rave valve garry, works off exhaust pressure which lifts the valve up and down to alter the exhaust port timing, gives more torque at low revs and more power at high revs, a bit like a turbo on a car, first test ride was Saturday and its very very quick, did a power wheelie in second gear without even trying, its got way more power than it had before, and that was 35bhp, I still have the bigger carb to fit as well, that will got on when I get martin at chiselspeed to dyno it for me, I just want to get some miles on it first.
Image51960891_2311882732387243_4544355083143348224_n by stephen holt, on Flickr

holty
registered user
Posts: 848
Joined: Wed Jul 15, 2015 11:52 pm
ebay user ID: amholt123
Main scooter: lambretta gp
Location: east yorkshire
Contact:

Mon Feb 18, 2019 5:57 pm


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