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Exhaust set up

Technical help for Series one, two and three Lambrettas. Models include the Li, Li Special, TV, SX, GP, Serveta and API/SIL models

Exhaust set up

Postby Geocamper » Mon Oct 16, 2017 5:21 pm

Running a standard tv175 with the original MB21 BS5 carb.
The question I have is,
Could I fit a BGM V4 exhaust and a SH1/20 carburettor onto this engine with positive effect? Would the engine be underpowered for this set up?
Engine and casing has recently been overhauled with new piston,Head and bearings. It pulls really well but I feel it's being held back by the original set up.
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Re: Exhaust set up

Postby Raveydavey » Mon Oct 16, 2017 5:29 pm

It would likely improve performance. You'd need to re-jet your carb though. It'll probably run leaner
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