GMT-Master II

Marsoni

M251S

$10025.00

Get it in 3 business days with 1 day shipping. Friday, May 29

GMT-Master IIOyster, 40 mm, Oystersteel and Everose gold Reference 126711CHNR Calibre 3285, Manufacture Rolex Model case Oyster, 40 mm, Oystersteel and Everose gold Power reserve Approximately 70 hours Bezel Bidirectional rotatable 24 hour graduated bezel. Two colour brown and black Cerachrom insert in ceramic, moulded numerals and graduations Bracelet Oyster, three piece solid links Water resistance Waterproof to 100 metres 330 feet Dial Black Movement Perpetual,

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The housing is 95% identical. Float valve seat is smaller than mercury/quicksilver. The carb I received was stuck wide open. Had to completely pull it apart to fix the throttle. Then the choke didn’t work correctly. So I ended up putting this housing on with all my old mercury carb parts inside. All I needed was a new float valve but they are back ordered indefinitely. So this worked because the housing is correct but that’s about it. Internals were plastic. Not metal. Jury is still out on the jet size. I’ll update if it floods the motor at speed. Seems to be running very rich. If you’re looking for easy, I’d buy the quicksilver that’s tuned for the motor already. The carb I received idled too fast and even if the throttle wasn’t stuck open it wouldn’t have run well with a racing choke (screams air leak because of poor quality)

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Reviewed in the United States on April 3, 2024

Verified Purchase

Joe Mugavero

Pawtucket, US

★★★★★ 1

Throttle pin defective

This carb fits my tohatsu 3.5 hp but the throttle pin is defective. The only way to regulate it running wide open is to choke it out.

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Reviewed in the United States on December 4, 2024