Here we have a nice used pair of intake adapters for the 72-73 GP 643's, can also be used with the 73 SR 643 engine, just need to bore the hole out to match 50mm carbs. Shipping will be $7 in the US but more to ship internationally. Thanks

Will gladly combine shipping on multiple auctions won.

I also have many other yamaha snowmobile parts listed in my e-bay store, if you're looking for anything specific send me a message. 

SRX 340 SRX 440 SSR Thunder-Jet T-Jet Sno Jet Mercury Sno Twister Jim Adema Trapp SL GP SW PR SR SS 246 292 338 433 396 643 650 Free Air Blizzard Keihin Kehin Mikuni Carb Carburetor Vintage snowmobile memorabilia snow goer sno track race rally oval racing TNT Arctic Cat Z EXT KING KAT Polaris centurian RX-L RXL TX starfire butterfly rare SL 350 SL 351