I bought a 1985 safari 447 the guy gave me a carb that he said would work for it. But after looking up the info on it, it will not work plus the carb is trashed. The manual says it should be a Mikuni VM34-310. I can not find that carb anywhere and the closest I can find is VM34-275. Can I use that 275 carb and just change the jets and needles? What jets and needles do I need to buy if that will work? Any help would be great TYA