YamahaGuy-1
New member
Was riding with my neighbor last night and his 94 vmax 600 starting running like it had fouled a plug. We stopped and he put in new plugs and it still was running funny. It will idle fine, but when he gets on it it sounds funny like it is running on one cylinder, but both jugs are hot and both sides of Y-pipe appear to fell the same temp? The thing is smoking like it is running on 1 cylinder and it was going thru the gas like there was no tomorrow. I thought maybe water frozen in a fuel line or the pump but he says he has put lots of drygas thru it this year, not that it couldn't still be that but I am getting stumped on this one. He still rode with us almost 40 miles last night so it is not like it has no power, but he says its got about half or less than normal and will not go over 50mph since it started this. Any ideas on things to check???