So I have an older fourtrax 300, I’m not even sure of the year. I would say 90’s, I use it for work every day. Well it wouldn’t idle so I cleaned the carb somewhat, with the help of my "mechanic" buddies. They didn’t wanna mess with it much and said it was good enough. Still wouldn’t idle so they told me it was the valves? They’re good mechanics just kinda lazy, so I figured ok cool. They didn’t wanna help so with the help of YouTube I pieced things together and tried to adjust the valves. My question is, how do I tell when the cam Lobes are facing straight down???

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