I'm new to this forum and glad i found it. I need some serious help. I'm swaping out a motor on my dads 1998 sportsman 500 for him. Honestly im not that knowledged about wheelers. I figured just an engine swap wouldn't be too bad. the engine i was told would swap just fine doesn't have the big oil breather line next to the oil inlet/outlet lines on the exhaust side of the motor rather it has a hose attachment on the carb side on the crankcase with a pin sized hole in the top of it. Is This the oil breath line on this motor? It starts and idles great, but when i put some throttle to it it cuts out and backfires. oil comes flying out of this hose bib. My question is what to do with this line? should i plug it? should i run it to the airbox like on the old motor and mine(204)? Also there is quite a lot of oil that sprays out. Is this normal? Just not sure what to do and if this is causing it to cut out. Any help guys?

 

i'm pretty sure its the breather