I have a Nissan 90 hp 1993 motor real strong have not had any problems until last weekend. We were at the lake it ran fine in the morning with 5 people on the pontoon. That afternoon went I went to take off it fell on its face sounding like it was loading up.
We had it at lake Weatherford two weeks prior and we putted around didn't really push it so didn't have a problem then.
Got it home put the muffs on and started it it was peeing just fine then it started to back fire and pop blowing smoke out. It is oil injected. It sounded like I lost a cylinder so I shut it off unplugged top plug and it would not start. Unplugged the middle one and it would start and sounded the same with the back firing. I unplugged the 3 plug and it would not start. So I thought well might be a coil pack so I have an identical motor that came with the boat when I bought it so I pulled the #2 coil pack and plug and placed it on the motor still not change. So Sat I pulled all three carbs and tore them completely down did a good cleaning put them back together ran ok for a min or so then starting popping and backfiring again. I'm at a lose. I know my gas is from last year but with Staybilt in the fuel.
HELP ANYONE. I mean it is just a 3 cyl 2 stoke engine it cant be that hard to fix. CAN IT?
We had it at lake Weatherford two weeks prior and we putted around didn't really push it so didn't have a problem then.
Got it home put the muffs on and started it it was peeing just fine then it started to back fire and pop blowing smoke out. It is oil injected. It sounded like I lost a cylinder so I shut it off unplugged top plug and it would not start. Unplugged the middle one and it would start and sounded the same with the back firing. I unplugged the 3 plug and it would not start. So I thought well might be a coil pack so I have an identical motor that came with the boat when I bought it so I pulled the #2 coil pack and plug and placed it on the motor still not change. So Sat I pulled all three carbs and tore them completely down did a good cleaning put them back together ran ok for a min or so then starting popping and backfiring again. I'm at a lose. I know my gas is from last year but with Staybilt in the fuel.
HELP ANYONE. I mean it is just a 3 cyl 2 stoke engine it cant be that hard to fix. CAN IT?
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