1975TNT

i own a 1975 skiddoo tnt. it has a 440 engine but has trouble running. I prime it three times to start and usually first pull starts it. I go ridding for about 10 min. and the thing starts to bog down on me to the point where it stalls completely. i can prime while it is about to die and manage to keep it running a little longer until it dies. I need help i have no clue i am pretty sure it is lack of fuel but don't know if it is carb or fuel pump. thanks for your help.

Fendrguy

Have you check for any crimp or bad fuel lines?
that motor have a TILLESON HR carb or a MIKUNI?
If its a tilleson you need to change the diaghrams on the bottom of the carb. on these carbs that is the fuel pump.
If your running a mikuni carb it needs a good cleaning, if that doesnt help, change (or rebuild if you can) the fuel pump.

try those and let us know whats up.