Polaris 550 won't start!

snowballfox

New member
Last time out, I started the 550 and it ran for about one minute and died. Many helped trying to start but nothing. Got in the garage today, so put a little gas in each cylinder and it took off, ran a couple of seconds and died so I assume no gas. Took the air box off, unhooked the lines to the carbs, pulled the rope and fuel pump is pumping gas. I am stumped! Thank you for any ideas.
 

thebreeze

Member
Sounds like you need to dig into/clean the carbs. Clearly fuel is making it to the carb, but it must not be coming out of the carbs or it would be running.
 

Drewma

New member
First thing I would do is use the hook part of a coat hanger and "fish" fuel intake from tank to make sure it is free of debris. Next I would put duct tape over gas neck so it is air tight. Poke a hole in duct tape just big enough to stick air compressor fitting thru duct tape hole. You are trying to clear system of air bubbles. Use low air pressure, hate to have you blow something up with too much pressure. Just did this to my '03 F5...I watched air bubbles go thru fuel pump. Started on second pull after I battled starting it trying many other things. Not saying this is your issue but it worked for me.
 

3_old_jags

New member
sounds like your needle valve is stuck not letting gas into carb. Take the bottom of carbs off and check the needle valve under the float its most likely stuck closed.
 

snowballfox

New member
Well, I believe that the fuel pump is bad. Took the carbs off and they were completely out of fuel. Carbs were clean, floats were free and all looked good. Checked the fuel line in the tank and clean also.

Thank you for all information received!
 
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