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Discussion Starter · #1 ·
Having trouble getting the Rhino started. Here is what I have done so far.
1. Checked all fuel lines and they are clear
2. New Fuel Filter
3. Pulled fuel pickup out of the tank it's clear.
4. New gas

After I crank for awhile I pulled the gas lines off the carb and filter. No gas in the lines or the new filter. I'm thinking it's the fuel pump?? If so can it go bad just sitting for a month? That's the last time I ran it, and it ran fine. I have not pulled the carb yet, even if it's gummed up shouldn't there still be fuel in the lines and filter? Any help is appreciated.
 

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Discussion Starter · #2 ·
Anyone???
 

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Discussion Starter · #3 ·
WOW!!
 

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After sitting for a while it will loose its prime. If it doesn't start after some time, its bad. Try getting a short section of hose and filling the carb, just enough to get it started. It should keep starting till the next time it sits, then who knows
 

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Having trouble getting the Rhino started. Here is what I have done so far.
1. Checked all fuel lines and they are clear
2. New Fuel Filter
3. Pulled fuel pickup out of the tank it's clear.
4. New gas

After I crank for awhile I pulled the gas lines off the carb and filter. No gas in the lines or the new filter. I'm thinking it's the fuel pump?? If so can it go bad just sitting for a month? That's the last time I ran it, and it ran fine. I have not pulled the carb yet, even if it's gummed up shouldn't there still be fuel in the lines and filter? Any help is appreciated.
Got a service manual? there's a procedure on Pg 6-3 (2004 Base Manual, supplements for '05-'07) for checking the fuel pump. I could copy the text but without the diagrams it would be difficult to describe which hoses need to be disconnected. If you'll send your email I think I can email the pertinent page.
 

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take the fuel pump appart and you may find a verry small ammount of fibers from fuel filter. The valves in the fuel pump are a hard plastic so any debris will cause them to hold open ever so slightly. Try to use a screen type filter rather than a paper one if you dont already do.
 

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fuel pump problems

i had trouble with mine too. i bought a used 660 and when i rode for a while and stopped it would not start back. when it cooled off it started back. i checked everything you did and had same problem. i was told yamaha came out with a newer fuel pump and it would solve the problem. i bought one and for the last three months i have not had any trouble. maybe this will help some
 

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Discussion Starter · #9 ·
Thanks guys. I used some compressed air and hit the pump on the outlet side. I got some gunk out of it, then fuel started to drip. I turned the key and it started flowing right away. There must have been some debris in the pump. Not sure how it could get past the filter but it seems to run good now. Thanks for the help.
Justin
 
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