April 1Apr 1 I have a 2015 4RT that I bought used in 2020. I've never had an issue with this bike, but it recently sat in my garage for about 6 months without being ran. It ran fine when last put away. I replaced the fuel with fresh non-ethanol fuel and tried to start it with no luck. It will start and run when spraying starting fluid down the air boot, so to me that points to a fuel issue. I unplugged the fuel pump connector from the bottom of the tank and connected 12v to it. Nothing happened. No pump sounds. No fuel out the disconnected fuel line. Is there something that would cause the fuel pump not to pump when directly connected to 12v power, other than a completely dead pump? I haven't pulled the pump out of the tank yet to inspect, but find it odd for a pump to fail while sitting in a temperature controlled garage for 6 months.
April 1Apr 1 Author I've now pulled the pump completely out of the assembly and connected 12v directly to the terminals on the pump. No noise, no pumping, nothing. I've never had a fuel pump fail like this before. Usually they get weak and can't pump the required volume or pressure, or there's a physical crack or something on it. This one looks almost brand new and is acting completely dead.
April 1Apr 1 Author Looking for a new fuel pump. The OEM one is super expensive, around $600 for part number 16700-NN4-J10 Found this one on ebay that looks like it should fit. Anyone know if it would work? https://www.ebay.com/itm/174253542570
April 5Apr 5 It is unusual for the pump to fail, particularly the older style, they were pretty reliable. Yeah that pump should do the job
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