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09 S running rough

918 views 3 replies 3 participants last post by  scotty1111 
#1 ·
Hey guys new to site and have question or two for ya my wife rzr s recently began to run really rough and backfires sometimes on decel or when just reved up at a stop. Also statred to hear little clicking from motor that comes and goes. It sat for about 4 months put some new fuel in it since tank was on last fuel bar new battery and started to hear the backfire and ticking??? Oil level is good and has 85 hours and about 1,100 miles so not quite to the 100hr full tune up but curious if it could be valve tick etc?? It did come and go then stayed constant last few miles of ride so.......im confused thanks guys!!!
 
#4 ·
First thing to do is trot down to the local Autozone or O'Reilly's and borrow/rent a fuel pressure gauge. From the manual:

An electric fuel pump assembly is used to transfer fuel to the EFI
system from inside the fuel tank. This assembly includes the fuel
pump, fuel filters, regulator and fuel gauge sender. The pump is
rated for a minimum output of 25 liters per hour at 39 psi and has
two non-serviceable fuel filters.

The tank is located under the passenger seat and the pump, filters and regulator is in the top of the tank. If the pump is bad, trot down to AutoZone or O'Reilly's and buy an Airtex pump for a 80's Jeep. I thing the number is 8335. There is a video by Johnnycat8 on here on how to change it. If it's not the pump, check back.
 
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