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Discussion Starter #1
lets me start by saying i am not mechanically inclined.

i have a 2011 teryx 750. it only has 2500 miles on it. starts like a champs. never any issues.
brand new battery installed 6 weeks ago
last month i was riding and accidentally punctured the radiator with a stick. the leak was so small i didnt notice it while riding. the engine overheated and shut down. i pushed on the trailer and took it home. 2 days later, i cranked it and it started immediately. a friend of mine replaced the radiator. when i brought it back home, it wouldnt start. battery was strong but it would go. after several tries i started to pump the gas pedal while turning the key. it finally started after a bit with a backfire thrown in.

for the next several days, i would start it up and let it run for a few minutes. i did tis several times a day. the more i ran it, the easier it started the next time. my friend suggested that the plugs may have gotten really fouled and i shoud try running some seafoam in the tank. i did this.
for several more days i continued to start it and let it run awhile. after about the 3rd day, it started just like it did before. i thought the seafoam was the savior. i decided to replace the spark plugs anyways. they were pretty dirty. i though my problems were solved.


i went on vacation for a week and when i returned, i tried to start it up. right back to having to pump the gas pedal a few times to get it started. now im kinda lost.
ive seen posts similar to my situation but not the same. ive read a few threads that have me leaning towards a fuel pump assembly replacement.

to me it just seems weird that my start/fuel issues occurred after the radiator fix.

even tho i did the seafoam stuff, could the gas be bad?
should i syphon it out and replace it with fresh?
im also think about taking the fuel assembly out and see if i can find a blockage(even tho im not sure exactly what im doing or looking for)

any ideas?
thanks guys and gals
 

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start with the basics:

Personally I wouldn't syphon the fuel. I would fill it with fresh premium and run it. You may be able to replace the fuel filter on the older units too. Could be worth exploring for your situation. You can also look up what the readings should be on the fuel pump wire connector and see if you are getting the proper power to the pump. The fuel pump is $$$ so I would not just replace it yet. Honestly for those that aren't super mechanically inclined sometimes you actually save money by paying a diag fee at a quality Kawasaki dealer and then you can order/replace the parts yourself.

These units only need fuel, spark, and air to run after that you have a tip over/roll over sensor and the computer.

Also get your valves adjusted. Most ignore this and it makes a world of difference in running correctly. <-This is more maintenance than related to your problem I feel though.
 

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Discussion Starter #3
first of all, thanks for the reply

i actually just finished syphoning almost all the gas out. i thought that would be an easy fix if that was indeed the problem.
i did pick up 5 gallons of 93 octane gas but before pouring it in, i decided to remove the fuel pump assembly. i was able to take off the bottom piece or two and remove the fuel filter/sock. it appeared quite dirty/black. i then read that there is charcoal in those filters so im not so sure how dirty it actually is...lol.

seeing that it has never been replaced, i decided to order a new one off amazon. it should be here in a couple days.
i guess i could rinse it out, put it all back together, pour in new gas and see what happens but not sure its worth it because i will just be pulling it apart shortly when the new filter shows up.

ill do some research and see what i can find out about your electrical and valve suggestions in the mean time

thanks again
 

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After re-reading your post and thinking on my own issue if the new filter/fresh gas doesn't solve it there are only a couple more potential issues I see at least:

-clogging/partially clogged fuel lines

-Igniter/coil packs-seems far less likely as pumping the gas seems to get it started

-Fuel pump assembly unit. I have a 2017 teryx4 LE almost 900 miles. The fuel gauge stopped working and all grounds/wires looked good. I didn't check the connection on the back of the display because all other functions displayed properly. Figured Id google the fuel pump and its a float, pump, filter, sender unit all in one and $670 for mine. Called the dealer and THANK GOD its covered under warranty but its being replaced this Saturday morning.

Another thing and again could be just me. I don't feel the overheat experience is directly causing your issue. But, if your valves are out of wack from never being adjusted and the heat it would run better as its allowing the correct in/out time/volume for peak efficiency. Its controlling in a sense the in and out of intake and exhaust so if they are not opening enough/closing at the correct amount it just complicates things etc so again more of maintenance idea at your miles.

Keep us posted.
 

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Discussion Starter #5
as i said, i really dont know much but what confuses me even more is if this is fuel injected, why does pumping the gas pedal get the gas moving so it starts work?
fyi, i do see where there is an after market assembly that runs $150

ill post after i get the new filter in and put back together. it may be a week or so
thanks again
 

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The main issue with valve adjustment on the Teryx was the valves "sinking into" the valve seats, losing clearance and then never completely closing causing compression loss and hard starting. I don't think this is a factor in your problem since sitting a few days seems to have an effect. That being said if the valve clearance has not been checked, it would be prudent at 2500 miles to do so. As far as your filter sock, it should not look dirty/black. When you manipulate the throttle pedal you are opening the throttle plate, more air, and providing the ECU with information on throttle angle opening via the TPS or throttle position sensor.

Hope the filter helps, Mike
 

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where is the roll over sensor ?

I have a 2013 750 4x4 eps le . It was running fine last I used it , parked it . Week later it will start up but only runs for a few seconds an just shuts off like it is out of gas . Fuel pump is is working I pulled hose off an hit key an it's putting out fuel . What could be the problem ?
 

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I have a 2013 750 4x4 eps le . It was running fine last I used it , parked it . Week later it will start up but only runs for a few seconds an just shuts off like it is out of gas . Fuel pump is is working I pulled hose off an hit key an it's putting out fuel . What could be the problem ?
It’s probably best to start your own thread that way it doesn’t clog up this one and get confusing as the issue is different etc.
 

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Discussion Starter #10
heres a very small update.
i replaced the fuel filter and put in fresh 93 octane fuel. it had trouble starting just like before.
there was, however, some of the old gas still in the lines.
i got it started and let it run for 20 minutes. shut it down and fired it back up immediately. it started fine, just like before.
i guess i will wait a day or 2 and try starting it again. i have a feeling the simple stuff i already did isnt the solution
 

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Discussion Starter #11
follow up: nothing has changed. dealership is kinda baffled whe i told him over the phone what the deal is, i decided to order a new fuel pump assembly. i went the cheap rout after market. i figured if it works right away, at least i know that was the problem and can work towards getting a better or oem one later.
it should be in the mailbox in the next few days
ill let you know
 

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Discussion Starter #12
kinda bummed. i replaced the fuel pump assembly this morning. nothing has changed.
so that's fresh gas, spark plugs and now a new fuel pump.
now what?
 

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Discussion Starter #14
just got off the phone with another dealer.
she initially said starter clutch and then possibly fuel injectors needed cleaned or replaced
does that sound right?
she also didnt mention valves

another dealer said it doesnt sound like valves because once it gets started it runs good.
$110 an hour diagnostic doesnt sound that cool to me if they are just doing a lest try this and then lets try that.
maybe that s the way it goes tho
 

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Discussion Starter #15
wow, talk about frustrating.
Instead of just letting it run in the garage for 15 minutes, I decided to take it for a drive. i went up and down the road here a bit. acceleration was good, engine sounded fine. got over 40 miles an hour and really heated her up. when i pulled back in the garage lots of white smoke coming out of the exhaust and had a antifreeze smell.
My brother stops by and says he thinks there is a head gasket leak. says the overheat radiator issue burned a gasket allowing water to get in. thinks when I pump the gas it is working the water out until gas is present to start it. says it runs fine because the amount of gas overwhelms the little amount of water and still runs good.

agree? and if so, how hard is it to replace a head gasket?
 

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Based on the original issue of it overheating, and then your post about white smoke from the exhaust and an antifreeze/coolant smell, I would say you either blew the head gasket or cracked the head. The engine starting issue after the radiator replacement could be related to the fact you now had antifreeze/coolant blowing into the engine because of the gasket or cracking, and engines don't like running on antifreeze. Have you checked the engine oil to see what it looks like? If antifreeze/coolant is in the oil it will look milky.
 

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Discussion Starter #18
Yup, Pretty sure its the head gasket. checked engine oil and no sign of milkiness.
hoping its just the gasket and not the head
will find out in a few days how bad the damage($) will be.

I guess if i would have ran it hard from the beginning i could have ruled out the fuel stuff that i did.
 
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