Bassman8990

22 minutes ago, Melatv said:

You said they set the valves -- they had to take the fuel tank off -- the fuel line maybe kinked when they put the tank back on -- seen this done before -- 

Thats a good point. I'll check the lines going into the fuel bowl. It hasnt done it anymore in a while. Wondering if a little trash got in the system 

2 minutes ago, Misterclean said:

I own two with the 02 senser. These have an idle control valve. Check that first. I've heard that cleaning can help but if it's like my old Accord then just replace it

I'll check idle control on the throttle body. I don't have an 02 sensor on mine

2 minutes ago, Fishfiles said:

That's a good thing , eh !!! 

Process of elimination

1 minute ago, Fishfiles said:

Yep , I just called my 420 buddy , he said 2014 started the O2 sensors , I think Bassman has a 2013 ------ look at the exhaust and if it has one it will be screwed into the muffler  ----   he said run some Seafoam thru it 

You are correct, i don't have an o2 going to exhaust 

6 minutes ago, jeepwm69 said:

Don't think 13 had an 02 sensor.  That started on the new body style. 

May not but i believe the 2013 does. If im not mistaken that clip on side of the frame is the O2 sensor 

1 minute ago, _Wilson_™ said:

 

that might be the issue ... when jeep said 

 

 

question... why the updated side ways mounted  fuel filter ? 

Thats just an oem update. The original Fuel filter attached at the very bottom of the fuel pump & would collect sediment. The update oem one has an attachment on bottom the fuel pump that the fuel filter attaches to & it makes the fuel filter vertical beside the fuel pump instead of horizontal on the very bottom. 

25 minutes ago, shadetree said:

again...THIS IS FUEL INJECTED !!..LOL..they don't have a float bowl !!...lol.

Haha yea its fuel injection. But i already updated the fuel filter to the sideways mounted one instead of the one that sits on the bottom of fuel pump reservoir 

21 minutes ago, shadetree said:

jumping the gun are we ?..lol.

Haha probably 

15 minutes ago, oh400ex said:

 

Hard to tell through a microphone but...

Idle is super low... has it just gone out of spec? Adjusted it?

Engine sounds like a clock! Coil seems fine...

 

Edit: Computer controlled idle... missed that again lol

Haha yea its EFI so no Carburetor. May change o2 sensor & Coil & try that. My dad seems to think it's a coil also due to it getting to operational temperature before it starts stall. He use to work on lawnmower engines. But ATV's are a different beast. IS sounding like a clock a good thing lol

10 minutes ago, oh400ex said:

 

Get an OEM coil. Resist the temptation to order a "new" off-brand one and get OEM used

Had a similarly described issue with sport bike that turned out to be a stator but this sounds like coil to me as well.

 

If the spark plug boot doesn't have perfect connection you might be able to fix by trimming the coil wire. Unscrew the boot and make sure you see copper for the screw to connect on. If not you can trim off some of the coil wire to get back to fresh metal.

 

 

Well said about my advise too 🤣

https://youtu.be/YiJD9swLT84

6 minutes ago, Fishfiles said:

I am not a fuel injection guy , my fleet is all carbureted --- but , I do read a lot of threads on the real hard core four wheeler sites where they go deep , LOL --- and I hear a lot of them say they have problems with the O2 sensor and do a by-pass , the O2  throws everything out of wack and idling is one of the problems , but I don't know if a 2013 420 even  has a O2 sensor ----  when I don't know I like to throw crap at the wall , sometimes it sticks ----  could be food for thought , then it might be a crap sandwich 

Thats a good point didn't think about O2 sensor, i believe it has one. I'm new to EFI atvs also, use to carburetor. I'll definitely look into the O2 sensor 

4 minutes ago, oh400ex said:

 

Get an OEM coil. Resist the temptation to order a "new" off-brand one and get OEM used

Had a similarly described issue with sport bike that turned out to be a stator but this sounds like coil to me as well.

 

If the spark plug boot doesn't have perfect connection you might be able to fix by trimming the coil wire. Unscrew the boot and make sure you see copper for the screw to connect on. If not you can trim off some of the coil wire to get back to fresh metal.

 

 

Well said about my advise too 🤣

I checked the spark plug, gap & boot also. I'll definitely go OEM

34 minutes ago, jeepwm69 said:

Seems like I did see a similar problem and it was a coil.  I hate throwing parts at a problem, but used coils are cheap on ebay, and if it doesn't fix your problem you have a spare, right?

That's what i thought, coil is where I'll probably start since its the easiest to change out

33 minutes ago, jeepwm69 said:

On my buddies Rincon, when the fuel filter got clogged it would run fine for a bit, but as the fuel pump sucked the crap up against the inlet, it would eventually clog and kill the machine.  Let it sit, sediment would drop back down in the housing.  Would start and run for a bit, until the suction eventually sucked the sediment up against the inlet again. 

 

I'd certainly look at that first.

Yea i just changed fuel filter & o rings couple months ago. Barely ridden it. Just got it back from the shop getting valves adjusted & throttle body cleaned. Didn't do that before the shop. Really dont want to take it back. They had it for 2 months due to being behind.

I thought about that but wouldn't the fuel pump cause it to do that all the time & not just when it gets hot?

https://youtu.be/YiJD9swLT84

hey everyone i have a 2013 Rancher 420. The issue im having is when it warms up it wants to stall out. It fires right up & idles fine, but once its hot & the fan kicks on thats when it acts like it wants to stall. Does that sound like a coil going bad? In video as long as i stay in the throttle it'll stay running, when i get ready to come to a complete stop it idles very low & almost dies, i have to maintain throttle to keep it running. Only does it after its been running awhile & hot

Yea i may have been off but when i rotated crank to the next "T", both rockers had slight play,which is per manual as an indicator of being in the correct TDC. But i went back & double checked & reset them again on the correct TDC. Also found i had a bad exhaust valve... in video above.

@shadetree is this what you were talking about as far as the bad valve seat? My exhaust valve has a good bit more play upward play than the intake valve @ TDC on compression stroke. Thats after they were both adjusted to spec

@Fishfiles Yes i missread & i know the difference lol. I hardly ever used a torque wrench on anything, but i was just asking, i know somethings its best torque & some it dont matter.

@ melatv, yea my bad, my manual says 13, i missread. I did get the valves set but haven't started it yet because of having to get a section of fuel line that needed replaced. At first i accidentally set the valves on the "F" mark instead of TDC "T" mark, thought it was the T at first. So i turned the crank clockwise & set valves on the compression TDC. I'm hoping i didn't screw the timing up, by setting it at the F at first instead of TDC

So i got to timing hole & as im turning the crank clockwise i see 2 lines on the crank, then i keep turning clock wise & even see an F, then continue to turn clockwise then a short turn i see the T. I check the rockers & no movement, rotate 360 degrees back past the F & to the T again. The F looks just like the T, i accidentally set them on the F initially, then realized of turned crank again 360 degrees & set them on T when both rockers did have play in them, haven't started it yet, need to replace a fuel line. Hopefully i didn't throw off the timing, if so will have to take it to shop to get it retimed🤦‍♂️. Getting to the exhaust valve was a pain, probably wont ever do that again lol

Got it thanks. Also on that nut, i know it has to turn clockwise but that is closewise when looking at it from the read? Also Anyone know what size hex head i need for the cap for the Sight hole for TDC

Haha. Oh & When i take the back cover off to turn the crank clockwise to get the correct TDC, is that a special tool or just a normal socket that i put on the emd to turn it?

Casper...Yea ill change the yelow cover & possibly the ignition coil while im at it.

 @ jeepwm69.. i noticed the manual mentioned tightening the nut on the valve adjustment to 9inch pounds. Is torquing it to that exact spec necessary? I only ask because i can't find a torque wrench that goes that low. Most im finding is 20in/lbs, even on the quarter inch Torque wrenches..

Mine doesn't smoke at all, nor is it a hard start which is why im hesitant to check the valves but i am going to run some seafoam through it since there is carbon build up on the butterfly of the intake on the throttlebody 

Can yall give me advice on drain & removing the fuel tank? I just dont want to make a huge mess & have gas spraying everywhere. I saw on YouTube one guy turned his fuel off then just disconnected the reserve line from on top of the fuel pump then attached a fuel hose to it then opened reserve & drained fuel from tank into a gas jug?? That sound right? Or one way of doing it