[hondarancher2014]

Ok I have a 2014 honda rancher 420 4x4 foot shift. I bought it knowing it wasn't running and the guy said its a bad or stuck open injector. I pulled the injector off and turned the key and fuel was dumping out of the fuel line. put the injector on the fuel line and it was spraying when I hit the start button. Changed the spark plug and it was getting plenty of spark. I have a second 420 that I took the ECM and mass air low sensor and O2 sensor off of the bike and didn't change anything. It will sputter when you try and start it while hitting the throttle so I think it something simple but not sure. I am new to EFI so I am looking for some help. Carbs are definitely easier to work on but on to EFI.
Thanks,
Hunter

 

[retro]

Check the cylinder compression first. Adjust valves to spec. Then clean the throttle body, check & clean the IACV, make sure the sensor in the airbox is plugged in and initialize the TP/MAP sensor per the manual. You can get a copy of the FSM linked HERE. Let us know how it goes... because you may need to replace that fuel pump and filter. 420 fuel pumps are wimps. Welcome to the forums!

 

[hondarancher2014]

I did forget to mention that I did check the IACV with the one off of the running bike and that didn't change anything so im probably going to drain and clean the gas tank then move on to the other things you suggested. thanks for the help

 

[ktriebol]

Since it has never been running while in your possession, I would check ignition timing and valve timing in addition to checking compression. You seem to be getting fuel through the injector, so I would focus on the things I mentioned before investigation fuel further.

 

[hondarancher2014]

cleaned gas tank and was old and dirty gas, and when you held the start button and the gas it would run until you let off the start button and it would die. the fuel pump was constantly pumping when you held the start button. trying to figure out what else could be wrong with it. don't really want to take it to honda to have it put on a computer but might be the last resort.

 

[shadetree]

cleaned gas tank and was old and dirty gas, and when you held the start button and the gas it would run until you let off the start button and it would die. the fuel pump was constantly pumping when you held the start button. trying to figure out what else could be wrong with it. don't really want to take it to honda to have it put on a computer but might be the last resort.

almost sounds like a bad fuel pump ?, or fuel relay ?.

 

[retro]

So you cleaned the rotten fuel out of it? But the fuel pump runs only while you are cranking the motor over with the starter? That sounds like a Bank Angle Sensor issue to me. Check the BAS and the fuel pump relay, cause those two work together. You should see the fuel pump run for 2 seconds each time the ignition key is turned on. Fuel pressure should read between 48-53 lbs. If it is low the motor will not start and run.

Check out section 4 and section 7 in the service manual. There is way too much info you gotta cover step-by-step for me to even think about typing up in here. But I'll try to help you if you get in a bind... let us know how it goes.

 

[hondarancher2014]

well I swapped the fuel pump off of a running bike and I've cleaned the throttle body and it is not throwing any code or check engine lights so at this point I am about out of ideas

 

[SamUK]

Timing isn’t out is it?

 

[retro]

Check the compression first and compare the measurement to the service manual spec. If it is within spec then check the ignition timing in case the flywheel woodruff key is sheared. Then check valve timing and adjust the valves. Assuming the fuel system is alright, its probably one of those...

 

[SamUK]

Check the compression first and compare the measurement to the service manual spec. If it is within spec then check the ignition timing in case the flywheel woodruff key is sheared. Then check valve timing and adjust the valves. Assuming the fuel system is alright, its probably one of those...

Woodruff key is exactly what I was thinking, these symptoms the OP is experiencing are pretty much the same as we had with keithuk’s rancher.

 

[retro]

Yep, this thing might have been hydro-locked in a pond for all we know.

 

[hondarancher2014]

I've never timed the new engines, so I know they have the plug on the crank case that shows the T but how do I make sure the cam is top dead center. Ive times older engines with the overhead cam

 

[retro]

Nevermind the valve timing until the compression is checked and ignition timing is verified. Then while you have the valve cover off for a valve adjustment you can check the cam timing. But 1st things 1st...

 

[hondarancher2014]

ok well this is probably a stupid question but I looked up ignition timing in the service manual and it showed using a timing light and having the bike running but how would I check that if its not running. Is it checking the coil or what? im just new to some of these electrical things so im trying to avoid messing up

 

[shadetree]

first, never put the cam on top dead center !!!...lol. you want the PISTON on top dead center on the compression stroke !!. second, there is a sticky in the repair section on how to set and adjust valves, read it, READ IT AGAIN..understand it !!. this will make your life sooooooo much easier.

 

[shadetree]

ok well this is probably a stupid question but I looked up ignition timing in the service manual and it showed using a timing light and having the bike running but how would I check that if its not running. Is it checking the coil or what? im just new to some of these electrical things so im trying to avoid messing up

you don't need a timing light. all you need to do is follow the sticky on how to set and adjust valves on any 4 stroke in the repair section, if you follow that ?, then its home free.

 

[ktriebol]

ok well this is probably a stupid question but I looked up ignition timing in the service manual and it showed using a timing light and having the bike running but how would I check that if its not running. Is it checking the coil or what? im just new to some of these electrical things so im trying to avoid messing up

you don't need a timing light. all you need to do is follow the sticky on how to set and adjust valves on any 4 stroke in the repair section, if you follow that ?, then its home free.

He was inquiring about setting the ignition timing, not the valve timing. To use a timing light on an engine that isn't running, just turn the engine over with the starter while using the timing light.

 

[hondarancher2014]

ok so after I double check compression what should be my next move because I have heard a lot of different things from different people

 

[retro]

IF the compression test is within spec (if not stop right there and fix it), then check the ignition timing using a timing light while cranking the motor over with the starter. The service manual shows you how to do it through the timing access plug. If it looks like its out slightly, suspect that the woodruff key is sheared on the flywheel.