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2014 Hisun 700 UTV starting problem

Joe Rizo

By Joe Rizo
in Hisun UTV SxS Forum

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Joe Rizo Rookie

Joe Rizo

Posted
Posted

Hello All,

We have exhausted all possible troubleshooting steps, now we are in need of some help. 

Vehicle cranks but will not turn over. Things we have either replaced or tested and are now known good:

1. Fuel pump (new)

2. Fuel sensor (new)

3. Fuel injector (new)

4. Battery (new)

5. Spark plug (new), spark tested

6. fuses (12v to all)

7. we have 12v at the injector module and 11 ohms resistance

8. we have fuel in the fuel line to the injector

9. we have fuel at the spark plug

10. we have injector pulse, verified with noid tester

11. brake safety switch tested (couldn't find a separate switch assuming it is using the brake light switch)

12. seat belt buckled and seat in place (again, not sure if this model has these features)

13. replaced air filter

14. replaced several air hoses

15. flushed radiator and replaced with diluted antifreeze

16. Drained and cleaned the fuel tank prior to replacing the fuel pump.

Any ideas, we are open to....Help!!

 

Joe Rizo Rookie

Joe Rizo

Posted
  • Author
Posted

Compression is good

It’ll make a popping sound with starter fluid into the injector port but doesn’t turn over.

There’s no oil in gas or vice versa and no oil in water.


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Joe Rizo Rookie

Joe Rizo

Posted
  • Author
Posted

Not really sure how I’d check timing on this vehicle. But with the spark tester I see spark as I’m turning the ignition.


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Savage3 Enthusiast

Savage3

Posted
Posted

Do you have a service manual?

The spark has to happen at the correct time.

Assuming all of your previous troubleshooting steps are correct......Your timing is certainly an important consideration.

If an engine has fuel, spark, and compression, it should run unless the spark timing is off.

 

Generally speaking,  when you sprayed starter fluid and the result was popping, the engine was telling you there is a timing issue. Especially if the popping was coming from the intake.

 

Savage3 Enthusiast

Savage3

Posted
Posted

On most of the engines I've repaired on Hisun there are marks on timing gear that should be parallel to the head when piston is at top dead center.

At the same time, you can remove cover and look at crank. See if key is sheared, look at marks on crank to see if they are lined up.

The case should also have a port to view timing marks on flywheel.  Also, there should be a port so you can access the crank to turn it with a wrench. (So ya don't need to remove cover)

Im not sure how your 700 is set up, but, generally speaking these engines are pretty basic and simple. 

These are steps if you don't have a timing light. 

Savage3 Enthusiast

Savage3

Posted
Posted

Should be fine, that is the fastest and easiest way to ensure the timing is correct.

It can also be used for other projects in the future. Nice tool to have available. 

That said, if ya want to save the money, you can set timing by hand.

 

Denny D Newbie

Denny D

Posted
Posted
On 5/9/2025 at 6:16 PM, Joe Rizo said:

Compression is good

It’ll make a popping sound with starter fluid into the injector port but doesn’t turn over.

There’s no oil in gas or vice versa and no oil in water.


Sent from my iPhone using Tapatalk

Are you sure the compression meets the specifications? What is the PSI? I think the camshaft timing chain jumped a tooth, so the compression will be below spec.

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