zen
Hi guys I get a call from this guy saying his gen didn't start for its routine after 5 attempts.
He said 2 weeks ago it only started on 2nd attempt.
I thought it could be a fuel issue but he said his tanks are full of propane.
Any thoughts of why I should expect anyone?
I am going there tomorrow.
Thanks for any advice.
Play safe.
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BrianMartin
I would check the air filter, gas pressure, battery cranking amps. If all ok,

Check the valve lash while the engine is cold before you try to start it.. If within spec,

Test spark. If good,

Look to make sure the stepper motor is going through it's cycle when the motor is cranking.. It may we jammed, broke or even just unplugged from the controller...

Some generators will start fine without choke when it's warm, others struggle even on warm days...

Hopefully that gets you somewhere.
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zen
Thank you Brian.  It started well the whole winter every 2 weeks but that time 2 weeks ago and today it didn't at all.  It is a 2017 that worked 200-300 hours all together at the most.
I will follow these steps and go from there.
Will come back to tell.
Play safe.
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george6488
What maintenance has done on this unit?
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zen
Probably none.  Wasn't installed by our company and it's only 2 years old.
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78buckshot
If no maintenance and 200-300 hours on the unit then I would bet the valves are in need of adjustment but check all of the items that Brian recommended.
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zen
Hi guys.I went and it seems it is a stepper motor issue.What it does is if i push it all the way down and push manual it will go up but come back down.
If I push it all the way up and push manual it will come down.
In both cases it comes down just about an 1/8 of all the way down and gen won't start.
If I set it by hand around middle while it cranks the gen start.
Stepper motor bad or should I do more test?
Thanks for help.
Play safe.
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Peddler
Need the SN to know which unit you have.
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zen
ser: 9501214 been installed on 2015 but whole new engine been replaced in 2017.New eng ser: 3001907972.
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Peddler
The stepper motor should cycle to wide open and then return to the lower throttle butterfly open about 1/3 -1/2 open. then the unit should start to crank and if the controller see cranking from the 18 wire it will then open the fuel solenoid and the unit should start.  If it will run when you manually control the throttle position then I would guess the the stepper is defective.  When it starts does the stepper maintain speed with different loads applied? 
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zen
I didnt put load on it and the stepper goes back an forth til it warms up then stays.I test the fuel solenoid and it open when the engine cranks.
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