stajerc1961
Model 0055040
Serial 5003053
Cranks no start.  Had local dealer come out to inspect.  Diagnosed bad faulty fuel regulator. $900+$250 for oil change, spark plugs and air filter.  Ordered new regulator and plenum assy.  removed battery,replaced regulator, replaced battery.  Cranks no start.  Checked signal to fuel solenoid and found no 12 volt signal.  Aplied 12 volts to solenoid and solenoid functions normally. Removed upper 1/8 pipe plug, energized gas flows freely from port.  Installed upper plug.  Removed lower 1/8 pipe plug, energized solenoid, gas flows freely from lower port.  Install lower plug.  Attempt to start manually while manually energizing fuel solenoid.  No start.  Checked spark at both ignition leads and found good spark.  No sure where to go from here.  I would think the engine would try to start is it has spark fuel and air.  Choke is closed. No 12 volt signal to solenoid points me to bad control unit.  I am not aware of any lockout that would prevent the engine from starting manually.  What should compression be on this v-twin?  Sounds normal when cranking.
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Wireform
A valve adjustment is in order if it wasn't done yet. 
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78buckshot
I second the valve lash adjustment.
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78buckshot
Oh, one other thing, try starting it with a little shot of either. If it has been awhile since it has run they sometimes need a little help.
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BrentB
Check stepper motor and throttle linkage. If fuel solenoid hasn't been being energized for some time, poppet valve could be stuck to brass jet. Cover the open intake in the air box with a gloved hand to allow more engine negative pressure against the poppet. Getting fuel past the solenoid doesn't mean it is getting to the intake.
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stajerc1961
10-4 to the valve lash check.  I tried covering the second throttle bore already to no avail.  Still have the no power to fuel solenoid issue.  How does one check the stepper motor?  Not a fan of ether here.  They get hooked on that quickly.  Thank you gentlemen for the replies thus far!!
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Isslandboy
stajerc1961 wrote:
Model 0055040
Serial 5003053
Cranks no start.  Had local dealer come out to inspect.  Diagnosed bad faulty fuel regulator. $900+$250 for oil change, spark plugs and air filter.  Ordered new regulator and plenum assy.  removed battery,replaced regulator, replaced battery.  Cranks no start.  Checked signal to fuel solenoid and found no 12 volt signal.  Aplied 12 volts to solenoid and solenoid functions normally. Removed upper 1/8 pipe plug, energized gas flows freely from port.  Installed upper plug.  Removed lower 1/8 pipe plug, energized solenoid, gas flows freely from lower port.  Install lower plug.  Attempt to start manually while manually energizing fuel solenoid.  No start.  Checked spark at both ignition leads and found good spark.  No sure where to go from here.  I would think the engine would try to start is it has spark fuel and air.  Choke is closed. No 12 volt signal to solenoid points me to bad control unit.  I am not aware of any lockout that would prevent the engine from starting manually.  What should compression be on this v-twin?  Sounds normal when cranking.

We had a butterfly that was sticking that presented the exact same symptoms, cross shaft holes were slightly mis-aligned.
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grsthegreat
i would definitely check compression. should be in the 160 range. compare both sides. Also,  If the controller isn't sensing an AC pulse  (via magneto and wire 18), it wont send 12v to the fuel solenoid.  but you are getting spark, co it could be a controller issue. Now the fact that you manually power the solenoid and it still doesn't start brings me back to checking compression.

have you tried the trick of pushing a small allen wrench into one of the 4 vent holes on the regulator while trying to manually start the generator with the solenoid bypassed?
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Steve H
This sounds familiar.  Been dealing with this same problem for 3 years now
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BrentB
Stepper motor should go to full open during cranking, and back down once started. Under air box see throttle linkage. Push and pull to and from fire wall to check for binding. I think fully to fire wall is wide open? You may also want to stick a finger down the intake holes and make sure both butterflys are still attached to the throttle rod. Saw a few in the past loose a butterfly, and saw a few with only a spot weld @ the air box side where the linkage broke off.
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