Question about Watts Onan Portable Generator - 4000 , Model# 5500

2 Answers

VALSI 5,500 WATT GENERATOR WILL NOT START

I have fresh gas and oil and followed the exact instructions in
startinf the unit and will not start,I bought my unit 2 and half years
ago and it was used only once for a fews days due to hurricane.any ideas?

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All generators need to be run once a month. All things from the tank to the and including the carb will get gummed up with dried out fuel. I have a whole house generator and a 5500 watt gen set on my motor home. I keep fresh fuel in the stand alone house generator in California in case of a bad earthquake. I drain the gas after every run and keep all vehicles full of fuel just in case. Run gen sets at least once a month or pay pay pay!!

Posted on Jun 13, 2009

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If it was sitting with old gas in carb you may need to clean hte bowl and jet. probably gummed up.

Posted on Apr 17, 2009

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1 Answer

Troy bilt generator


pull the carby down and clean out the corrosion blocking the main jet

Jun 07, 2017 | Electrical Supplies

1 Answer

Been stiiting for 6 months wont start?


Start by draining the fuel and cleaning the carb. Modern gas goes stale pretty fast and any gas over 90 days old is risky if you don't add a fuel stabilizer. You can remove the air filter and spray carb cleaner into the carb then try and start it. If it starts and runs for a second then the carb is dirty/plugged.

Jul 02, 2011 | Porter Cable 5,500 Watt Portable Generator...

1 Answer

Not used for 2 years. It will not start.


Engine will

not start

1. Low on fuel or oil. 1. Add fuel or oil.

2. Ignition switch in "Off"position. 2. Turn to "ON" position

3. Faulty spark plug. 3. Replace spark plug.

4. Choke in wrong position. 4. Adjust choke accordingly.

5. Fuel shut-off valve in closed position 5. Open fuel shut-off valve.

6. Unit loaded during start-up. 6. Remove load from unit.
7. Spark plug wire loose. 7. Attach wire to spark plug.

Apr 23, 2011 | Porter Cable 5,500 Watt Portable Generator...

2 Answers

I have a valsi 7500 watt 13 hp with tecumseh enduro xl/c engine-its extremely loud and wouldn't stay cranked. My ex - an ''idiot'' worked on it without my knowledge - we now have lines that we don't know...


Valsi 7500 watts/13hp tecumsa engine. Was running fine and then started surging like it was going to die and then it ran out of gas. Put fuel in it and now it wont start. Gets fire and has plenty of gas. Problem???

Jun 23, 2010 | Electrical Supplies

1 Answer

Won't start No fuel filter problem. There is spark at the plug wire. Can it be the oil level switch?


More than likely the throttle valve is stuck closed and the engin isn't getting air and is now flooded, Remove spark plug overnight to allow gas to evap. Spay the carb and lincage with WD 40 to clean everything up; check throttle funtionality re assemble the next day. Prime wih two squirts if your machine has a priming bulb. Pull on the cord and start a digging!

Jun 20, 2010 | Porter Cable 5,500 Watt Portable Generator...

1 Answer

Generac home generator does not start. It starts alittle bit but then dies. Maybe runs for 4-6 seconds


is this unit diesel or gas? If its gas driven, the carburetor needs to be removed and cleaned out. Also make sure your gas is fresh. If not drain fuel tank, remove carb, clean out, re-assemble & test. Check fuel filter, oil level.

Feb 05, 2010 | Generac 13,000 Watt / 13,000 Watt Home...

1 Answer

Very hard to start


make sure choke is closed all the way.
filters are clean [if any]
or maybe to much choke, try with throttle wide open.
check plug to see if it is wet or not.
if dry it will need choke, if wet it will need throttle wide open.once starts, slow revs.
if plug is dry try a little shot of gas in cyl.

Nov 22, 2009 | Porter Cable 5,500 Watt Portable Generator...

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