20 Most Recent Yamaha 1,000 Watt Portable Generator #EF1000ISC Questions & Answers


Try searching for a fuel shutoff somewhere near the bottom fuel line exit for the fuel tank on somewhere on the fuel line.

Yamaha 1,000... | Answered on Nov 26, 2017


It sounds like its running on the gas in the carburetor and not the gas filling back up to run more, I bet you have a gas supply problem to the carburetor! Try Babbitts Yamaha Partshouse online...

Yamaha 1,000... | Answered on May 05, 2017


clean tank fuel lines air filter and completely clean all carb parts and jets just did mine runs mint now did the same thing i also put in a new spark plug changed the oil a good once over goes a long way just take your time use a good carb cleaner like crc or gumout and check the jets they have small holes on the sides that can clog up hope this helps

Yamaha 1,000... | Answered on Oct 30, 2012


check the engine RPM as well it should be lower than 3600

Yamaha 1,000... | Answered on Aug 30, 2012


I have find the service manual with internet:


Standard compression pressure:

400 kPa
(4 kg/cm2 , 57 psi)

Yamaha 1,000... | Answered on Feb 11, 2011


I have the same problem, did you find the solution please?

Yamaha 1,000... | Answered on Feb 11, 2011


trash in carb take off and clean

Yamaha 1,000... | Answered on Feb 06, 2011


That will depend on the charger that you are using. If you use a 10 amp. charger it should only take about two hours for partial charge and up to six for complete. Thank you

Yamaha 1,000... | Answered on Jan 06, 2011


Sounds like the rectifier got fried. Moisture in these units is a dangerous thing. Even if you feel the unit sat long enough to dry ouit, it sometines will hold moisture in the electrical componants.

Yamaha 1,000... | Answered on Jan 16, 2010


i have the same problem. i took out the air filter and sprayed tb into it and it ran and died. this is the only way to get it to fire up.

i took off the carb, dissasembled it and blasted it out with tb cleaner, took out the jets too, put it all back and it still does the same thing. it is getting fuel but it won't run.

need a profesional answer on this one please.

thanks, tom.

Yamaha 1,000... | Answered on Sep 14, 2009

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