Yamaha Electrical Supplies - Page 7 - Recent Questions, Troubleshooting & Support

Replacing the carb won't have any effect on the absence of a high voltage spark. The coil would but since you have already replaced it you can rule it out. So there are only two more things that can cause no spark. First trying to replace the capacitor and make sure the points are properly gaped and not worn.

Yamaha Ef2600... | Answered on Feb 22, 2015

If the fuel tank is below the carb, check for a check valve in the fuel line not seating. You can verify by shooting a bit of starting fluid in the breather. If it starts and then hesitates a bit and then runs, it means that the engine speed was adequate to suck fuel back up into the line to the carb.

Yamaha... | Answered on Feb 05, 2015

Most likely your battery has a cell or two dead oe weak. I think if you replace it you will find it working as it should. The batteries used in this gear is not of high quality. They generally fail in two years r so especially if left not maintained an go down.

Yamaha... | Answered on Jan 28, 2015

Check the governor mechanism or have a shop check it. It should rev up under load but if its doing it randomly then check the governor.

Yamaha EF2400iS... | Answered on Dec 28, 2014

Starter could be froze. I had one and if I hit it with a rubber mallet it would turn. Also check the juice of your battery it might be too weak.

Yamaha Rx1... | Answered on Dec 12, 2014

Did you ever fix the problem?

Yamaha 2400is... | Answered on Nov 28, 2014

You may have knocked something loose inside. Take off the generator end cover and look for anything obvious. There is nothing to loose at this point.

Yamaha 2400is... | Answered on Nov 28, 2014

The starter Bendix gear must be stuck in the disengage position, and is not engaging the flywheel. Try hitting the starter with a rubber mallet or with a piece of wood and a hammer. You may be able to loosen the gear by spraying some WD40 or the like into the gear. You probably should take the starter off to clean /lube the gear. If all fails, you're looking at a new starter.

Yamaha 96 Kodiak... | Answered on Nov 08, 2014

go on the net and search the make of generator Therre will be a page of specifications that will have all that information probably in pdf format.

Yamaha... | Answered on Oct 23, 2014

Most generators use a flyball type governor within the engine to control rpm; also there is a voltage regulator that tries to maintain voltage at about 115v. The voltage regulator varies the voltage to the armature increasing /adjusting magnetic force. Use a meter with htz or freq setting to adjust engine governor to 60 cycles. When the generator is producing 60 cycles, the engine should be turning 3600 rpm, max power range. At 3600 rpm the voltage should be 115 to 120 volts. Loading the generator will cause governor to try to maintain 3600 rpm. Check engine manual for proper adjustment of gonvernor and linkage. The governor mech should last the life of the engine, however governor system does wear out. Expensive repair. enjoy

Yamaha... | Answered on Sep 26, 2014

The oil in the gas is what lubricates the engine.

Yamaha Yz Yz80... | Answered on Sep 03, 2014

normally the carburetor would have a fuel bowl fastened by a hex nut which will then have to be removed.some generators have a fuel solenoid which can also be underneath fuel bowl.once removed you will see a jet mounted either on the stem or in the stem.in the stem you'll will need a small screwdriver once removed followed by a fuel tube which has tiny holes that can easily be clogged use a jet cleaning rod,i use a strand off a wire brush works well,check float for sticking or clogged if so remove by pulling the rod ,open fuel valve too allow it to force any possible debris,re install all the cleaned parts and good luck.

Yamaha... | Answered on Sep 02, 2014

You can but a carbureator cleaning kit at most of the auto parts stores. Comes in a gallon can. Just dissasemble the carb, put the parts in the basket let it sit overnight, and they shoule be perfectly clean in the morning.

Yamaha 2300 Watt... | Answered on Aug 29, 2014

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