some Yamaha Generator info....

thnaks for that NIck...

Ive done 8000hrs with this machine, the bore is even, smooth and all one color... it's given excellant service consider the mud, dust, sand and snow it has sat on...

im cleaning out the carbon from the exhaust port, i need to run it full speed more often...

I got one, never gets used enough.

How do you clean out the carbon from the exhaust port?

run it full pelt, with an additive or split the case and scratch it out with copper tool' maybe beter

ta, copper brush sounds a bit more family friendly.

this is one of the symptoms of a partially blocked jet..

quick fix is open the side cover, drain the carby bowl with the included carby float bowl drain hole that not all of it's competitors have... and then using a flat edged screw driver pry the carby's fuel line off it's holder and manually blow down the line, you will hear the air passing through...this can all be done by removing only the sidecover... clean the plug too

longer fix is....remove covers, clean/rinse the fuel tank, fuel tank filters x2, fuel lines, airfilter, carby bowl, blow out carby lines, blow out the fuel pump, pull-start assembly & scrub up magneto, remove carby & replace gaskets... leave to dry...

The EF1000is doenst need 15 pulls to fill the fuel lines, just fill the tank and wait for four-five minutes

after 8000 hrs, Ive just dug out my exhaust ports, lots of carbon after 8000hrs...i need to run it full pelt more often

ps, i havnt had to make any adjustments to mine, just keeping it or it enviorment clean

G'day Robertbruce
I note your comment about not needing 15 pulls to start after filling the tank
I have just bought a new EF1000is and the one complaint with it is needing 5 or 6 pulls to start it from cold ; as I have been turning the fuel tap off and allowing carby to run dry to avoid the problems that can arise from leaving fuel in carby when unit is stored or transported

I have only been waiting say 30 to 60 seconds after turning fuel tap on before pulling on the rope

I will try your method and see if it starts any quicker

But do yo have any idea why it takes that long ?
I would have thought it would not take long to fill a small carby bowl via a short fuel line from a very close fuel tank

and 8000 hours what a great run from it , what sort of use do you give it and what oil have you used and how often has it been changed

Garry

hey GK,

Sometimes mine will start from a two-three minute wait, but i figure the fuel has to move a fair way uphill and the tension of the fuel might come into play with the small size of the jets.
Othertimes the fuel pump certainly helps. A pull or two immediatly after fill and then one or two after a forty second interval, with some choke, usually gets it going after the second forty second interval. I usually prefer to wait, that is less painfull.

Yes, 8000hrs, still counting...Nowadays I would change the oil every three-tanks of fuel, max. If "eco" mode equates to 80 kilometers per hour, then three tanks of fuel is almost 3000kmls. Grubbing around in the dirt as these little generator do that's fair enough. The manual says 20 hours, about two tanks of fuel.

The sort of use ive given it is touring, camping, pro-extreme. Wind, sand, sun, snow, dust, mud etc etc..Most of its time is spent under the front or my vehicle.

A better treated machine will get far more time between majors. Today i finished re-assemblying it from the crank up. I had to fix the spark-plug thread I crossed and the exhaust port was carboned up from me not running it flat out more often. Reassembly was a great experience... on a previous strip downs I noted some possible mods and I have four improvements that I will be putting foward in the future.

Oil was a hassel. There was a shortage of Yamalube in some towns and I didnt get to change it as often as I would have liked. I tried to keep it to 10w-30's but after a few "contaimination" incidents have ended up using 20w-50. The oil contaimination issues were a mixture of slight wear and enviormental conditions, as a result it was using too much oil.

After reassembly today there was harldy any smoke and there still may be none. The carboned-up exhaust port and leaking spark-plug hole may have played a part previously. I only got to run it for five minutes.

Regular oil and air filter changes, as well as being kept out of the sun and wind while sitting on a solid base will give one of these machines serious longlivity...

and about draining the carby when staying by the seaside... an empty carby will sometimes corrode if left empty too long...