kipor generator wowos

[stav]

Hi All,

Not been here for sometime, but having decided boat needs to stay and be used more have decided to varnish the few bits of wood (westerly conway) but went to get the generator out to start sanding...........


A kipor ig1000 and a few years old with little use 50, perhaps 80 hours. Not used for a year perhaps 2.

Initially started but would not run once choke off but would reach full idle revs then just die. Petrol was coming out of the case at the bottom. Tonight brought home and tried, started easily but would not run, noticed oil light came on so went to check oil and petroly excess oil poured out of the oil dipstick hole.

So how will petrol be getting in to the sump?

I guess check the carb? Stuck rings? I am more a diesel person and definitely only a keen amateur. What am I looking for when taking a carb to bits?

Any thoughts on the way forward welcome.

Thank you

 

[Dull Spark]

I know nothing of your engine, but once parked a car facing downhill just after filling the tank. The float valve that controlled fuel to the carburettor failed open and allowed petrol into the engine. I persuaded the local fire brigade to take the oil/petrol mix off my hands. Good luck.

 

[VicS]

Hi All,

Not been here for sometime, but having decided boat needs to stay and be used more have decided to varnish the few bits of wood (westerly conway) but went to get the generator out to start sanding...........


A kipor ig1000 and a few years old with little use 50, perhaps 80 hours. Not used for a year perhaps 2.

Initially started but would not run once choke off but would reach full idle revs then just die. Petrol was coming out of the case at the bottom. Tonight brought home and tried, started easily but would not run, noticed oil light came on so went to check oil and petroly excess oil poured out of the oil dipstick hole.

So how will petrol be getting in to the sump?

I guess check the carb? Stuck rings? I am more a diesel person and definitely only a keen amateur. What am I looking for when taking a carb to bits?

Any thoughts on the way forward welcome.

Thank you

I have taken a look at the Service manual .... but it has not helped.


If petrol is finding its way from the tank into the sump then the first thing to look at is the fuel tap ... assuming you had not left it open for 2 years ! If you had then that maybe all that is wrong.


Then check the fuel pump diaphragm ... maybe if that is punctured petrol will find its way via the vacuum connection into the engine
And the carb float valve as already suggested ... although I am not sure Id expect that not to let by a bit over two years esp if the tank vent is closed and the tank is pressurising in warm weather.


There is no reason at this stage to suspect anything is wrong with the piston rings

 

[stav]

Thank you for the replies, will start by looking at carb/fuel pump.

Not sure what I am looking for! Suppose I take it apart and reassemble checking the float/needle is moving. than give it a try?

 

[Topcat47]

If the engine is a 4-stroke and petrol is getting into the sump, it will lie on top of the oil and the top of the dipstick will smell of petrol, not oil. There may be some mixing caused by attempts to start, in general lub oil tends to mix poorly with petrol. I know old seagulls were lubricated with SAE 30 originally, as were pre-war 2 strokes but they needed heavier concentrations of the oil. There should not be a lot of oil in the sump of a simple 2-stroke.

 

[sailorman]

If the engine is a 4-stroke and petrol is getting into the sump, it will lie on top of the oil and the top of the dipstick will smell of petrol, not oil. There may be some mixing caused by attempts to start, in general lub oil tends to mix poorly with petrol. I know old seagulls were lubricated with SAE 30 originally, as were pre-war 2 strokes but they needed heavier concentrations of the oil. There should not be a lot of oil in the sump of a simple 2-stroke.

Its a 4 stroke
check carb / tap & change the oil to correct volume

 

[Heckler]

Its a 4 stroke
check carb / tap & change the oil to correct volume

It will probably be the fuel pump diaphragm got a small hole in it. The bit by topcat47, sorry but slightly wrong in some counts! Sorry, was a bit harsh there! I apologise.

 

[steve66]

We used to get this a lot with Honda gx kart racing engines. If the kart was stored incorrectly with the fuel turned on the float used to let all fuel up through the jet and emulsion tubes, through the venture, into the inlet manifold and into the sump. Clean your carb esp needle valve and seat refresh your oil and turn off tbe fuel when finished with and even better run the carb dry if the generator will let you

 

[sailorman]

We used to get this a lot with Honda gx kart racing engines. If the kart was stored incorrectly with the fuel turned on the float used to let all fuel up through the jet and emulsion tubes, through the venture, into the inlet manifold and into the sump. Clean your carb esp needle valve and seat refresh your oil and turn off tbe fuel when finished with and even better run the carb dry if the generator will let you

Same in the Briggs engine on the ride-on, it didnt have a fuel cut off tap, difficult to start & smoked like Molly Winley.
I sussed the prob & added a tap in the fuel line

I have a Kipor & it has a fuel tap

 

[stav]

Hi, thanks for the replies.

It had been stored with the fuel/engine switch off. I do normal close the air vent then let the it run for 30 seconds or so then turn off. I had filled the fuel tank with fresh fuel so left it over night, changed the oil and had a go at starting and it did. Ran smoky for 5 or 10 mins then ran put a small load on and left for an hour and all OK. Started and ran when warm and again cold so will take back to the boat tomorrow to progress the varnishing!

So assume something had stuck in the carb? Still not clear how it filled the sump?

Anyhow thanks for the replies and will give it a start at least at the start and end of season.

 

[VicS]

Hi, thanks for the replies.

It had been stored with the fuel/engine switch off. I do normal close the air vent then let the it run for 30 seconds or so then turn off. I had filled the fuel tank with fresh fuel so left it over night, changed the oil and had a go at starting and it did. Ran smoky for 5 or 10 mins then ran put a small load on and left for an hour and all OK. Started and ran when warm and again cold so will take back to the boat tomorrow to progress the varnishing!

So assume something had stuck in the carb? Still not clear how it filled the sump?

Anyhow thanks for the replies and will give it a start at least at the start and end of season.

A slowly overflowing carb would probably result in petrol flooding int via an open inlet valve then down past the rings although the theory does depend upon the geometry of the thing.

One thing for sure though its that the fuel tap must be letting by. If it had shut the petrol off properly it could not have happened.