This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

Oil In Fuel

Joined Nov 2006
164 Posts | 0+
Melbourne Australia
In a previous post I mentioned how when I dropped my bike the fuel started to flow from carbie overflow and it didn't stop for a long time or maybe not at all. I had starting and flooding issues and it appears that oil has entered into the carb from the crankcase. How can this happen ?? I assume the only possibility is via the diaphragm pump ??

I was unable to tell of the oil had made it to the petrol tank as I lost all my fuel through overflow or elsewhere so it was topped up after being empty but with all that Oil on the pug etc. it wouldn't fire.

I have taken the diaphragm pump off and cleaned it - it had a few bits of dirt in it but it seems to be intact. Pulled the carbie off and cleaned all jets etc. needle and seat seem fine - a slight ring mark around needle but no sign of wear.

I have had what appears to be an oil leak getting worse and I had already worked on the starter o-ring thinking that was the problem. It appears towrds front of bike but hard to tell origin of oil due to wind moving oil when riding. I was going to see if crank gaskets were faulty but now I am thinking if it could be related to the oil in fuel / diaphragm pump ??

Anybody experienced this ?? Should I be changing the rubber and plastic film in diaphragm pump even though they seem ok ?? What does this pump do ?? All it seems to do is pump petrol from bottom/reserve area of tank to top ?
 
Sounds Like Its Coming From The Breather Pipe At The Front Of The Frame. Maybe Somethings Wrong With Motor And Breathing Heavy?
 
AussieForce, how long have you run it since tipping? When I tip mine over, it smokes for a couple of minutes until it clears the oil out that made it up the breather tube, into the frame, and down the intake, then it clears up and I'm fine again.

thanks,
json
 
We didn't notice any smoke. It was more the overflow from the carb and the oil in the fuel and execessive amounts in exhaust of oil/fuel.

Kez - thanks for the pointer re: breather will check that.
 
As you guys meantioned above all seems to point to breather tube and back into carb via air filter intake. I still have the carbie overflow issue and the oil leak to worry about. Anybody have the same ?? as these are probably unrelated to oil in the fuel ?????
 

Register CTA

Register on Husaberg Forum! This sidebar will go away, and you will see fewer ads.

Recent Discussions

Recent Discussions