Petrol in my engine oil chamber why
If you're getting fuel into your oil, your fuel delivery system is leaking. This problem is most common on carburated engines. The needle valve is not seating properly and when the engine is stopped, the carburator is flooding and the fuel is flowing into the engine. Once it gets into intake manifold, it seeps past the valves into the cylinder. Then it seeps past the rings into the crankcase contaminating the oil. If your bike is fuel injected, the same thing is happening because the fuel is pressurized by the fuel pump and your injector(s) are leaking fuel into the engine.
On a carb equipped machine there us usually a petcock to turn the fuel off with. You can either turn the petcock off each time you turn the bike off (a good practice) or you can have the carburator repaired. Some late model bikes have a vacuum operated petcock that automatically turns the fuel off when the engine is stopped. If your bike is equipped with this type of petcock, the petcock could be defective or is positioned in the "prime" position. If you go into the carbs (I think your bike has two carbs), replace the needle and check the float height setting according to the manual in both carbs.
If your bike is fuel injected, these devices are usually not easily servicable, simply replaced if they malfunction. You could try adding a bit of fuel injector cleaner designed for automotive use to your fuel. It may clean the injector (or needle in the case of carburators) and solve the problem. Otherwise, I'd probably take the bike to a repair shop.
Oct 19, 2009 |
Honda VTR 1000 F Firestorm Motorcycles