Now there’s some good thoughts Darin. I’ll check the color of the spark plugs. There’s some whitish smoke when I run it in the garage with doors open but I put that down to condensation, etc. my other bikes do the same in similar circumstances at least initially. I can’t tell if it’s smoking while I am riding it. I can’t find anyone to ride behind me in 38 degree weather. Twice I have added a little barleaks to the radiator hoping it will seal a leak. I think I will also try adding some diesel or cleaner of some sort to the oil and run it, just in case it is dirt holed up in the engine. The water pump I can check, that’s easily accessible. Good thoughts. On this bike there is a cannister of some sort that sits on the crankcase just to the back of the carbs. If that allows fumes or whatever out of the crankcase (there is a tube coming out of it , not sure where it goes), same with breather tube from valve cover to air box. If either of those are blocked it may be a cause. Graham
On Tue, Dec 25, 2018 at 11:15 AM Darin Hatton <[email protected]> wrote: > HI graham, merry Christmas. My first thought on your oil contamination > would be head gasket as well, although if you have a breach between coolant > and oil passages on head gasket you probably not losee any compression, > just get coolant in oil since the coolant is under more pressure. > Since you didn't mention any white smoke or blue smoke while running > bike, both of which indicate a breach into the combustion chamber, I think > the information you get will be related to ring and valve wear. . > Can you pressurize cooling system instead. If your crankcase was empty, > and had a leak between coolant and oil passages you would get collateral in > crankcase. > Possibly water pump seal? > Just my 2 cents. Darin > > On Tue, Dec 25, 2018, 10:54 AM kiwinPA <[email protected]> wrote: > >> EN500 Update, bike runs excellent but I have another issue. It seems >> moisture is getting in the oil. I have run the bike twice now for 10 miles >> on the road and both times there seems to be a slight amount of h2o in the >> oil. The drained oil looks almost just dirty with traces of a milky looking >> mix. I have changed the oil 4 times with the same result. Running the bike >> on the stand, rather than on the road (when it was too cold) did not >> produce the cloudy oil as seen through the sight glass, perhaps because of >> no load or whatever. >> My question is besides a leak from the cooling system, is there any other >> way moisture could be getting into the oil. It’s such a small amount and >> there doesn’t seem to be any drop in the radiator fluid level. I’ll next >> give it a compression test to check for a broken head gasket. I want to >> know however if there is any other way moisture could be getting into the >> engine, people?? Graham > > >> >> -- >> You received this message because you are subscribed to a topic in the >> Google Groups "Nighthawk Motorcycle Lovers!" group. >> To unsubscribe from this topic, visit >> https://groups.google.com/d/topic/nighthawk_lovers/HcarvYHpY1g/unsubscribe >> . >> To unsubscribe from this group and all its topics, send an email to >> [email protected]. >> To post to this group, send email to [email protected]. >> Visit this group at https://groups.google.com/group/nighthawk_lovers. >> For more options, visit https://groups.google.com/d/optout. >> > -- > You received this message because you are subscribed to the Google Groups > "Nighthawk Motorcycle Lovers!" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/nighthawk_lovers. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/nighthawk_lovers. For more options, visit https://groups.google.com/d/optout.
