Well if it was a car id say it was a weepy head gasket. Check your coolant level too and accurately assess the level frequently
No idea. Just stating in general when that happens its often a gasket problem. From your remark I deduvt its air cooled lol
More likely the natural moisture that occurs as a bye-product of burning petrol (water vapour h20 is the second biggest product of combustion) accumulating over time in the crankcase so may point toward poor piston manufacturing tolerances perhaps and ring let by.
Nope. So far so good. Hasn't budged. Still on the upper level. But I've only had the chance to ride it twice.....goes a lot better now....
Possibly ...........more likely stop /starting in a cold garage over winter period .........engine not getting up to temp properly , i seen it a little bit on both my dukes ........ not completley milky sight glass but a little there ,hypermotard 1100 sp 3300miles and street fighter 1098 with 2700 miles so hardly any miles for piston wear and yes i have run them a little over the winter whilst there in the garage ,probably better not to run them at all . Yes emulsification in oil can be a sign of headgasket problems but i see cars every day with cream on filter caps and up the dipstick tube ......corsas , clios, all the little stop start run around stuff .......... its the usage , same vehicles that get used regularly on the motorway dont suffer this .
all engines have a crankcase breather to alleviate for pressurising piston let by. The amount is miniscule per rpm per piston. But its there and its measurable. You have cylinder temps several hundred degrees higher than that of the oil in the sump. These gases include super heated water in the form of h20 gas, a natural product of combustion. Its natural that it is going to condense when it hits the cooler bottom end. Some will Breath out the crancase breather - pull the hose off and you can see it. Some will be retained and emulsify. As said above with lots of stop start journeys when the engine is at its loosest tolerances this is going to occur the most. It has nothing to do with the oil type, mineral or fully synth. Personally id just change the oil more often, whats 20 quid here and there for peace of mind
