get engine running and use hot oil flush and then do oil change again can also fill with diesel fuel or atf due to the high cleaning of the liquid(just dont run to long)then do oil change after it run
The PCV or positive crankcase ventlation valve does as it is named. It will remove harmful gases from the engine. Also, you can find breather caps on the valve covers, this also helps to remove and fumes from the crankcase or engine base.
condentsation
if its water cooled head gasket=(
Once you pull the powerhead, remove the flywheel, stator and trigger ring, there's nothing to it. Remove the crankcase bolts, I believe there are six of them. Pull the carburetor and the reed plate to gain access to the crankcase bolt hiding in there. Now make sure nothing is in the way and gently tap off the front crankcase half, leaving the crankshaft assembly in the block.
Use a pneumatic or electric impact wrench.
Put the bike on its stand. Loosen and remove the oil fil plug on the right hand top side of the crankcase. Put a funnel into the hole. Put a large pan or container under the crankcase. Loosen and remove the oil drain plug from the bottom of the crankcase. The old oil will run out. Then, put the oil drain plug back in and tighten it. Finally, pout the correct amount of JASO MA or MA2 certified oil into the crankcase.
Put the bike on its side stand. Loosen and remove the oil fil plug on the right hand top side of the crankcase. Put a funnel into the hole. Put a large pan or container under the crankcase. Loosen and remove the oil drain plug from the bottom of the crankcase. The old oil will run out. Then, put the oil drain plug back in and tighten it. Finally, pout the correct amount of JASO MA or MA2 certified oil into the crankcase.
if it has one, it will be simple to remove the bolts and pull it off. if it doesnt, then you have to pull off one side of the crankcase.
All of them. Every vehicle uses positive crankcase ventilation to remove fumes from the engine.
the mechanical seal on the water pump is out
antifreeze (Water) pouring down the front of the engine is from the water pump.
If it is still getting water in the cylinder then it could be coming from the bottom / below the piston. Typically the seal on the water pump will leak allowing water to get into the crankcase. If it gets too much it will get on the cylinder walls and smoke.