Oil Leak.

[KarlS]

Noticed yesterday I had some oil on the motor and today started to look for the problem. Looks like it's coming from the long upper crankcase breather cover between the cylinders. The crankcase vent mod has been done but does NOT seem to be coming from filter or connecting hose. In the service manual I cannot tell if there is a gasket or not. I see they are supposed to be tightened to only 7.2 ft lbs. Anyone know if there is a gasket before I mess with it.

 

 

ALSO. For some reason my oil sight glass is BLACK, can't see through it at all. Just last week it was clear. Oil has not got many miles on it. Is there any way to check oil level on these things without using the sight glass? I looked in some older posts and some said to put Seafoam in crankcase to clean glass. How much do you add and how long do you run motor? I ASSUME it has to be drained fairly soon so it doesn't thin the oil to much.

Of course the bike has been running and doing great BUT since I have somewhere to ride this Saturday it just has to act up.

[Condor]

Noticed yesterday I had some oil on the motor and today started to look for the problem. Looks like it's coming from the long upper crankcase breather cover between the cylinders. The crankcase vent mod has been done but does NOT seem to be coming from filter or connecting hose. In the service manual I cannot tell if there is a gasket or not. I see they are supposed to be tightened to only 7.2 ft lbs. Anyone know if there is a gasket before I mess with it.

 

 

ALSO. For some reason my oil sight glass is BLACK, can't see through it at all. Just last week it was clear. Oil has not got many miles on it. Is there any way to check oil level on these things without using the sight glass? I looked in some older posts and some said to put Seafoam in crankcase to clean glass. How much do you add and how long do you run motor? I ASSUME it has to be drained fairly soon so it doesn't thin the oil to much.

Of course the bike has been running and doing great BUT since I have somewhere to ride this Saturday it just has to act up.

 

You may be getting a lot of piston ring blow-by causing the crank pressure to build up, causing the oil leak, and the oil to turn black. Pop the top off the air cleaner and see if you have oil at the bottom of the housing.. I've never heard of the 'twinkie' leaking oil. There are 'o' rings to seperate the water and oil. Never have figured out it's function, but it's either an oil cooler or a coolant warmer?? Change the oil and filter and see if it's black oil or black sight glass. Put a couple of drops on a piece of white paper and see if there's anything metalic in it. Make sure you check the magnet on the drain plug too. Hope it's something simple...

[KarlS]

You may be getting a lot of piston ring blow-by causing the crank pressure to build up, causing the oil leak, and the oil to turn black. Pop the top off the air cleaner and see if you have oil at the bottom of the housing.. I've never heard of the 'twinkie' leaking oil. There are 'o' rings to seperate the water and oil. Never have figured out it's function, but it's either an oil cooler or a coolant warmer?? Change the oil and filter and see if it's black oil or black sight glass. Put a couple of drops on a piece of white paper and see if there's anything metalic in it. Make sure you check the magnet on the drain plug too. Hope it's something simple...

 

 

Weatherman says thunder storms rolling in so had to go cover up the bike. (have to work on it outdoors) I'll check the air filter tomorrow and I'll pull the small K&N crankcase filter off the "twinkie" in case it might be plugged and building up pressure. Changing oil and filter has to wait until first of the month. Thanks for the advice.

[Condor]

Weatherman says thunder storms rolling in so had to go cover up the bike. (have to work on it outdoors) I'll check the air filter tomorrow and I'll pull the small K&N crankcase filter off the "twinkie" in case it might be plugged and building up pressure. Changing oil and filter has to wait until first of the month. Thanks for the advice.

 

You won't be getting any oil up into the air cleaner box if the crank hose has been removed and replaced with one of those filters. Good idea to check it for flow. Hope the mod hasn't contributed to the problem....

[friesman]

Noticed yesterday I had some oil on the motor and today started to look for the problem. Looks like it's coming from the long upper crankcase breather cover between the cylinders. The crankcase vent mod has been done but does NOT seem to be coming from filter or connecting hose. In the service manual I cannot tell if there is a gasket or not. I see they are supposed to be tightened to only 7.2 ft lbs. Anyone know if there is a gasket before I mess with it.

 

 

ALSO. For some reason my oil sight glass is BLACK, can't see through it at all. Just last week it was clear. Oil has not got many miles on it. Is there any way to check oil level on these things without using the sight glass? I looked in some older posts and some said to put Seafoam in crankcase to clean glass. How much do you add and how long do you run motor? I ASSUME it has to be drained fairly soon so it doesn't thin the oil to much.

Of course the bike has been running and doing great BUT since I have somewhere to ride this Saturday it just has to act up.

 

If its too full it will look black, and youll end up with oil in the breather, drain out a liter or 2 and check it out..,,,dont ask how I know

 

Brian