Ts185 oil coming out of spark plug hole

ABCanuck

ABCanuck

Coast to Coast
Just was given a free '77 ts185 by a buddies dad. Checked compression and it seems decent. However, when I kick it over with the spark plug removed tons of oily crap comes out of the cylinder.

I have the fuel tank removed and the oil tank is bone dry. What the heck should I do. I have good spark so I'd like to try and run it with an auxiliary tank if possible before I do anything else.
 
you have a crankcase filled with oil from the oil tank
you need to get that rinsed out if it happens to pump enuf of a surge of it to the top you will bend the rod
besides it will take too long to burn off
there may be a drain plug on the crankcase but that is rare
otherwise i can outline a method for you
 
I figured as much. If you could outline a method in case there isn't a plug when I get back out there xB. That would be much appreciated
 
it involves pulling the carb and putting the piston at tdc then you should be able to bend a piece of copper wire into a dipstick and fish it down in there to see how much
then you can with a suitable suction device fish a plastic hose in there and suck, a good turkey baster can do it
dump some fuel in there lets it sit for some hours and suck it out
then you can vigorously spin the motor over with the sparkplug out say with a power drill and it will pump more of a mist out the top to get the remnants of thinned oil
messy procedure
just be sure and have the ignition off and a fire extinguisher ready i would do it outside for sure any spark could ignite the mist
 
Good deal. Thanks for the tips. Simple enough isn't it. Just nice when others have gone before and you don't have to do the "hmmmm.....i could suck it out this way?" Phase.
 
stand it upside down on handlebars to get majority of oil out.
Depending on the year, it should have a crankcase drain, I forget when Suzuki stopped drilling case though
 
I ended up going that way pj to start. Question though. What would allow the oil to seep into the crankcase like that. Poor seal in the oil pump?
 
Probably just stuck ball bearing in the non-return valve.
Should be OK when you get fresh oil in there and start running motor, couple of heat cycles will work wonders. It is possible to strip and clean pump but I would only do that as a last resort
 
Ya these weren't "Rebuildable" as they only sold the whole unit so I'll get her uber clean then give it a shot. So should I put some fuel in the case to rinse out the old crap?
 
Only if you lubricate the bottom end after you do that. :)

There is always a small amount of oil in a two stroke crankcase. I stripped a "rebuilt" GT750 recently and two of the crankcases were full of oil. When I way full, I mean completely covering the crank. That doesn't take a whole lot of oil but it will bend a rod if the motor fires up with all that oil down below.

I'd pop the head and barrels off and look in the bottom end to be sure.
 
Watch your oil hoses closely. Even if you bleed the pump, a stuck check valve will allow air to back up into the line and can even act like a vacuum leak.

After 30 years, I wouldn't leave my crank bearings in the care of those valves. A few heat cycles will normally thin out any gum, but how much longer before those years of grit lock the check ball? Though as long as the pump is free of grime or grit, it'll outlast several top ends.

The glue in those lines should have shrunk by now and cause another source for air in the lines.

The lines can be replaced with typical modern clear tube and joints and the check valves can be rebuilt. Blowing air through the check valve will only stick it worse.

Ride it like you don't even know her name, but checking those oil lines must be a part of your pre and post-ride rituals. Don't fix it till it's broke.
 
I was planning on replacing the lines for sure redliner. Definitely wanting to make sure the oiling system is working properly so she doesn't blow up on us. May just start a thread for this little gal :)
 
So I ended up doing volume checks on the pump. Things were pretty close to manual specs. However, it sat most of the summer and the small amount of oil that was still in the I.V. I had set up has drained past the pump again. Check valve? Or.... There also seems to be an overabundance of oil coming out of the exhaust.
 
Check transmission oil level, there should be a level screw on clutch cover (10mm head plus Phillips 'slots'
Make sure bike is upright when checking.
If level is dropping the main seal is probably leaking.
It's easy fix after you pull clutch cover and drive gear
 
If oil is draining out of the "tank" into the motor it's past a check val;ave and even good ones will seep a little over time.
 
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