2015 Ttr 230 Manual
Dawn dishwashing concentrate works very well. Mix a bowl of hot water and Dawn and place the filter, dirt side down into the bowl.
Slosh it around and squeeze the dirt out of it and then take a hose and squirt water from the inside of the filter out. This is so you don't wash dirt back into the filter.
Then squeeze out the excess water and let it air dry overnight. Go to your local dealer and buy a can of filter oil. Filter oil comes in a spray can and it is stickier than regular oil. It is specifically made for filters. Before you reinstall the filter, take some heavy grease, (waterproof wheel bearing grease) and grease the part of the filter where it seats against the air box inlet. This will keep dirt from getting past the seal. Have fun.:cool.
The valves are located in the cylinder head. This is how the intake gasses get into the cylinder and the exhaust gasses get out. There is a cam with lobes on it that open and close the valves and control which valves open and close at certain times during the piston stroke.
Valve clearance is the clearance between the valve and rocker arm or the cup and the cam. Some bikes have a cup on top of the valve with a shim in between and then the cam rides directly on top of the cup. Some have a rocker arm that rides against the cam and then levers down on the valve. Rocker arms usually have an adjuster bolt and lock nut instead of a shim to adjust the clearance.
Yamaha Ttr 230 For Sale
Your engine uses the rocker arm and adjuster bolt design. When the engine heats up to normal operating temperature and the metal heats up and expands from the heat, some of this clearance goes away. The clearance is what allows the oil to get in between the cam and the cups or rockers. If this clearance closes up completely, oil is squeezed out from between the cam and cups or rockers and then you will be running metal to metal. Without the oil between the cam and cups or rockers, the cam will be destroyed very quickly. This is why you have to check the clearance when the engine is cold.
2015 Ttr 230 For Sale
As an example, if the manual calls for.010' thousands clearance between the cup and cam and you only have.004' thousands clearance, this clearance will quickly close up to 0' thousands when the engine heats up. Thus squeezing all of the oil out from between the cam and cups and damaging the cam.
Too much clearance will also damage the engine because it will allow the cups or rockers to hammer against the cam and will quickly wear through the hardfacing on the cam. Do a search on the different strokes of a four-stroke engine. There are many good illustrations of how a four-stroke works on the net and will help you to better understand how your engine works.