On - Regular Driving
Reserve - Is when you run out of gas, gives enough gas when on this setting to make it to the gas station
Prime - Dont use this if possible, it opens the fuel valve all the way.
10w40 motorcycle oil will work fine.
Users Manual recommends 10W-40 but anything up to 20W-50 will also work
Does the starter work? if yes is there spark ?if yes is there fuel?
The petcocks are vacuum operated petcocks. This means that they have a little diaphragm and valve set-up in them which responds to engine vacuum and allows fuel to flow only when the engine is running and supplying vacuum. This is is how things work when the petcock lever is set to the "on" or "run" setting. So we see that the "on" setting is actually the "off" setting when the engine is not running. So if the engine quits for any reason (as in a "down" situation), the petcock(s) will automatically close and prevent the fuel from flowing out. These petcocks also have two other lever settings: The "prime" setting bypasses the vacuum function and allows fuel to flow at all times, even when the engine is stopped. The purpose of this setting is to allow the carb float bowls to be filled when the engine is not running. Note that if you run your petcock(s) on the prime setting all the time, you lose the safety feature provided by the vacuum petcock. Note also that on this setting, fuel is prevented from flowing out through the carbs, into cylinders, etc.) only by the float valves in the carbs, which close when the carbs are full. Should one of these float valves stick open or leak, you then get flooding through that carb. The "reserve" setting is used to access an additional amount of fuel when you start to run out. Here is how this works. These petcocks have inlet towers which stick up into the tank. In the "on" position, fuel flows down to the petcock through an opening high on the tower. So when you "run out of fuel" you actually have some more fuel sitting in the bottom of the tank which lies below this high inlet. When you turn the petcock lever to "reserve", a lower inlet near the bottom of the tower opens, so you can gain access to this last bit of fuel in your tank.
BY petrol / diesel / lpg. they call it fuel :)
Usually, the fuel petcock valve has two different length tubes: longer one for Main/On, shorter one for Reserve. The shorter tube allows remaining fuel in bottom of the tank to be accessible once fuel level goes below that of the longer tube.
check if you have fuel and spark it needs both to work
Suzuki had to call back thousands of there cars back to there work shop to REFIX a fuel pump defect!
Most cars have a fuel pump relay switch located either under the hood in a fuse/relay box or on the firewall.
I am guessing the pin being referred to is the fuel pump rod that rides on the cam lobe and creates the in and out motion required to activate the fuel pump lever that pushes on the diaphragm of the fuel pump to make it work.
NO! If your talking about a 100% legit katana, then no. It will ruin the blade. If it is a true katana, take it to a pro for sharpening. If it is a replica, look at the edge. If there is a secondary bevel, then yes, you're fine. If not, use a whetstone and sandpaper (search "how to sharpen a katana" on google). Your welcome!
try warming your spark plugs with a lighter, if that does not work check your fuel mixture, or clean the carburetor.