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Charles, Marlowe gave you the correct starting sequence but I get the feeling from your post that you can get the starter spinning okay but it does not engage into the engine flywheel and spin the engine over. Am I correct? If this is the case then I'd say that you have a worn starter ring on the flywheel. My 450 has the same problem but the starter usually engages after a couple of tries. I think a discharged battery might have the same effect where there isn't enough voltage to trip the starter selenoid all the way. In regards to starting the 450, I'm going to assume yours is similar to my 1968 model. First make sure both fuel line shutoff's are open (unscrewed fully counter clockwise). There is one under the fuel tank thats part of the fuel sediment bowl. The other cutoff is found by getting on the machine, and looking at the left rear corner of the seat next to the fuel tank. This is a shutoff for the return side. Both shutoffs need to be open. The engine is stopped by pulling a knob/cable on the left side of the dash plate. This cable pulls a lever on the fuel distributor/pump. Make sure this knob is pushed all the way in. If there isn't a knob, the previous owner might have simply reached in over the fuel distributor and moved the lever by hand. Once seated, you will find the "steering" levers directly in front of you. These two levers are identical and control the slow-neutral-fast speeds for each track. Just to the left of them is the forward-neutral-reverse lever. On the floor to the left is the transmission high-neutral-low range. Generally you leave your transmission in low range. You steer by selecting either forward or reverse and then using the steering levers in oppsite positions to turn. For example the left steering lever all the way back is slow and the right steering lever all the way forward is fast. This makes the right track turn faster than the left and you make a left turn. Now to start the engine there should be a safety lever/switch thats mounted on the pedestal between the steering levers. Both steering levers MUST be in neutral (middle) and then this safety lever can swing back and press down on the starter button. When the key is "on" this starter button should be active. So, both steering levers in neutral, switch on, swing back the safety lever and press it down to activate the starter switch and the engine should turn over. Don't be surprised if the original safety lever/starter button is disconnected. Mine was. On my machine the previous owner simply wired the starter to the key-switch. Hope this gets you started (no pun intended). Drop an email or reply if I can answer any questions. John
1968 Case 450
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