What your really trying to do here is save the crank bearings, lower and upper rod bearings which all = big money. Fill up that crank area and gently work the kick start to help flush the bearings out and just keep draining it and carefully examine whats coming out. Do it allot more times than you think is necessary. Same with the gearbox.
The ignition cover is on the front left side of the motor and black. Remove the screws and cover and liberally spray everything with that CRC electrical cleaner (auto stores and decent hardware stores carry this stuff). Just flood the whole area and try to get it behind the flywheel also.
The carb is really not rocket science. Have a good clean area to remove everything and just spread out all the parts carefully in a logical pattern and clean and reasemble. Clean everything with carb cleaner and blow out with compressed air if you have it available.
Air filter can be cleaned in some solvent, then washed repeatedly with warm soapy water, rinsed really well and thoroughly dried. Re-oil with a good air filter oil and of course clean out the airbox also before reinstallation.
The reed valve area fills up with mud and debris so it has to be cleaned also. Ask me how I know.
And yes, like dave948 mentioned the best thing is to get that motor running ASAP. Don't wait.
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