First you will need to determine weather you have an AC or DC volt setup. If a DC volt system you can go to Americanlandmaster.com and download the service manual for a 6150 or 7150 150cc engine . You do not check readings while running. You check the pickup, stater and coil using an ohm meter, there is no way to check the CDI. If you have a good coil and blue spark the pickup is good. If a weak yellow or orange spark suspect either the coil or spark plug. If spark is good you will need to know what compression is by doing a compression test and also check the valve adjustment. If all the above is good you will look for a vacuum leak, bad fuel or carburetor.
|