Tecumseh 16 hp ohv adjustment

on a 16 hp. tecumseh the valve setting is .020 for the exhaust and .015 for the intake

try PartsTree.com they can help

try Parts Tree Repair Clinic.com

Check with Parts Tree Repair Clinic

Try Parts tree Repair Clinic

Try PartsTreeRepairClinic

Try Sears Parts Direct.com they will give you the info.

Your problem could be one of several things.. A bad spark plug, bad gas, failure to lower the idle and let it run a few seconds prior to shutting it off, unadjusted valves, etc.

I'd start with the plug and some fresh gas, then go from there. Always idle the engine down for a few seconds before shutting it off. This allows all the gas in the combustion chamber to be burned up preventing backfire.

Use a Champion N4C gapped at .030

Try to adjust the valves if is hard to pull at times and backfires.