Hi Guys,
Having issues with this engine. Used to run fine but a little smokey until I removed it from a mower. My son tried to start it in the garage one day and reported a big misfire with a flash of flame coming out the exhaust and a big hiss of fuel blown from the air intake with the air filter removed. Also has the occasional backfire when trying to start. Decided it may be time to investigate and use the opportunity to hone, slip in some new piston rings and oil seals and lap the valves. After reassembly the engine is exactly the same. What have I missed? Have double checked cam and crankshaft timing and all is good.
Briggs 90112
0007 01
9602116FA
