OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Engines Questions On Briggs & Stratton Engines Another unit with a B&S 3.75 HP

Hi,

On a separate topic....
I've also taken-up a Rover fitted with a B&S 3.75 HP engine, model 098902. Anyway, it seems to turn-over well, has fuel and good spark, compression of 95+psi whilst pulling the cord, however won't fire. The spark seems rather wet, I'm wondering whether this unit has adjustable valves etc.. which may be causing the problem.... what should normal compression on these 4 strokes normally be?