no start. getting strong spark to both cylinders. will only hit if hold throttle wide open and use ether removed carb & reed valve & inspected. no trash in carb.shoots good primer shot of fuel when pull choke out. keyway looks good at flywheel. changed plugs . changed fuel. compression is 110 on top cylinder 80 on bottom<br />i know bottom is low but should this keep it from starting bottom plug seems to be loading more with fuel than top engine was running fine last trip out until i slowed down. didnt wont to idle so i throttled wot & it bogged & hasnt started since model#102557 ser#0b173240 about a 1985 year model 25 horse with jet drive.
