My '86 Yam 70 hp has become so reluctant to start, that now it's a no go, unless I give it a shot of WD40 into each of the 3 carb throats. then it fires up good. The choke mech. clicks when the choke switch is engaged, but for some reason the motor doesn't get that priming snort.<br />Gas-good, priming bulb-hard, plugs-good. What am I missing here?<br />Nevrdun.