yamaha 500 no power

[caplbi]

have a 1988 yamaha wr500.Starts fine and seems to run ok out of water with the hose on, but last week in the water it started to bog down and loose power.I changed the plugs,did a compression test,(150 in each cylinder),tried to adjust carb, seems ok,not sure if its a gas or electrical problem. Any suggestions?

 

[AaronG]

Re: yamaha 500 no power

Two things to check, make sure the intake grate isn't plugged with seaweed/trash. Also, make sure you don't have an exhaust leak filling the engine compartment with exhast.