15hp yamaha

i have a 15hp yamaha i went to run it today it was pumping water perfectly fine in neutral and reverse but when i put it in forward gear it would stop pumping water and overheat the engine light would come on and id shut the engine off.any ideas as to what is causing this?

Click here to post comments

Join in and write your own page! It's easy to do. How? Simply click here to return to FISHING and BOATS FORUM.