Hi There,
I saw in the archives two users who had this problem and wanted to post the solution for future users cause it took me a while to figure out.
I have a 5 year old Yamaha F115 four-stroke (very similar to the F90 and F150) with low hours (less than 300) and it was having trouble starting. When I turned the key I'd hear a click (the starter relay, so the key switch was good) but it would either not crank or delay a second or two before cranking.
On my engine, I noticed that the little gear (called a bendix) that rises to connect the starter motor to the flywheel was rising very slowly or not at all. The solenoid make's that rise by acting on a piston with an electromagnet. The grease around the piston in the solenoid had dried an gone sticky. A quick clean with some WD40 and new grease and voila – good as new. I hear other common causes of this are corrosion on the battery connections and weak batteries.
Hope this helps someone else.
Regards,
Trent
I saw in the archives two users who had this problem and wanted to post the solution for future users cause it took me a while to figure out.
I have a 5 year old Yamaha F115 four-stroke (very similar to the F90 and F150) with low hours (less than 300) and it was having trouble starting. When I turned the key I'd hear a click (the starter relay, so the key switch was good) but it would either not crank or delay a second or two before cranking.
On my engine, I noticed that the little gear (called a bendix) that rises to connect the starter motor to the flywheel was rising very slowly or not at all. The solenoid make's that rise by acting on a piston with an electromagnet. The grease around the piston in the solenoid had dried an gone sticky. A quick clean with some WD40 and new grease and voila – good as new. I hear other common causes of this are corrosion on the battery connections and weak batteries.
Hope this helps someone else.
Regards,
Trent