mercruiser 170

[Cwalton]

Im having a starting issue and cant figure out whats going on. Replaced the battery and when you go to crank the motor over it cranks very slow. It doesnt have enough power to crank it fast enough for the motor to start

 

[guyjg]

Try cranking it w/the spark plugs out. If it cranks faster you need a starter--it can't overcome the compression. Let us know if water comes out of the plug holes.

 

[Bt Doctur]

Also check BOTH ENDS of the battery cables

 

[Cwalton]

alright i will try both of those ideas and get back to you guys