I have a 2005 and compression should be close to 120 psi. Normally a good engine will have compression between 115 and 130 psi but a leak down test should be performed also to know the full condition of a cylinder.
The spark plug gap for a 2003 Mercury 125hp outboard motor is .040"
where can i find an owners manual for a 2003 75HP mercury outboard
What is the correct spark plug gap setting for a Mercury outboard 2003 200 HP EFI
My 2003 3.3hp outboard motor is 50:1 mixture.
No compression could mean a blown head gasket, cracked head or cylinder.
Mercury quicksilver premium TC-W 3 or equivilent
Cylinders compression pressure Sentra 1.8 : 192 psi
78 lbs, as I assume it is the same as a '99 model
Yes everything I tried been to big
Coil pack and the spark plug- check compression
The dry weight of a 1994 model, 15 hp Mercury 2 stroke engine, is 71 lbs, for all models.
For a 2003 115hp 4-stroke Mercury outboard, a marine starting battery with a minimum of 650 CCA (Cold Cranking Amps) is typically recommended. A group size of 24 or 27 is often suitable, but it's important to check the owner's manual for specific recommendations based on your outboard's requirements. Additionally, ensure the battery is designed for marine use to withstand the harsh conditions.