answersLogoWhite

0

In the early 1970's, when you could still get good gasoline, outboard compression in the 180-190 psi range was common. If your 65 hp Johnson is running in the 100-150 psi range, this would be acceptable, and the engine should still perform well on todays fuel. The important thing to note with compression readings however, is that the difference between the highest and lowest reading, is no more than 15 psi. One more note, avoid fuels containing alcohol if at all possible.l

User Avatar

Wiki User

15y ago

What else can I help you with?

Related Questions

What year was this Johnson outboard motor made serial j3853152 model 65esl73r?

Model number 65ESL73R would be a 1973 model, 65 hp Johnson outboard.


What year is a Johnson Outboard model number 65373R?

65373R is 1973 3cyl 65 hp evinrude/johnson


How much is a 1968 65 HP Johnson Outboard motor worth?

I reckon about £400-£500 if in decent condition


What year would a mercury 650 outboard with the serial number 7039331 be?

A Mercury 65 hp outboard, serial number 7039331 would be a 1974 year model.


Vxhl-14b what year is this?

Model number VXHL-14B would be a 1968 model, 65 hp Johnson outboard.


What if there's no compression on KTM 65?

No compression means time for a rebuild.


What direction does the fly wheel spin on a 1977 jhonson 65 hp boat motor?

On a 1977 Johnson 65 HP outboard motor, the flywheel typically spins in a clockwise direction when viewed from the top. This rotation is standard for most outboard motors, allowing the engine to operate efficiently. Always refer to the specific service manual for detailed information on your motor's operation.


What does a 1957 Johnson 7.5 hp outboard motor weigh?

A 1957 Johnson 7.5 hp outboard motor typically weighs around 60 to 65 pounds (27 to 29 kg). The weight can vary slightly depending on the specific model and any additional equipment or modifications. This lightweight design made it suitable for small boats and easy to handle for transportation.


What is the fuel ratio for a 65 hp Mercury Outboard?

50 - 1


What year is a 65 hp mercury outboard motor serial number3814258?

1958


How can you Decipher mercury outboard serial number 4266564 650?

An 65 hp Mercury outboard, serial number 4266564 is a 1975 year model.


What year is Mercury outboard 65HP serial number 3149254?

A 65 hp Mercury outboard, serial number 3149254, is a 1971 year model.