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What should a 1966 80 hp Johnson seahorse compression be with all plugs out and cold?
120 psi
What should the normal compression be on a 1997 Johnson 15 hp outboard motor?
between 90-120
How much does 1990 50 hp Johnson weight?
The 1990 model, 50 hp Johnson has a listed dry weight of 180 - 218 lbs. depending on the model.
How old is your Johnson outboard 4 hp model J4RDHESR?
Its a 1990
What year of a 3.0 hp Johnson serial b 8479030 model j3bresr?
A 3 hp Johnson outboard, model number J3BRESR would be a 1990 year model.
What is the weight of a 1975 model 85 hp Johnson outboard motor compared to a 1990 model 140 hp Johnson outboard motor?
I have a Johnson 85 hp model no 85ESL75E 1975 longshaft low profile powershift II and it weighs 180kg apparently
Compression for 6.0 hp Briggs and straton?
It should be at least 70 psi
What is the cylinder compression on a 16 hp onan engine?
Should be 110 PSI
What should the compression be at on a 150 hp mercury outboard motor?
I should be equal on all cylenders and about 110 to 120
What should the compression be for a 50 hp 4 stroke Mercury outboard motor?
125 is the least
What is the compression for a 1974 Johnson 65 hp outboard?
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
What should the compression rating be on a FC420V kawasaki 14 HP small engine?
minimal 71 psi
