1975 70 hp evinrude compression check

[fishngal23]

On my 1975 70 hp evinrude the comp. on the first cylinder reads 120 the second read 120 the third cylinder read about 95 is that normal or should they all read the same. thanks for any info.

 

[KYHunter2]

Re: 1975 70 hp evinrude compression check

95 is a bit low. Do a decarb , and retest. They should be within 10-15 percent of each other.<br /><br /> Good-Luck,<br /><br /> KYHunter

 

[fishngal23]

Re: 1975 70 hp evinrude compression check

Originally posted by Ramona:<br /> On my 1975 70 hp evinrude the comp. on the first cylinder reads 120 the second read 120 the third cylinder read about 95 is that normal or should they all read the same. thanks for any info. could this cause the engine to sputter when idle or throttling?

 

[tashasdaddy]

Re: 1975 70 hp evinrude compression check

yes, did you do the decarb?

 

[fishngal23]

Re: 1975 70 hp evinrude compression check

i will do the decarb thanks for the info