Good compression for Honda BF5?

[dc47]

What is good compression for Honda BF5?

My motor tested 80 psi. Pretty sure this isn't good, but thought there is a chance this is normal? Does anyone know?..

 

[hondon]

Re: Good compression for Honda BF5?

Compression tests on these engines needs to be accomplished at wide open throttle which means you will have to cheat the neutral lockout.80 PSI is not nessarily bad.What is this engine not doing that you want it to do?

 

[dc47]

Re: Good compression for Honda BF5?

I went as far as taking off the carb to make sure the engine was getting wide open throttle. It runs and idles well, just thought that 80psi was a poor reading.

 

[dc47]

Re: Good compression for Honda BF5?

Here is the answer to inform anyone that has the same question I did. 120psi is about a high a compression you will get with a Honda bh5. If it is below 70psi then you should probably do a leak down test to find a possible problem. Mine is 80psi and the Honda Technician told me that it is fine and pulling the motor apart is not necessary, it still has a lot of life left in it.