is it normal i have 130 psi cold compression test i got a evo 1340 flstf with 10.1 wiseco and ev27 all the rest is sotck i think is a bit low for that modification ?? everething song good no gasket leak run nice

 

I have no idea because I've never checked my compression cold. the book says to check it hot, so that's what I do.

 

Did you have the throttle open?

 

^This^
Should have around 185. Is the top end broken in & rings seated?

 

I had 165 psi with stock pistons with 80,000 miles...

 

no the ring is not yet seated and i did not open the throttle i have to wait for the ring seating process for a good reading?

 

Yea. Don't waste your time with compression checks until after 500 miles, and on a warm engine with the throttle WFO (wide f@%&ing open) during cranking.

 

ok cool man but here i have to wait 1 month because is a bit cold 41'f im so impatient to turn the throttle and see the difference with this set up 10.1 and wiseco ev27 on stock 1340 i think the bike gonna move a bit more loll

 

If they're both the same you're fine, at this stage in your build.

 

yes exactly the same for so it songs good is my first build i like it