My compression test results

[Broncoboy36081]

Well I got bored and did a compression check on my 99 RSV. Here are the results using my analog gauge

 

Cylinder#1 200-202 psi.

Cylinder#2 200-202 psi.

Cylinder#3 205psi.

Cylinder#4 210psi

 

Bike was luke warm idled about 3-5 minutes.

 

Thoughts and concerns welcomed! They are all well within the spec. Only concern is the one at 210 and rest were around 200-205.

[Peder_y2k]

Cyl #4 might have some carbon buildup on it. Check the spark plugs and see if #4 is darker. Also, the piston rings might be holding more oil creating slightly more compression, and this oil may show on the park plug as well.

-Pete, in Tacoma WA USA

[Broncoboy36081]

Cyl #4 might have some carbon buildup on it. Check the spark plugs and see if #4 is darker. Also, the piston rings might be holding more oil creating slightly more compression, and this oil may show on the park plug as well.

-Pete, in Tacoma WA USA

 

All plugs looked great! I'm pretty sure like a buddy said if I squirted a little oil in it the compression would be higher but they are all within the 10% difference. I will run a little seafoam through it and run her hard. That should help with the one at 210.