Throttle testing?

[CK Egret]

Is there a way to test if you throttle is opening all the way by myself?

thanks,

[99yam40]

Since you did not give any info all I can say is Pull the cowling and look

[CK Egret]

Sorry about that, It is a 2002 200 HPDI on my flats boat. I was testing a new prop yesterday on the lake and noticed that there was no RPM difference between one to one and a half inches about the firewall and all the way down to the firewall. With this prop, once I hit 4900 RPM's motor trimmed all the way down, at about 1.5 inches above the firewall that was a much as I could get. I could trim the motor up and get to 5500 at either position.

Hope I explained this correctly. My question is should my throttle open more between 1 inch from max throttle and max throttle?

Thanks for the help.