3 replies to this topic

[jmhanep]

Since taking delivery of the boat the Stbd engine at WOT shows 7200-7300 rpm while the Port has always shown 7500-7600. Occasionally the Stbd engine will turn the same 7500-7600 rpm but not very often. Boat has been put on computer and shows the throttle position to be the same as the other engine. Looking for any input. According to the new Gafrig GPS speedo I installed the boat peaks at 60.2 mph with 3/4 tank and 2 adults but only does this when both engines are at the 7500-7600 rpm reading other wise the speed drops to 58.6.

Mike

[mrjon53]

this post will be no help, but on my first run last weekend, i noticed when cruising around 5500 rpm range that the left engine was lower than the right on average of 200 to 300 rpms as well. i would increase this trottle to match the right side, but i am still in the break in phase and wasn't sure yet if i should be concerned.

[stevenh]

Since taking delivery of the boat the Stbd engine at WOT shows 7200-7300 rpm while the Port has always shown 7500-7600. Occasionally the Stbd engine will turn the same 7500-7600 rpm but not very often. Boat has been put on computer and shows the throttle position to be the same as the other engine. Looking for any input. According to the new Gafrig GPS speedo I installed the boat peaks at 60.2 mph with 3/4 tank and 2 adults but only does this when both engines are at the 7500-7600 rpm reading other wise the speed drops to 58.6.

Mike

I think 7300 is the normal max RPM's for the 155HP engine. The SC one is will rev to 7500-7600RPM and the SCIC will go to 8000RPM. Do you have the 155's or 185's?

Steve

[jmhanep]

Steve, I have the 185 hp engines which according to Sea Doo should red line around 7600 which the Port does all the time but the Stbd. only occasionally.

Mike