DiveMode
New Member
Hello all happy boaters!! :cheers:
Guys- I've got a 96 speedster twin 717 and I'm wondering if ya'll can help... my port side engine runs higher RPM's than the starboard side, at WOT the port engine runs about 800-900 RPM higher. Also, when I take off on the hole shot, the port side will run up to 7000 while the starboard only hits around 6000. You can hear the difference in the engines when take off, but once the boat planes out the engines sound "tuned"... however, the RPM's are different. If I adjust the throttles so the RPM's read the same, the engines lose their 'tuned' sound and the boat will turn to the left slightly. Also, the idle speed on the starboard side is about 200 RPM lower than port.
1st ? - What should the idle speeds be set for these engines?
2nd ? - What things should I look for to tune these engines together?
(same RPM's, same thrust power)
3rd ? - I've heard about cavitation... could one side be cavitating and if so,
how do I check that out?
Thanks for the help gentlemen... will be checking back soon to see what advice ya'll have!!
Guys- I've got a 96 speedster twin 717 and I'm wondering if ya'll can help... my port side engine runs higher RPM's than the starboard side, at WOT the port engine runs about 800-900 RPM higher. Also, when I take off on the hole shot, the port side will run up to 7000 while the starboard only hits around 6000. You can hear the difference in the engines when take off, but once the boat planes out the engines sound "tuned"... however, the RPM's are different. If I adjust the throttles so the RPM's read the same, the engines lose their 'tuned' sound and the boat will turn to the left slightly. Also, the idle speed on the starboard side is about 200 RPM lower than port.
1st ? - What should the idle speeds be set for these engines?
2nd ? - What things should I look for to tune these engines together?
(same RPM's, same thrust power)
3rd ? - I've heard about cavitation... could one side be cavitating and if so,
how do I check that out?
Thanks for the help gentlemen... will be checking back soon to see what advice ya'll have!!