vandenburgh
Contributing Member
Decided best i start a new thread with appropriate title...this is continuation of other thread just posted by Vandenburgh, hopefully the right call.
Update: I finally got the boat on the water today at the lake cottage so I could move beyond test barrel. Happy that engine started and idled fine, but downhill from there. Engine wouldn't hit full rpms. Didn't get too far trouble shooting as starter failed (hopefully just dead battery, but not too confident, but battery is on charger overnight). That said, before starter issue I checked and adjusted link and synch and believe that part is ok..this is how synch is working...butterfly just begins to open as marks on cam passes pointer on intake manifold as throttle is applied and continues to open as follower tracks cam as throttle is increased. when near end of cam, and throttle is pushed to WOT, butterfly fully opens....hopefully that part is right. After adjustment, tried engine again, and same issue.
So starts fine and starts out fine as throttle applied, but never reaches full power...it never fully planes boat off and it did so when last running season before last (wasn't in water last season), like it isn't getting full throttle. As a lark, I disconnected bottom cylinder to see if boat operated same way as when both were connected, and it showed same behavior whether bottom spark plug wire attached or not, so I am thinking bottom cylinder not firing at all but not sure and maybe it is something else, but thought I would mention. That is as far as I got, before my starter began acting up and not engaging (solenoid clicks, starter groans and spins a bit, but does not fully spin up)
Assuming I can get starter working (battery now on charger), what is recommended steps to trouble shoot engine not reaching full power? For now, I would like to assume compression ok as I don't have my tester with me and here through the coming weekend...and boat ran ok at WOT, maybe 20mph or so, last time on water couple seasons back at end of season).
I assume i should check status of spark on bottom cylinder as my next step. Any suggestions for next steps would be welcome as I contemplate situation while battery charging overnight (keeping fingers crossed starter hasn't gone bad!)
Update: I finally got the boat on the water today at the lake cottage so I could move beyond test barrel. Happy that engine started and idled fine, but downhill from there. Engine wouldn't hit full rpms. Didn't get too far trouble shooting as starter failed (hopefully just dead battery, but not too confident, but battery is on charger overnight). That said, before starter issue I checked and adjusted link and synch and believe that part is ok..this is how synch is working...butterfly just begins to open as marks on cam passes pointer on intake manifold as throttle is applied and continues to open as follower tracks cam as throttle is increased. when near end of cam, and throttle is pushed to WOT, butterfly fully opens....hopefully that part is right. After adjustment, tried engine again, and same issue.
So starts fine and starts out fine as throttle applied, but never reaches full power...it never fully planes boat off and it did so when last running season before last (wasn't in water last season), like it isn't getting full throttle. As a lark, I disconnected bottom cylinder to see if boat operated same way as when both were connected, and it showed same behavior whether bottom spark plug wire attached or not, so I am thinking bottom cylinder not firing at all but not sure and maybe it is something else, but thought I would mention. That is as far as I got, before my starter began acting up and not engaging (solenoid clicks, starter groans and spins a bit, but does not fully spin up)
Assuming I can get starter working (battery now on charger), what is recommended steps to trouble shoot engine not reaching full power? For now, I would like to assume compression ok as I don't have my tester with me and here through the coming weekend...and boat ran ok at WOT, maybe 20mph or so, last time on water couple seasons back at end of season).
I assume i should check status of spark on bottom cylinder as my next step. Any suggestions for next steps would be welcome as I contemplate situation while battery charging overnight (keeping fingers crossed starter hasn't gone bad!)