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Hey fleetwin, thanks for reaching out. Really sorry to hear about Dan going through a difficult time, thanks for the update. I hope better days are heading his way soon. Though I dont know him personally outside of the online boat community, he sure seems like a great guy, always been so friendly and helpful to me. I appreciate your detailed response here fleet, and I will do my best to address each point the best I can. Thanks for taking the time to check out the fiberglassics thread. A few of the things you mention here really hit a few chords for me. So lets get started;
First off, yes I premix. The motor did come with the oil injection tank so you dont have to premix. However the previous owner had it disconnected by a marine shop, as they warned him that if the system stopped working he could easily destroy the engine quickly.
Your next question was regarding the last time the engine ran well. Last year was my first season with this rig (had a merc before) and it pretty much behaved the same almost every time out, with one exception; my lake powell trip during september. Although it didnt run perfect, it was the best I had seen. No acceleration issues, just a bit of difficulty starting and idling but not near as bad as normal. Lake Powell is quite a bit lower in altitude than my normal lakes.Its around 3700 ft vs the 7 – 10,000 ft range of my "home" lakes. Also it was near 100 degress for most of my trip to powell and the water temp was around 80. This may have made it run warmer. So it could have been either, the lower altitude or the warmer operating temp that helped it run smoother.
I did not change anything in the carbs, just pulled em off and apart, cleaned up and reinstalled. Ran exactly the same after, and during the toothpick tests, which I tried a few different times.
It definitely has a little sneeze/cough thing happen when it conks out.
I do believe it develops full power, but coudnt be certain. It turns (to the best of my memory) close to 5 k when at WOT/full speed. We usually wakeboard with it around 28- 3100 rpm. Speedo isnt hooked up so I cant correlate anything with speed. But with a gps app on my phone I got a reading of 35 (ish) mph while at one of my "home" lakes. I also beleive it does have the correct prop. Its a aftermarket (michigan) 14 1/2 x 17 RH. Model #013002.
I have not compression tested the motor yet. Seems kinda silly I know. Dan had recommended I try other things before compression testing, which I usually do to any motor vehicle I purchase. I will be giving it a go soon here. I will definitely post the results of that here.
I certainly have been curious about synchronizing, as that seems like a distinct possibility. I do not currently own a timing light, or a TDC tool, which looks easy enough to come by, but those CDI lights are seriously expensive.
The gaskets in my carbs were tan, so they are the "new" ones.
Im not sure about the "quickstart" feature either.
I like your approach here, and I will do my best to follow through with each step. I will start with the compression test, from there I will (hopefully!) try to sync. I will probably need some hand holding to get me through that part !
Thanks again fleet. I appreciate your time, knowledge and help. I will post back on here later today or in the next couple of days.
Kind Regards,
mtntrogger