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I've read about cleaning the switches and I'll probably give that a try, but the insulation on the wires appears to be deteriorating as well. It sounds like this is a pretty involved operation, so I don't want to do it twice. Probably well worth the expense to get the OEM stuff the first time...

I'm pretty sure I've got a flakey trim limit switch, so I'm shopping for parts online. I'm seeing prices for a pair of switches anywhere from $25 to $150. Is there that much of a difference in quality? What are some good, reputable online vendors? Thanks.

Slow reply, but I've been out of town all week. I took a look, and my engine has electronic ignition. I pulled the cap, and the rotor and contacts show some use but don't look to bad. I think I'll run them in the spring and see if other things I've addressed did the trick. I am glad to hear I...

Well, aside from failure to find one grease zirk, I think I'm fully winterized. One other unexpected issue did come up. I was going to repack my trailer's wheel bearings, and it turns out they're totally cratered. It's possible the original 1991 grease is still in there, and it took on some...

Access is extremely tight, but I can feel the back of the engine and the drive shaft most of the way to the transom. I can see most of it too, but I can't find any zirks. The boat wins this one. I can admit when I'm beat.

Yup. I could see the driveshaft, and it was greasy. Someone's been able to get in there before. Looking at the diagram above from Bill, it looks like the zirks poke straight back out of the coupler. Those could be hidden in my boat, but I should be able to feel them. I'll let you know how it goes.

Thanks guys. I was in the right area but couldn't spot the zirk(s). I might have to do this by the brail method. I have a remote start button so I can bump the motor with no danger of it starting. I had made several revolutions yesterday with a flashlight in the general area, but no success...

I'm an idiot. Still can't find a zirk for the coupler splines. Are you getting to this from inside the boat or outside? And where's the access hatch you mentioned? I'm not finding anything in the manual (or on Youtube) to point me in the right direction. One more question (I promise). My trim...

Yup. I checked the label. It's propylene.

I've inserted some responses in blue font above. As always, thank you for your help!

Thanks LD. The guy I bought the boat from (short term PO, not the original owner) told me he had been running 87 octane fuel. In this area, that means ethanol. I ran it down to about 1/4 tank and then filled with 91 ethanol free and added marine stabilizer. I got most of the way through...

Thanks for posting the service manual. It's A LOT more detailed than the little paperback brochure that came with the boat. And flipping through it, I may have stumbled onto something. In the troubleshooting section, one of the potential causes of bad high speed performance is an overfull...

I had already ordered plugs, fuel and oil filters and a carb kit. The carb doesn't look any too clean, and it felt like a fueling issue to me, so that's where I had intended to start as well. I had also pulled the plugs, and they looked good but they were gapped at .050". I believe spec is .035"...

Thank you Pirate Lady. I learned a lot reading that post.

The prop number is kind of hard to read, but it looks like: 48 832830A45 19P. I suspect the 19P is the important number. Looks like that's the factory pitch for my model.

First of all, thank you for the quick replies! I really appreciate it. Yes, it seems to pull nicely right off the bottom. I played with the trim and was able to make improvements. In the end I trimmed up until it started to porpoise and then backed off a bit for best results. It just seems to...

Yes it does. It says 4200-4600. That's why I suspected I might be bumping up against the limiter, but I didn't think I was quite there. Also, the tach starts to jump around quite a bit above 4k, so it's hard (impossible) to tell what's really going on.

New Sea Ray owner here. Last weekend I sold my WaveRunners and bought this: It's a 1991 170BRLTD with a 3.0 Merc and Alpha One. Got it just in time to take it out once to make sure it runs and then learn how to winterize it. It's a little older than I wanted, but we looked at quite a few and...