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Author Topic:   best set up for a 15 sport to ski
chrisb posted 08-25-2002 11:13 PM ET (US)   Profile for chrisb   Send Email to chrisb  
I want to re power my 78 sport to get my 180-200 lbs friends up on one ski. It seems the 70 yam 2 cycle is the way to go since I only can use it 3 months a year on my 125 acre pond in vt. There are some rocks that my kids will probably hit in 5-10 years so I'm thinking aluminum prop. I dont need speed except skiing, and I'm too time constrained to do much adjusting. What is the concenses on having the dealer put on a jack plate since I'm unlikely to ever adjust it? And can the hydraulic steering or controls from the johnson 48 be reused? Should I get a tachometer?
russellbailey posted 08-26-2002 07:30 AM ET (US)     Profile for russellbailey  Send Email to russellbailey     
I hope your friend is either a really good skier or using a big ski, as you are at the limits for a 70 hp engine.

With our 15', Evinrude 70, 68" World Team Comp (not a small ski), and 170 lb solid slalom skier, we use a 13x17 aluminum and it works ok. The Doel Fin helps noticeably. A 13x15 helps also but is not very good for cruising.

I would definitely go for the most powerful 70 hp you can find, and really I'd look at the 75 or 90 Merc 2-stroke. These are much more powerful - I've considered the same for skiing but want a 4-stroke next time.

Check with your state about rules, but as far as federal laws it is fully legal to exceed the hp ratings - check the archives for more details. The one time that I (value judgement) think it makes sense is when you are mainly skiing with the smaller (13/15) boats.

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