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03-27-2015, 04:56 PM #16The Historic Photo Master
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Things to check. Tie-bar set-up/alignment is critical. Slight toe-out at leading edge of the gearcases, for outboard prop rotation, as you have in your photo. Yes, I said toe-out. Everyone else will tell you the opposite, for outboard rotation. Ideally, you want both front and rear tiebars, but if all you have is the rear, that will have to do. Another item to consider is your battery(s) health. If your batteries are not fully charged & able to maintain a full charge, the motors will not produce full power. Down on charge, down on power. Hope this helps.
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03-27-2015, 04:59 PM #17Junior Member
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03-27-2015, 05:34 PM #18
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03-28-2015, 03:30 PM #19
Where in the Bahamas Chucksta? Im over there about a dozen times per year- havent seen any cool performance boats over there except what looked like a 32 Skater converted to a center console down in Stanial Cay
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03-28-2015, 06:12 PM #20Junior Member
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03-28-2015, 06:49 PM #21
13 years ago I had a 21 stallion with 95 200 promax fan 68 to 70 all day long then over the years someone else I know had it and put 300x and I think he ran 90s this boat should be triple digest. Cool boat.
17 ACTION & 19 ACTION
1987 ACTION TVX 200 MERC ( BIG BARNEY MADE A FEW). SOLD
21 STALLION 200 PROMAX BOTTOM FELL OUT. SOLD
2004 21 EXTREME /2003 MERC PRO XB250 .SOLD
1996 STV EURO 260 TO 2004 15' 280 MERC .SOLD
1995 STV EURO 1997 260. SOLD
NEW 21 GREEN EXTREME. SOLD
1998 STV EURO USED TWICE SOLD!
1997 21 SKATER / 300XS SOLD
1987 21 SKATER /15 INCH 300 XS
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03-28-2015, 08:25 PM #22
Just adding when you measure the engines need to be trimmed to the propshaft is parallel to the bottom of the hull. Easiest way it to use a level and adjust the trailer so the bottom of the hull is level then adjust the trim so the propshaft is level.
Also when your testing props if there not in "new" stock condition its really hard to know where your really at. Props get worked, modified, repaired, etc. over the years.13' Biel tunnel AKA "Flight Risk"
13" Modified Yamaha V4 - 101 mph
21' Paramount
Mercury 300 Promax
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03-29-2015, 04:53 AM #23
Here is a very simple method complement of "transomstand" but very affective way to get your reference.
Heck your boat could even be upside down.....
That boat should easily be in the mid 90's with some amazing acceleration......
Good Luck and most importantly be safe!!!!