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			#1  
			
			
			
			
			
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			the new Yamaha 200 weighs the same as the 150, they are both four cylinders now.
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			#2  
			
			
			
			
			
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			 hey spares my mate said he was told that they build up salt on the oil cooler and there is some anodes on the engine block behind some plate he wants to check and replace them I need to do it for him anything I need to look out for
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			#3  
			
			
			
			
			
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			I haven't worked on the new 200's yet, so I don't know about any oil cooler, as far as I know the 150's don't have a separate oil cooler, they do have a fuel cooler that runs vertically on the fuel rail that I've seen stopped up before. Ya'll may get a different version down under than we do. Yamaha has those small anodes all over the block, make sure you get new gaskets for them and clean the holes out go, I use Mercury perfect seal on the gaskets when i put them back together, if it leaks, it will be spraying salt all over your engine. if you are going that far, I'd recommend replacing the thermostat while your at it
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			#4  
			
			
			
			
			
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			#5  
			
			
			
			
			
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			So whats the difference now if the have the same PHead.......CPU output?
		 
				__________________ - The charm of fishing is that it is the pursuit of what is elusive but obtainable, a perpetual series of occasions for hope. Lucky Jack - .......The Surprise is not old; no one would call her old. She has a bluff bow, lovely lines. She's a fine seaboat: weatherly, stiff and fast, very fast, if she's well handled. No, she's not old; she's in her prime. 85' Wellcraft 20 Fisherman "Guale Girl" 1979 Alumnacraft 14 - STILL got holes in it 2006 WS Tarpon160f - "Mudd Butt" | 
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			#6  
			
			
			
			
			
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			The old 150 was already close to 170 at the prop according to several independant tests of teh 150, so I'm sure with some porting changes to the head, intake, exhaust, and a bigger throttle body that 200HP wouldn't be that much of a stretch.
		 
				__________________ 2011 SUNDANCE B20CCR SKIFF, 2011 YAMAHA 90HP 4 STROKE, 2011 KARAVAN SINGLE AXLE ALUMINUM TRAILER, LOWRANCE ELITE-7 HDI, MINN KOTA RIPTIDE TROLLING MOTOR 2000CC HYDRA-SPORT 225+HP EVINRUDE SOLD  AND THE PINK JEEP!!!! R.I.P. http://www.wellcraftv20.com/communit...ad.php?t=11664 | 
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			#7  
			
			
			
			
			
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				__________________ - The charm of fishing is that it is the pursuit of what is elusive but obtainable, a perpetual series of occasions for hope. Lucky Jack - .......The Surprise is not old; no one would call her old. She has a bluff bow, lovely lines. She's a fine seaboat: weatherly, stiff and fast, very fast, if she's well handled. No, she's not old; she's in her prime. 85' Wellcraft 20 Fisherman "Guale Girl" 1979 Alumnacraft 14 - STILL got holes in it 2006 WS Tarpon160f - "Mudd Butt" | 
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			#8  
			
			
			
			
			
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			Variable valve timing
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			#9  
			
			
			
			
			
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			Ive heard to have this checked at 500hrs but a couple of the mechs Ive talked to said they havent had to adjust any that came through the shop yet.  Have you seen/heard any that needed adjustment?
		 
				__________________ - The charm of fishing is that it is the pursuit of what is elusive but obtainable, a perpetual series of occasions for hope. Lucky Jack - .......The Surprise is not old; no one would call her old. She has a bluff bow, lovely lines. She's a fine seaboat: weatherly, stiff and fast, very fast, if she's well handled. No, she's not old; she's in her prime. 85' Wellcraft 20 Fisherman "Guale Girl" 1979 Alumnacraft 14 - STILL got holes in it 2006 WS Tarpon160f - "Mudd Butt" | 
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			#10  
			
			
			
			
			
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			variable vale timing is how they get the extra 50 hp out of the 150, just like the 200/225 vs the 250 Yamaha. You're talking about valve clearance. They told me you had to have it checked at 600 hours, I did three the first year I was in business, its a pain in the ***, my friends with the harbor taxi had theirs checked by me at 2000 hours, it was dead on the money. BTW, they didn't replace the timing belt till they hit 5000 hours, Yamaha paid for it to be done and wanted the old belts back
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