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			I have been looking to find out what the prop I got on my V-21 200 Yamaha. The stamp on it is 19M  I get the 19 but what does the (M) stand for? It runs 48.7 Miles Per on the GPS at 5200 RPM IS this good or should I be looking for a diff size? 
		
		
		
		
		
		
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	93 V-21 200/9.9 Yamaha  | 
		
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