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mrlmd1 · 05-24-2012, 10:27 AM

If the clutch were slipping you would hear that and feel it. Doubtful that's a problem. And your gas mileage and performance would suffer a lot.
You are only looking at about a 7% difference at 65mph from theoretical and what you are measuring. It's not 1500 rpm/10 mph, it's 1070rpm/10mph - your math is incorrect. I would say you are searching for a problem which doesn't exist and is a characteristic of your bike. I'm not sure everyone else in the world gets exaactly 6500rpm at 65 mph.
If your bike rides and runs fine and mileage is OK, performance is OK, leave it alone and disregard or get rid of the tach so you don't look at it. There was nothing wrong with the bike before you had to put that on, and there is nothing wrong with the bike now. You don't like the numbers. don't look at them. Or run some carb cleaner through the gas, check your tires pressures, make sure your brakes aren't slightly grabbing.

05-24-2012, 10:27 AM	#10
mrlmd1 Senior Member Join Date: Jan 2008 Location: Crawfordville, Florida Posts: 2,853	Re: tach off by 500 rpm If the clutch were slipping you would hear that and feel it. Doubtful that's a problem. And your gas mileage and performance would suffer a lot. You are only looking at about a 7% difference at 65mph from theoretical and what you are measuring. It's not 1500 rpm/10 mph, it's 1070rpm/10mph - your math is incorrect. I would say you are searching for a problem which doesn't exist and is a characteristic of your bike. I'm not sure everyone else in the world gets exaactly 6500rpm at 65 mph. If your bike rides and runs fine and mileage is OK, performance is OK, leave it alone and disregard or get rid of the tach so you don't look at it. There was nothing wrong with the bike before you had to put that on, and there is nothing wrong with the bike now. You don't like the numbers. don't look at them. Or run some carb cleaner through the gas, check your tires pressures, make sure your brakes aren't slightly grabbing.
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