Redline and gear speeds.
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Speed verified by GPS. unless my RPM gauge is drastically off and reading way lower than it should this is an accurate reading. I'm assuming something has been modified in my drivetrain somewhere.
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At 90mph, your engine is running between 5600 and 6300 rpm. 2001-2004 VL800s used a dual fire ignition, meaning both coils fired at the same time. From 2005 on, the C50 uses a single fire ignition, meaning only the cylinder at TDC of the compression stroke is firing. If your tach is only showing 3k rpm, then you have the wrong tach on the bike. That is expecting a dual fire ignition, but only reading single fire - which is HALF of what the engine is turning in RPM. Sorry to burst your bubble.
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I guess it's possible, but the engine doesn't sound like it's struggling or at higher RPM's. Definitely sounds right for the rev range, and jumps up to 6 or 7k rpms when full throttle is given. I'm leaning towards something else was modified in the drivetrain.
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Considering it's still got over 50% of the rev range left when I open the throttle, I beg to differ. It still climbs A LOT when I open it.
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21,606 Posts
A bike with the modified C90 drive will have obvious machine marks where the old shock mount was ground off, or to make the fake swing arm fit. Other than that, the only way would be to pull the drive and look for the tell tales - shortened driveshaft modified shoulders on the end, etc.
The C90 drive only lowers the rpm by around 10% at a given speed. It makes things more comfortable, but it doesn't eliminate the vibrations.
The C90 drive only lowers the rpm by around 10% at a given speed. It makes things more comfortable, but it doesn't eliminate the vibrations.
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