The horsepower was measured at the rear wheels on a chassis dynamometer in a 2001 edition of Dirtwheels magazine when the bike was introduced onto the scene. The dyno test resulted in 38 hp measured at the rear wheels. This translates to 44 - 45 hp measured at the crankshaft when using the usual drive train efficiency of 85%.
California models will produce slightly less do to emissions restrictions. CT Racing ran a California model on a chassis dynamometer and it produced 33 hp at the rear wheels. This can be seen on CT's website. After modifications were made to the California edition, the power figures were consistent with power produced by non-California models.
The Yamaha Raptor 660 is a motorcycle that was made by Yamaha between 2001 and 2006. One can purchase a second-hand Yamaha Raptor 660 at a used Yamaha dealer.
The Yamaha Raptor 660 stock has 43hp.
The Yamaha Raptor 660 is a single cylinder.
Yamaha sold the Raptor 660 from model year 2001 through 2005. They then redesigned the Raptor 660R in 2006 released it as a Raptor 700R.
by the shifter
2005
The 2002 raptor 660 will go 100mph tops.
The engine number on a 2003 Yamaha 660 Raptor is located on the engine casing. It is found on the top and on the lower left hand side.
About 39 hp
You can buy a Yamaha Raptor 660 at a local Yamaha dealer. These bikes are also sold online at Ebay Motors and Auto Trader. You can purchase a used or new bike at any of these places.
Yamaha dealer, or you can look at it for free on the internet.
The Yamaha Raptor 660 takes 3 Quarts 4-Stroke Oil or 10w/40.