Come join the discussion about troubleshooting, classifieds, performance, modifications, maintenance, and more! Jump to Latest Follow 1 - 5 of 5 Posts ... 2005 Yamaha Raptor 350 10:1 Wiseco Piston 366cc bore High Performance Valve Springs Rev Max CDI ... Raptor 700 Modifications Raptor 700 Discussion General 660 Discussion Raptor 660 Modifications Raptor 660 Maintenance. The Raptor 660R was replaced in 2006 by the totally redesigned Raptor 700R (686cc).. Full Forum Listing. Hotcams valve clearance specs 700R. You can get a false reading because you can easily compress the valve spring. Valve Clearance. 08 raptor 350 valve clearance. 69 Posts . You want to use a go / no go method. Share more about your favorite model including the: Yamaha Raptor 700, Raptor 660, Raptor 350, Raptor 250 as well as the smaller Raptor 50, 80 and 90. Specifications A forum community dedicated to Yamaha Raptor ATV owners and enthusiasts. .Insert a feeler gauge 2 between the adjuster end and the valve end. Come join the discussion about troubleshooting, classifieds, performance, modifications, maintenance, and more! .Hold the adjuster to prevent it from moving Jump to Latest Follow 1 - 3 of 3 Posts. Share more about your favorite model including the: Yamaha Raptor 700, Raptor 660, Raptor 350, Raptor 250 as well as the smaller Raptor 50, 80 and 90. anyone have done it ? Explore Our Forums. AL2FAST ... performance, modifications, maintenance, and more! .Turn the adjuster 3 clockwise or counterclockwise with the tappet adjusting tool 4 until the proper clearance is obtained. Share more about your favorite model including the: Yamaha Raptor 700, Raptor 660, Raptor 350, Raptor 250 as well as the smaller Raptor 50, 80 and 90. Here are your specs: Valve clearance (cold): Intake: 0.10 ~ 0.15 mm (0.0039 ~ 0.0059 in) Exhaust: 0.15 ~ 0.20 mm (0.0059 ~ 0.0079 in) When you go to set them, make sure you do not force the feeler gauge under the rocker arm. It has an engine displacement of 660 cubic centimeters, a compression ratio of 9.2:1, and a dry-sump lubrication system. Specifications Torque Specifications VIN and Engine Number Location Special Tools. hi all well i am looking for the way too adjust my valve clearance on my Rhino 660,2006. the dealer tolded me that cannot be done because of a " decompressor" on the engine?? Get the latest Yamaha Raptor 660R reviews, and 2005 Yamaha Raptor 660R prices and specifications. I finally got around to adjusting my valves last night and there wasn't any clearance at all. ADJ ADJUSTING THE VALVE CLEARANCE 8.Adjust: . Recommended Communities. The Yamaha Raptor 660R is a sport all terrain vehicle made by Yamaha with a 660cc, single cylinder, five-valve, four-stroke engine.It is designed to perform well in every riding condition. i have 13,000 km and by what i heard it never have … VALVES AND VALVE SPRINGS CHECKING THE VALVE AND VALVE SPRING 1.Measure: Stem-to-guide clearance Stem-to-guide clearance = valve guide inside diameter a – valve stem diameter b Out of specification → Replace the valve guide. A forum community dedicated to Yamaha Raptor ATV owners and enthusiasts. Yamaha Raptor 660 Specs Engine – The Raptor 660 uses a four-stroke, liquid-cooled, single-cylinder SOHC engine with a bore-stroke ratio of 100 × 84 mm (3.94 × 3.31 inches). 2005 Yamaha Raptor 660R Reviews, Prices and Specs. Valve clearance ***** Adjustment steps: .Loosen the locknut 1. Discussion Starter • #1 • Jun 19, 2003. Yamaha sold the Raptor 660 from model year 2001 through 2005. 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