Page 10 of Motorcycle and ATV Racing Parts & Accessory 2007 by Ron Wood Racing Products

yamaha 450 performance parts services click here to jump back to quick links stage one ­ 28 increase in power complete race or quiet core exhaust system prejetted mikuni tm42 smooth bore flat slide carburetor thumb throttle cable freeflow air induction system k&n filter stage two ­ 38 increase in power includes all stage one parts plus high compression forged cp piston assembly designed to our specifications to work with stock head with rings wristpin and circlips high performance billet camshafts cams to be exchanged dual valve springs with titanium retainers head gasket and base gasket stage three ­ 61 increase in power includes stage one plus complete rebuild of customer head for high performance remove existing valve seats machine valve seat pockets and install new oversize seats to accommodate three 29mm intake and two 30mm exhaust titanium valves machine and install intake port spigot for prejetted mikuni tm45 flat slide smooth bore carb and thumb throttle cable head is ported to our specifications bronze guides are installed with a racing valve job high performance cams are supplied on an exchange basis high compression forged cp piston assembly designed to our specifications to work with modified head with rings wristpin and circlips titanium valve spring retainers new valve seals head gasket and base gasket are included yfz 450 dealer and retail prices · · · · · stage i thumb $1,100.00 stage ii thumb 2,031.00 stage ii upgrade 992.50 stage iii thumb 5,021.00 stage iii big valve head work only 2,990.00 sleeve port head for 45mm carb replace seats for three 29mm intake and two 30mm exhaust titanium valves install bronze valve guides and lap valves · twist throttle and grips $27.90 price of cable included in kits 10

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