Big bore cylinder head - Required for 72mm big bore kit. Big bore power valve kit - Required for 72mm big bore kit.Runs on pump or race gas. Compatible with all 2001+ Yamaha YZ250 two stroke bikes. Do you need this installed on your vehicle? Give us a call, visit us on the web, or come in to our Upland, CA location.
We have been providing the best in parts AND service for your powersports vehicle for over 20 years. PRICES AND LISTINGS ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE. DO YOU MAKE A LIVING WORKING ON BIKES?
ARE YOU A SHOP OR DEALER. PRICES ARE SUBJECT TO CHANGE AND LISTINGS MAY BE REVISED AT ANY TIME WITHOUT NOTICE. 99% of problems can be easily solved without returning the entire order. Once items have been modified, installed, or used in any way they are not eligible for return. Unless otherwise stated, we stand behind all parts we sell 100%.
This product is NOT DIY. Over 99% of people in the world are not qualified to build an engine, and it is the responsibility of the person doing the work to ensure the parts work correctly. Recommend parts be installed by a qualified, experienced mechanic.
Also, we want information from customers when their experience is less than desirable so we know what areas need improvement the most. Please work with us and we will ALWAYS work with you.