With a Haynes Manual, you can do it yourself, from simple maintenance to full repairs. Every Manual is based on a complete stripdown. Our authors and technicians work out the best methods to do a job and present this with the home mechanic in mind. Our Manuals have clear instructions and hundreds of photographs that show each step. Whether you're a beginner or a competent mechanic, you can save money with Haynes., Each Manual includes:, Clear and easy to follow page layout, Full procedures written from hands-on experience, Easy-to-follow photos, Faultfinding information, How to make special tools, Colour wiring diagrams (where available).Specific Models Covered:GS250T 249cc 80-84; GS450E 448cc 79-83 USA; GS450L 448cc 80-85 USA; GS450S 448cc 79-81 USA; GS450T 448cc 80-82 USA; GS450TX 448cc 81-83 USA; GSX250E 249cc 80-85 UK; GSX400E 399cc 80-85 UK; GSX400T 399cc 81-84 UK.