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Dirt Bike Brands - Other
98 YZ400F, thoughts please
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[QUOTE="azcourt, post: 139875, member: 22942"] Ok, let me tard on some more... After the second catastrophic rod failure of my 98 400 (after I thought putting a 420 kit in it would make it better than a 426) I started calling around looking for answers. Stroker: "You did what to a 98 400, sure it broke the rod, they were barely strong enough for the stock 400 piston. Put it back together with 426 parts and it will be fine". Montclair Yamaha: "Yeah, we made that mistake too. Get yourself a 426, they are a lot stronger and more refined. The 400 definatlly had first year blues. The rod was brittle and had to be changed often like a two stroke". BK (Tim Ferrys mechanic): "426 has better rod design, stronger valvetrain, better suspension, better carburator (I believe he said the carb on the 98 was junk), and was all around a better bike". The yamaha dealer by my house: " too bad you put that 420 kit in there, we'd fix the broken rod under recall if it was stock" In the end my solution was buy a bigger bike to get more HP. It sure is amazing how easy a KTM 520 EXC starts. A little suspension work and away we go. Okay great Jedi Administrator, hit me..... I want solid insults and rude comments, drink way too much coffee, and 4 or 5 red bulls before responding. But don't forget, have fun while your doing it!! :p The tard [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
98 YZ400F, thoughts please
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