Good idea, if I were anyone with any new quad I'd think about this but go over the welds yourself if you can weld and if not have a friend gussett it. I would think about some good shocks Elka has a complete suspension shocks, A-arm, and swingarm for around $2000 if you have that kind of money. Also Yoshimura has a complete 450 kit but if you it's aver $2000 and you can probably find a locan atv mechanic who can bore and stoke it pretty cheap. Make sure to get a bigger carb it will give you a lot more top end. The 450 kit from Yoshimura with the a bigger carb gives you over 47 horsepower. You can get your's bored to a 440 or 450 than a lot of these bigger companies but there's has probably got a better warranty. Thanks for the gusset idea qwerty, ol chum you're always so quick to help us z400 owners it almost brings me to tears, thanks (sarcasm intended).[img]i/expressions/face-icon-small-disgusted.gif[/img]

 

Woops, sorry about that one sentence, I meant if you get the Yoshimura kit it's over $2000 and you can probably find a local atv mechanic to bore it out for you a lot cheaper. Sorry about the bad spelling.

 

Thanks foe all the info. I dont want to sound ungreatful(I am thanful for your help) but I was hoping now you could give me some specifics like which pipe and sprockets etc. thanks a bunch

 

get the fcr 40mm its better than the 39