Warrior 1998 Project

[subaros]

Hi everyone, here's my little project on my warrior for this summer..
(web adress just as example)

Piston JE 12:1 http://cgi.ebay.com/ebaymotors/JE-Piston-Std-Bore-83mm-12-1-Yamaha-Raptor-350-Warrior_W0QQcmdZViewItemQQcategoryZ43977QQihZ015QQitemZ250050124102QQrdZ1QQsspagenameZWD1V

Cam HotCams Stage 1(Does this will push my valves too far for my high compression piston or it only plays on the laps of time the the valves keeps opened ?)
http://cgi.ebay.com/ebaymotors/NEW-YAMAHA-WARRIOR-350-HOTCAMS-HOT-CAMS-STAGE-1-CAM_W0QQitemZ200083328760QQihZ010QQcategoryZ43977QQrdZ1QQcmdZViewItem

EBC Performance Clutch http://cgi.ebay.com/ebaymotors/YAMAHA-350-WARRIOR-EBC-COMPLETE-CLUTCH-KIT-87-04_W0QQcmdZViewItemQQcategoryZ43982QQihZ020QQitemZ300085126042QQtcZphoto#ebayphotohosting

Hot rod Connecting rod (is this really necessary?, does OEM rod/bearing/crank can support 12:1?) http://item.express.ebay.com/Hot-Rods-Co....mdZExpre ssItem

Dyno Jet kit stage 2 http://cgi.ebay.com/ebaymotors/Dynojet-ATV-Jet-Kit-Yamaha-Warrior-350-93-04_W0QQitemZ190085592422QQihZ009QQcategoryZ35595QQrdZ1QQcmdZViewItem#ebayphotohosting

So, now i pass throug some other usual engine built parts(oil, gaskts etc..), I just wanted to know ur ideas about those parts, are they good or not, are they enough or not, will those really fit on my warrior, and also the performance enancement that those modif will give me.. will this be really great?
Will this kind of upgrades will break parts such as my tranny and sprockets or chain?
Other suggestions about what should i add/know/do or not with the parts i wanna put on?.

Thanks a lot everyone !!

 

[dave76]

The 12.1 piston will be ok, just use good 93 octane fuel. With that compression forget the Hotcams stage 1, go with a big Web cam or a Megacycle cam 252X1, at least these cams will have enough valve overlap to bleed down some of that compression to reduce the risk of detonation. Most people don't agree with me but I perfer to use the stock clutch plates with heavy duty springs. And the con rod is not needed, the stock one will surffice. If you havn't already, you should install an oil cooler especially with that piston to help keep the oil temps down which will also reduce the chances of detonation. Good luck, it will def be a quick quad though.

 

[subaros]

ok i saw the cam on catalogue's site ... will i need only the camshaft or at least the valve spring kit too?