View Full Version : Piston & Cam
gotwarrior
09-24-2006, 05:08 PM
I am building up my warrior and I am going to be rebuilding the motor. I XC all the time, so that is alot of low end. I wanting to know if I should do a cam when I do the Piston. Or... Just do the piston. Let me know what you think I should do.
if you have the money go for it
if your like me pistons are expensive enough
gotwarrior
09-24-2006, 08:06 PM
All you have is a piston, no cam?
Originally posted by gotwarrior
All you have is a piston, no cam?
yea 12:1 compression wiseco piston
cals400ex
09-24-2006, 10:21 PM
i would do both if it was me. you should be able to pick up a hotcam for a good price and it will help.
gotwarrior
09-25-2006, 05:37 AM
What type of Hot Cam? About how much are they?
Colby@C&DRacing
09-25-2006, 07:59 AM
they offer a stg1 and a stg2 but the 2 is for the stroker crank and piston
gotwarrior
09-25-2006, 01:55 PM
Ok, so i need a stg 1 cam. Now what about the piston. Dose anyone recommand anything? I don't want to have to run race gas.
Another question, is my stock starter going to work with this compression?
bubba's400ex
09-25-2006, 01:59 PM
they told me that i could run 11:1 on 93 pump but i was a little woried so i went with a 10.5:1, i'm in the middle of rebuilding right now.
gotwarrior
09-25-2006, 02:50 PM
I think I am going to go with the 10.5:1, and a stage1 hot cam.
But, Can use just my slip on pipe, or do I have to buy a full exhaust?
And will my stock starter work?
MO-EX-RIDER
09-25-2006, 03:14 PM
get the 11-1 youll be fine with 93 octane if it pings under load we'll just dump a lil 110 in it, and a stock starter will be fine
add a rev box to the list also:D :cool:
bubba's400ex
09-25-2006, 04:11 PM
ya you want a full system.
gotwarrior
09-25-2006, 06:34 PM
Not everyone has all the money like MO-EX-RIDER.
id go with 11:1 comp piston wiseco
i have 12:1 and im running 93-94 octane
your exhaust will be fine
gotwarrior
09-25-2006, 07:21 PM
Did just doing the piston give you a noticeable amout of power.
gotwarrior
09-25-2006, 07:25 PM
I was thinking about this kit. But that is alot of money if I don't need some of that stuff.
gotwarrior
09-25-2006, 08:01 PM
After looking around I couldn't find a 11:1 pistion for a warrior. All I found was 10.25:1 by wiseco. If you no where a 11:1 is let me know.
400eXr1d3rZ
09-25-2006, 08:53 PM
I found a 12:1 :
http://cgi.ebay.com/ebaymotors/YAMAHA-YFM-350-WARRIOR-JE-PISTON-STD-BORE-12-1-87-04_W0QQitemZ300029737625QQihZ020QQcategoryZ43977QQ ssPageNameZWDVWQQrdZ1QQcmdZViewItem
Item Number 300029737625
Stock compression is 9.2:1 on a warrior so that 10.25:1 would be a good difference
i could not find a 11:1 so i guess they dont make that compression for the warrior
Colby@C&DRacing
09-26-2006, 08:14 AM
JE offers a 10.5:1 85mm and a 12:1 83mm
Wiseco 10.25:1
gotwarrior
09-26-2006, 02:40 PM
Now can I use my stock valve springs?
Colby@C&DRacing
09-26-2006, 03:07 PM
all you need is a piston,cam and gaskets
gotwarrior
09-26-2006, 07:18 PM
Good! Now I am looking for heavier head studs for my warrior. Where might I find them?
400eXr1d3rZ
09-26-2006, 07:39 PM
Originally posted by gotwarrior
Good! Now I am looking for heavier head studs for my warrior. Where might I find them?
GT Thunder and Colby sells them I believe.
Colby@C&DRacing
09-27-2006, 06:43 AM
you won't need the heavy duty head studs on a warrior
gotwarrior
09-27-2006, 11:44 AM
Well, If I don't need them than I will not get them. It will save me more money.
Powered by vBulletin® Version 4.2.1 Copyright © 2025 vBulletin Solutions, Inc. All rights reserved.