Yamaha Discussions about Yamaha ATVs.

Raptor sucked valve ????

Thread Tools
 
Search this Thread
 
  #1  
Old 09-03-2006 | 01:55 AM
tglandon's Avatar
Thread Starter
|
Weekend Warrior
Joined: Sep 2006
Posts: 2
Likes: 0
Default Raptor sucked valve ????

I sucked an exhaust valve in Florence OR 2 weeks ago... So I am thinking about putting a high compression piston in it, along with a mild to moderate port and polish of the head... Never had the valves off before not sure what else I to do... Do I need to worry about making to much power for the stock rod??? What do you think??

thanks
 
  #2  
Old 09-03-2006 | 02:21 AM
Six2notScaredofU's Avatar
Pro Rider
Joined: Nov 2004
Posts: 273
Likes: 0
Default Raptor sucked valve ????

If it was me and i was allready gonna have it apart and spend the money on those upgrades I would get performance Rods to. it would suck if you have to tear into it again for a broken rod.
 
  #3  
Old 09-03-2006 | 03:15 PM
Doctorturbo's Avatar
Extreme Pro Rider
GOT BOOST!
Joined: Jan 2004
Posts: 3,204
Likes: 0
Default Raptor sucked valve ????

I totally agree with Six2notScaredofU.
One thing though, when you break a rod you usually don't have to tear into the motor again. You just unbolt the carb and pipe and toss the rest in the trash. [img]i/expressions/face-icon-small-wink.gif[/img]
 
  #4  
Old 09-05-2006 | 02:46 AM
tglandon's Avatar
Thread Starter
|
Weekend Warrior
Joined: Sep 2006
Posts: 2
Likes: 0
Default Raptor sucked valve ????

I have the top end apart not the bottom end.. So the connecting rod is not easy to get at.. I want to do a couple of mods to improve performance and still keep reliability. I don't want to build it so much (686 hi comp piston, w/extreme head work, stage 2 cam and full exhaust) to break the stock connecting rod... If I go with closer to a stock size hi comp piston, w/ mild to moderate head work and stage 1 cam w/ slip on, the stock connecting rod should be OK??? I already have a stage 1 cam in with a slip on.... Maybe go with a larger size piston??? 673 or 686... What do you say??
 
  #5  
Old 09-05-2006 | 02:55 AM
bad350twin's Avatar
Pro Rider
Joined: Apr 2003
Posts: 891
Likes: 0
Default Raptor sucked valve ????

I hate to admit this but i went for 3 years on a stock rod with a je 12.5:1 piston, megacycle cam,porting, fcr35's ect..... i dont think sparks even includes a rod in their 686 package! But if i were to do it all over again..... i wouldnt think twice!!!
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Nosniborpapa
Polaris
5
09-12-2015 06:54 PM
1ArmBandit
Polaris
0
09-08-2015 09:59 PM
DM2015
Introduce Yourself
1
09-07-2015 11:36 AM
black_thunder
ATV Videos
0
09-07-2015 02:24 AM
black_thunder
ATV Videos
6
09-06-2015 05:41 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


Quick Reply: Raptor sucked valve ????



All times are GMT -5. The time now is 03:03 PM.