Wiseco Piston Kit

5 replies to this topic
  • dirtriderr17

Posted March 21, 2010 - 02:28 PM


I have my whole top end tore apart due for piston and ring change. I wanted to get a wiseco piston kit that raises the compression. Is there any mods i have to do before i upgrade my compression ratio?

  • tek_01

Posted March 21, 2010 - 03:40 PM


Higher CR will need good fuel, so not sure what your using but that's something to look at... Not sure what you have available in your service stations

  • Family Man

Posted March 21, 2010 - 04:36 PM


Depends on your altitude tempurature and compression ratio. 13.1 is probley safe on pump gas 13.5 1 may need higher octane. Maybe not.

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • clutchless

Posted March 21, 2010 - 05:03 PM


i just put the 13.5 1 kit in. only thing i did was new air and oil filter, oil and coolant. Also changed the oil and oil filter after the first break in ride.

  • dirtriderr17

Posted March 21, 2010 - 05:04 PM


i believe theres a station around my house with 101octane, but ive only heard that... i ride in the high desert mainly maybe 5k alt?

  • grayracer513

Posted March 21, 2010 - 07:28 PM


Ordinary pump premium is normally fine.

Related Content


Michigan Motocross Tires by 288yz450

Dirt Bike   Dirt Bike Regional Discussion   North
  • 1 reply

YZ450F 03 Sparks driving me crazy by SirAttard

Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • 5 replies

Thinking about Yamaha 250... by Arctic Pride

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  491 replies

2016 YZ450 by CaptainKnobby

Dirt Bike   Dirt Bike Technical Forums   Suspension
  • Hot  59 replies

Need help by Goforaride

Dirt Bike   Dirt Bike Technical Forums   Suspension
  • Hot  68 replies

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.