any advice for a first time engine rebuild?

[Warren]

i'm wanting to stick with stock bore though. since i already have a piston for stock bore. does anyone make 102MM sleeves for a stock bore set-up?

[dabigbratj]

talk to bo i think he may have some

[Kenny]

If you can try grabbing an Iron sleeve so you dont have to worry about nikasil. Most sleeves I see are 70-80 bucks. And mine is at US Chrome right now getting bored out. Ill let you know next week how they do


Preddy has it right, go big or go home

I would like to see a big bore too..... You could probably sell that piston for near what you have in it.

On a side note..... Cool pic Chris! That thing is gonna be real nasty to handle in the mud with the 770

[Warren]

i'm wanting to stay stock bore just because i don't even need the amount of power i'm wanting to add as it is. i only ride trails mostly and i hit the sand about 2 times a year. and i'm wanting to run stock swingarm length as well.

if i did go big bore what should i do seriously? and what kind of costs are we talking here?

[Krandall]

Are you thinking BB ANNNND the crank?

[Alkire193]

If you can try grabbing an Iron sleeve so you dont have to worry about nikasil. Most sleeves I see are 70-80 bucks. And mine is at US Chrome right now getting bored out. Ill let you know next week how they do


Preddy has it right, go big or go home

I would like to see a big bore too..... You could probably sell that piston for near what you have in it.

On a side note..... Cool pic Chris! That thing is gonna be real nasty to handle in the mud with the 770

Those wheels will kick so much mud so fast eventually im bound to get to something dry! 

[Alkire193]

i'm wanting to stay stock bore just because i don't even need the amount of power i'm wanting to add as it is. i only ride trails mostly and i hit the sand about 2 times a year. and i'm wanting to run stock swingarm length as well.

if i did go big bore what should i do seriously? and what kind of costs are we talking here?

I wasnt able to dig up much in the way of prices for getting an iron sleeve in your raptor. Preddy would have some knowledge on that since he has one. But I did find some interesting info. Read up on this! http://www.semiweb.com/30953/bore-cylinder/

Pros and Cons

Re-Plated Cylinder Bore
Pro
• Small advantage in heat transfer
• A little 'better wear factor
• Various' lowest coefficient of friction
• weighs a few ounces less
Cons
• Costs slightly more
• You can not be bored when damage occurs
• More fragile
• Can flake and peel

Bore iron cylinder sleeves
Pro
• Costs less
• Boreable for the future beyond the dimensions
• to keep the forum Honeable real seal ring
• Can be worked with common tools
• It can be replaced, if necessary,
Cons
• Slightly slower heat transfer