Scared up cyclindar

[azraptorrider]

I have never rebuilt a 2 stroke. do I bore out the cyclindar or do i have it sleeved??

 

['blanshee'man]

If it still has bore space left then you can have it bored, if your on your last bore .90 over then you will need to have it re sleeved.

 

[03blasteryfs03]

bore it .10over if there r still scrachts then do.20 over get a wiseco they r lighter= better rev

 

[rrguy]

Ask a sponsor or local engine builder they can help you with your options & can tell you once they see the cylinder what is needed.

Now is a good time to think about a lighter piston or higher compression piston if wanting a bit more power.

If completely stock & want a bit more power namurar makes a High Comp piston with a design that helps port timing.

 

[Blasterdude27]

If it still has bore space left then you can have it bored, if your on your last bore .90 over then you will need to have it re sleeved.

yep yep^^^

Also go with the smallest bore needed.

 

[rrguy]

You have lots of options, if wanting more power, including a different cylinder, bigbore, porting etc.. etc.. a rebore should run around $50 plus new piston & gaskets.

If you do need a sleeve installed make sure you have someone reliable do it, of course not as much of an issue on air cooled.

FYI
Some 2 strokes cylinders are plated so there are options of sleeve or replate, bore & replate.

 

[yamaha_blaster03]

my cylinder was like that but it wasnt nothing too major, you can have it honed out thats what i did, if its not really bad u dont have to bore it