03 Banshee rebuild help!

[sapient]

I'm from blasterforum, I got a blaster not too long ago and pretty much fell in love with the 2 stroke thing... My blaster is pretty fast, but I wanted more
My friend blew up his banshee and sold it to me for $450.00, all it needs is a new piston/rings. I figured it was a damn good deal.

It's an 03 Yamaha Blaster

Full FMF Gold exhaust
Shaved head
V-Force reeds
+10 Timing Key
GSXR clutch
+6? Swingarm
K&N Air Filter
ITP Holeshots

Resized to 44% (was 1600 x 1200) - Click image to enlarge







Soo, my question is... What type of pistons do I need? Do I need to replace both of them or just the one that's F'd? I have a new shaved head and there isnt any damage to the cylinders... I know im going to need to flush the case out with diesel, but that should be it right?

So, I need stock size piston/rings, what kind and where should i get them?

Is this a good deal?

Amazon.com: Option Pro-Lite Piston Kit for Yamaha (573M06600): Automotive

Amazon.com: Option Pro-Lite Piston Kit for Yamaha (573M06600): Automotive

Also, I was told that the +10 Advanced timing might have been the reason it blew, which would make sense to me, since ive only heard of people advancing the most of +4...

Thanks in advance, hope yall are able to help me out!

[BansheeGuy]

hey man the guys at bansheehq.com can answer your questions alot faster then this place can.

[sapient]

Yeah, I tried there and it didn't seem like they were too interested in helping me out...

[04rangerboy]

use wiseco pistons get them from ebay for cheapest

[BansheeGuy]

well u can get a new top end kit for 175 on ebay, make sure get your cylinders bored out then choose the correct size pistons, the ones u linked is for standard size.

[sapient]

I was debating just getting stock size pistons and not getting cylinders bored, they look clean, the most i was going to do was hone them, and put stock pistons...

[04rangerboy]

I would reccomend boring themeven if they look like new, the chances of the rings not seating properly just aint worth it. you already have itapart why not, btw 10 degrees is way too much 4-6 is the most it should have have with the mods you listed I would really get it bored while you got it apart though.

[BansheeGuy]

get it bored out man eyeballing it is not a good choice.

[warriorx]

HAVE IT BORED>>>>>> Unless you have the proper measuring tools to mic the cylinders. They can be tapered or out of round and you can not see that with the naked eye. 10 thouandths of an inch tapered or out of round and you have now got problems with ring end gap, rings seating piston slap......Need I say more.....

[diggerzmound]

Take the cylinders and the manual to a machine shop and have them measure, there is absolutely no reason to bore if you don't need to.