A hypothical question

[SHEEBANSAVAGE]

Hey guys, I have a 2003 banshee with fmf fatty's and PC 2 silencers, boyesene power reeds and a yet to be installed timing plate.

 

My question is: I am about to do a compression test in the next day or 2 and if I had low compression and wanted to do new pistons and rings, what brand are good and can I just install the new stuff or do I have to do any work with the cylinders--clean up etc.

 

I bought the banshee new in 03 and its never been apart.

 

Sorry for the stupid post

 

Thx in advance.

[bbcmudtruck]

You might be able to just hone the cylinders, but you will have to take them to a machine shop to have them checked for roundness. Wiesco pistons are the only way to go. A standard rebuild should cost you about $250-$300 bucks.

[firebanshee]

Hey guys, I have a 2003 banshee with fmf fatty's and PC 2 silencers, boyesene power reeds and a yet to be installed timing plate.

 

My question is: I am about to do a compression test in the next day or 2 and if I had low compression and wanted to do new pistons and rings, what brand are good and can I just install the new stuff or do I have to do any work with the cylinders--clean up etc.

 

I bought the banshee new in 03 and its never been apart.

 

Sorry for the stupid post

 

Thx in advance.

I don't think the piston to cylinder wall clearance is the same from a cast pistion to a forged piston. A stock banshee piston is cast and wiesco is forged. I wouldn't run a forged piston unless it was bored for it. I think the expansion and contraction rates are different between the two pistons, forged and cast.

[GrMeyer]

If its on the stock bore. I would safe up and buy a port job. Its the best bang for the buck on a bike. If you go this way. You have have a builder set you up with a new top end when he cuts the bore. But if you are just wanting to safe money right now. Then I would try to get away with some new rings and a hone. Depending how bad that walls are. Also. Make sure you us a compression tester that has a valve in the adapter that screws into the head. That way you can get a true reading. I also do a compression test on a warmed up motor. Because metal likes to expand. Also, Another good mod is an after market head from one of the vendors on here. I have been running my Noss head for two years. And nothing bad to say about it. Good guy to talk with also. When you report back with your compression, make sure you say what elevation your at.

 

Here is a link to what im talking about for the compression tester.

http://bansheehq.com/forums/index.php?showtopic=70901&view=&hl=compression

[bansheesandrider]

Wiseco pistons are forged. Forged pistons run a tighter clearance than a cast piston so putting a Wiseco piston in a stock bore is pointless because the piston to cylinder clearance will be to big. Wiseco does make 64mm pistons for the guys that have resleeved and can set their bore up for the proper clearances. Wiseco is the only brand of pistons to use in my opinion. If money is not a problem, then I would recomend porting it for how and where you ride while you are in there.

[SHEEBANSAVAGE]

So I did the compression test today and I am 120 psi both sides. I guess no work needed right now. I am attaching a pic of my compression tester for you guys approval or not!!!

[SHEEBANSAVAGE]

So I did the compression test today and I am 120 psi both sides. I guess no work needed right now. I am attaching a pic of my compression tester for you guys approval or not!!!

 

 

Sorry my pic was too big...

[SHEEBANSAVAGE]

here is the pic,.

 

Thx for the help.