Piston switch interval

[Mattias]

How often should I change pistons to be sure not the damage anything? I aint competing or anything.

 

Is 50h to long?`

 

Sorry for bad english, Im from Sweden

[BansheeDan]

How often should I change pistons to be sure not the damage anything? I aint competing or anything.

 

Is 50h to long?`

 

Sorry for bad english, Im from Sweden

 

 

my 01 banshee went 5 years on the stock top end......

i wouldnt let it go that long personally.....i bought the bike used and pulled the stock pistons out myself 3 months ago

 

i would say do a top end every other season

the best way to tell is every so often do a compression check

i believe if its under 115 psi per cyl. its at least time for rings/hone (some one chime in if im wrong)

you dont have to change pistons every time you do rings unless the cyl. is tapered or torn up from something breaking

[bigboybanshee]

the best way to tell is every so often do a compression check

 

:thumbsup:

 

Also if the cylinders have 10 or more psi difference between the two, then it's time to freshen it up.

[Mattias]

Sounds good. Thanks for fast answer.

[letsgetthisdone]

But don't worry about the compression unless it is taking more than 4-5 kicks to start it when its cold, and even then check your reeds first.

[Mattias]

But don't worry about the compression unless it is taking more than 4-5 kicks to start it when its cold, and even then check your reeds first.

 

 

What do you guys see as cold? I have 14 degrees farenheit outside (-10C) now and it starts in 5 kicks. I think the carbs jetting are stock so Im gonna change the main jet as soon as I can.

[dajogejr]

Brr...yeah that's cold.... ANd for those temps, unless the dealer or person you bought it off of rejetted for you, it's gonna need to be richened up.

 

Keep in mind, bigger main will not help it start any easier, so...you might either and/or have to put bigger pilots in, or adjust the air screws.

 

Get yourself a good quality compression gauge...and check it every few weekends for your own sanity. I wouldn't say you have to replace it once it gets below 115PSI...but, you'd be more than safe. My 96 had the original motor in it last year, OE top end and everything. It was at 110 PSI beginning of 2005, and I beat on it all year. Towards the end of the year, it took a good 8 to 10 kicks to start, but...once warmed, ran great. I was more than likely on the verge of needin a top end!