300/440/550 750 question?

[X2fanatic]

I have a westcost head on my 96 ski big pin. Should I leave that or change it? If so to what? And also where can I get a lighten flywheel and what should I look for?

 

[yama_freak615]

I have a westcost head on my 96 ski big pin. Should I leave that or change it? If so to what? And also where can I get a lighten flywheel and what should I look for?

take your stock flywheel to you local machinist. they can do it for you. don't know what to tell you about the head.

 

[giant]

whats the advantage of lighten flywheel...what do i tell the machinist to do.....i have a good local shop who works on skis......:cool2:

 

[extreemthrottle]

the advantage of the lightened flywheel is that its less rotating mass. it helps the motor windup faster. if the local pwc shop has any experience with racing or other they should have a good idea how to lighten it. or you can shop around, i think there is a few shops that sell the lightened oem flywheel for a fee plus your old one. try kevin at legrag.com he should be able to help you out.. as far as the head why are you looking to get rid of it?

 

[Crab]

Not worth the money, just go lightweight aluminum. http://www.jetinetics.com/whatfly.htm

 

[X2fanatic]

I am not really looking to get rid of the westcost head I was just wondering if another company made one that was a little better, cause I know westcost is just more of an average company instead of high end.

 

[yama_freak615]

You need a TBM head bro

 

[X2fanatic]

What is a tbm head?

 

[63chevyll]

. http://www.jetinetics.com/whatfly.htm
Attached Thumbnails



are they making these again??

2 years ago i couldnt get one.

 

[yama_freak615]

this is the head you need. heres what the web site says:



Kawasaki 750/800 Head Kit w/o Girdle
Our Non-Girdled Head has all the features of our Girdled Head without the added expense and complexities of the girdle kit. Cost effective yet high quality you can add to the reliability of your SX-R and have the option of running different compression ratios by interchanging domes. Recommended for use with the stock pipe, or Factory Wet Pipe this head is a great performer at a reasonable price.

* domes are not included



and here is the link:
http://www.tbmracing.com/products/engine.html#head_no




head is gonna cost you about $225 and the domes are almost $100 each

 

[yama_freak615]

and heres a flywheel. its on the same link as i already told you.



EDIT: sorry just realized thats for the 800

 

[Legdragger]

Heads really aren't a huge deal as long at you have proper squish band clearance (.35-.40)" and have the compression you want 175 max for pump gas. Kawis aren't as fragil as Yamahas but I run a girdle head anyway. I wouldn't sweat it if you already have one that is non girdled.

 

[D Slicker]

Im running 185 on pump on my sxr and x2. I wouldnt go any higher.

 

[yama_freak615]

Im running 185 on pump on my sxr and x2. I wouldnt go any higher.

unless you wanna go to race gas

 

[kawishaul]

how about 205 psi in an 88 X-2? I think it's pretty high. Good for race gas.