Bore my stock Blaster .20 over

Dylan

New Member
Jun 3, 2008
12
0
0
Alvaton, Ky
Ok so im wanting to bore my stock blaster .20 over. Could someone please tell me all the parts, and sizes of the parts i will need? I am pretty much stupid when it comes to motors but thanks for any help.
 
Why do you want to bore it over .20. you know that is only 2/100th of an inch?? That will not improve performance of your bike at all. Now if you are boring it over because of a rebuild then, only bore it over the minimum. so .10 over. If you are looking to bore for power you wouldhave to bore to the 240 kit, get the 240 sleve or, get the 240 head.

As far as parts when you bore it over all you need is the piston and ring set that matches the size of the bore. They are easy to find online. Go look at a site like www.motosport.com
 
PM one of the engine builders that I mentioned in the post above. they all port and polish and can give you some good prices. The prices will range form $180-$250. I think it is well worth the money. You will notice when you get the P&P. The only reason I have got one yet is because I am waiting to do a $1400 engine build.

If you spend $500 and got a good P&P, Exhaust and air filter you will notice a huge difference over stock.
 
Here is the links to the profiles of the builders. Just PM them and tell them
what you want to do. They are all very helpful.

Yamaha Blaster Forum Wildcard2

Yamaha Blaster Forum Kennedy_Power

Yamaha Blaster Forum FLOTEK

FLOTEK also has a website: http://www.flotekperformance.com/


I have heard good things about all three builders. You just have to shop around and see what you want and who will give you the best price for what you want. I do know that Kennedy_Power has an awesome deal on a P&P 240 Kit.
 
Last edited by a moderator:
dude if you go straight from stock to a ported cylinder matched to a pipe ur gonna crap yourself when you see how much more power it has!

i think Angus (kennedy_power) made like 33 hp with the shearer pipe he sells and his porting. thats twice the stock horsepower!
 
You could get an FMF if he wanted...He could just have the builder build the exhaust port to match thr FMF pipe. But, I would go w. F7, LRD or Toomy
 
nope. don't get an fmf. even the most savvy engine builder can't make a pipe suck harder or rev higher than it does. a pipe needs to be built right in order for a builder to get it to perform. fmf's have no bottom end power, peak low and early, have no over-rev and come on real weak......
my f7 ran great, can't say anything for any other pipe, but i got a shearer in my frame waiting for my jug and head back from angus (he's doin some touch ups to fine tune the jug to the shearer for me) so i can slap her together and take her for a spin!