milling my head

gscx · 01-16-2008, 08:29 PM

well my bike has once again screwed up and ive had to slpit my cases for the second time in like 2 months, on third gear some teeth broke off, but anyway, i was thinkning about milling my head, does anybody know how far i can go before my piston hits my head?

tigmaster · 01-16-2008, 08:56 PM

one word, plastigauge or pression blue. basically it is a clay like substance that you will pack into the cylinder and then put the head on with the gasket and torque it to spec. turn it over a few times and remove the head. measure how close things are and take off about half of that. major thing to have in is the sparkplug.

gscx · 01-16-2008, 09:00 PM

alright, where can i get this stuff

tigmaster · 01-16-2008, 09:02 PM

um, i think autozone or oreillys sells it. other than that, i would try a machine shop. i would think most car shops would sell it though.

gscx · 01-16-2008, 09:04 PM

idk most stores around my area suck, can you think of any stores that could mill my head, im thinking nappa could do it but im not sure

tigmaster · 01-16-2008, 09:06 PM

um, idk i know some stores can do auto heads but bikes are a hole other thing. just call around. but you will for sure need to measure yourself unless you take it to a true machine shop.

gscx · 01-16-2008, 09:11 PM

yea im not going to mill it much, im going for buying race gas every time

tigmaster · 01-16-2008, 09:13 PM

ah, got ya. well not much doesnt make a dif. do you know you engine specs. i can calculate your new compression ratio.

gscx · 01-16-2008, 09:22 PM

ill get it sometime, in the meanwhile i need to get my bike running first before i start worrying about this kind of stuff, but i ported my cylinder and to do it i put my gasket on the bottom of my cylinder and trimed it about halfway to it on each side, i hope i can tell a difference

tigmaster · 01-16-2008, 09:25 PM

what did you do?

01-16-2008, 08:29 PM	#1 (permalink)
gscx Pro Mototips Member Join Date: Aug 2007 Location: bridgeville DE Posts: 2,228 iTrader: (0)	milling my head well my bike has once again screwed up and ive had to slpit my cases for the second time in like 2 months, on third gear some teeth broke off, but anyway, i was thinkning about milling my head, does anybody know how far i can go before my piston hits my head? __________________ Sold

01-16-2008, 08:56 PM	#2 (permalink)
tigmaster Administrator Join Date: Aug 2006 Location: Missouri, United States Posts: 7,526 iTrader: (1)	one word, plastigauge or pression blue. basically it is a clay like substance that you will pack into the cylinder and then put the head on with the gasket and torque it to spec. turn it over a few times and remove the head. measure how close things are and take off about half of that. major thing to have in is the sparkplug. __________________ --'03 CRF450r-- --FMF Pipe, Pro-Tech Revavle-- --Vortex Basket With Tusk Disks And HP Springs-- --Pro Taper Triple Clamps And Bars-- --Devol Full SP With Moose HGs-- --Renthal 13/50 With R1 Chain-- --Now It Is The End, Probably...-- --'06 CBR F4I-- --Bone Stock-- Check Our Latest How-To Here

01-16-2008, 09:00 PM	#3 (permalink)
gscx Pro Mototips Member Join Date: Aug 2007 Location: bridgeville DE Posts: 2,228 iTrader: (0)	alright, where can i get this stuff __________________ Sold

01-16-2008, 09:02 PM	#4 (permalink)
tigmaster Administrator Join Date: Aug 2006 Location: Missouri, United States Posts: 7,526 iTrader: (1)	um, i think autozone or oreillys sells it. other than that, i would try a machine shop. i would think most car shops would sell it though. __________________ --'03 CRF450r-- --FMF Pipe, Pro-Tech Revavle-- --Vortex Basket With Tusk Disks And HP Springs-- --Pro Taper Triple Clamps And Bars-- --Devol Full SP With Moose HGs-- --Renthal 13/50 With R1 Chain-- --Now It Is The End, Probably...-- --'06 CBR F4I-- --Bone Stock-- Check Our Latest How-To Here

01-16-2008, 09:04 PM	#5 (permalink)
gscx Pro Mototips Member Join Date: Aug 2007 Location: bridgeville DE Posts: 2,228 iTrader: (0)	idk most stores around my area suck, can you think of any stores that could mill my head, im thinking nappa could do it but im not sure __________________ Sold

01-16-2008, 09:06 PM	#6 (permalink)
tigmaster Administrator Join Date: Aug 2006 Location: Missouri, United States Posts: 7,526 iTrader: (1)	um, idk i know some stores can do auto heads but bikes are a hole other thing. just call around. but you will for sure need to measure yourself unless you take it to a true machine shop. __________________ --'03 CRF450r-- --FMF Pipe, Pro-Tech Revavle-- --Vortex Basket With Tusk Disks And HP Springs-- --Pro Taper Triple Clamps And Bars-- --Devol Full SP With Moose HGs-- --Renthal 13/50 With R1 Chain-- --Now It Is The End, Probably...-- --'06 CBR F4I-- --Bone Stock-- Check Our Latest How-To Here

01-16-2008, 09:11 PM	#7 (permalink)
gscx Pro Mototips Member Join Date: Aug 2007 Location: bridgeville DE Posts: 2,228 iTrader: (0)	yea im not going to mill it much, im going for buying race gas every time __________________ Sold

01-16-2008, 09:13 PM	#8 (permalink)
tigmaster Administrator Join Date: Aug 2006 Location: Missouri, United States Posts: 7,526 iTrader: (1)	ah, got ya. well not much doesnt make a dif. do you know you engine specs. i can calculate your new compression ratio. __________________ --'03 CRF450r-- --FMF Pipe, Pro-Tech Revavle-- --Vortex Basket With Tusk Disks And HP Springs-- --Pro Taper Triple Clamps And Bars-- --Devol Full SP With Moose HGs-- --Renthal 13/50 With R1 Chain-- --Now It Is The End, Probably...-- --'06 CBR F4I-- --Bone Stock-- Check Our Latest How-To Here

01-16-2008, 09:22 PM	#9 (permalink)
gscx Pro Mototips Member Join Date: Aug 2007 Location: bridgeville DE Posts: 2,228 iTrader: (0)	ill get it sometime, in the meanwhile i need to get my bike running first before i start worrying about this kind of stuff, but i ported my cylinder and to do it i put my gasket on the bottom of my cylinder and trimed it about halfway to it on each side, i hope i can tell a difference __________________ Sold

01-16-2008, 09:25 PM	#10 (permalink)
tigmaster Administrator Join Date: Aug 2006 Location: Missouri, United States Posts: 7,526 iTrader: (1)	what did you do? __________________ --'03 CRF450r-- --FMF Pipe, Pro-Tech Revavle-- --Vortex Basket With Tusk Disks And HP Springs-- --Pro Taper Triple Clamps And Bars-- --Devol Full SP With Moose HGs-- --Renthal 13/50 With R1 Chain-- --Now It Is The End, Probably...-- --'06 CBR F4I-- --Bone Stock-- Check Our Latest How-To Here

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