I just saw your sig line, my Son lives in Vegas and he will be taking his bike home with him after the April race and Im sure he would like someone to ride with, I will send him a link to this thread.Show us your "Fred Head"... Here is mine.
Original thread
http://motorbicycling.com/showthread.php?t=52158
Alright i think im seeing it. I understand either that i will add gaskets to make the .01-.04 or sand the head or cylinder down. the part im not understanding since i have not much knowledge of engines is the use of the solder i see that we are putting it down through the spark plug hole and ? ill get it i just need something more visible? thanksI use 1mm solder to check my squish.
Bolt the top end together with gaskets, torque it down, with a length of solder in the spark plug hole and reaching to the edge of the bore, turn the motor over past TDC, check compression of solder with vernier's.
If it does not comprss 1mm solder, try 3mm.
Then adjust gaskets/deck jug/shave head to suit.
Hey , i bought the fred head gt-5 top end kit . it says on freds site to -
"Set up the engine so that when the piston is at Top Dead Center, there will be a .010"- .040" clearance between the piston and cylinder head. A tight squish clearance will produce the best combustion efficiency."
Im not sure what exactly this means. Im assuming when piston is at its height when connected to crank? what can i use to measure?