i need to change the crankshaft pulley screw is there anything i need to know like the crank will fall can i get instruction in change it

 

You mean the crankbolt? When you take out the bolt, remove the the pulley. Keep an eye on it, there will be a little peice of metal, shaped like a retangle, it's the key. Then just put the key back in and put the pulley on and tighten the bolt down. I'm not sure how tight, but I know you're going to tighten it ALOT.

 

AND DOES THE BOLT MATTER LIKE IF U USE A B16 OR GS-R ON A TYPE -R MOTOR