installing coolhead?

[blueboy22]

in a few days here i will be getting a pro design coolhead in from duner440 and being the good seller he is he's letting me get it and make sure everything works well, problem is my dumbass has no clue with engines so i'm going to need to know detailed steps in installing the coolhead, i've been reading alot about installing them and everything i need to know things like what all fluids i need to drain from where also what to put back in as far as fluids. is it just the radiator fluid, also he got me 20cc domes and i live in northern kentucky so i believe i'm somewhere around 700 above sea level can i still run 93 octane? and also wondering if i have to rejet from stock to the pro design head and domes? thanks bhq for all the help you already have givin to me and sorry for being a dumbass to this (but i do wanna learn!)

[Washburn]

I wrote these up a while ago for the Noss Head install. Only diffrence is your gonna need longer cylinder studs for the coolhead. I recomend getting a new O Ring set too for cheap insurance.

 

TIP

When you remove your radiator hoses make sure you have a coffee can avabile. Take the plastics and gas tank off before you do anything. Also there are two screws on both sides of the motor(your jugs) rite by where your pipes start to get fat(TR6s in my case). You must remove them screws to let the rest of the coolant out or coolant will run down in your cylinder walls and if you dont get all of that out it could be corrosive to your piston rings. Remove these bolts and let the rest of the coolant run out before you take your stock head off! Im pretty sure the bolts are 10mm. You will need an open box end wrench to remove the bolts. The one screw dident come out all of the way for me cause the pipe was in the way so I had coolant run down my walls. That took me almost 30 minutes to sop out all of that coolant. So you might want to take your pipe off. If you chose not too and the screw doesnt come out all of the way tip your quad over and try to shake all of the coolant out of the loose bolt side. If you do get coolant in your walls GET IT ALL OUT. I just took paper towels and ripped them and folded them into little squares and kept dipping them in the walls to collect collant untill I seen NO COOLANT LEFT! A Spounge would have probably been better. after that take your head off in the numbered pateren and put your new head on the same way. I also used a decent amount of grease to put my O rings in. The O rings take over any gasket function so you can remove and throw away your old head gasket. Dont be afraid to apply grease to hold the orings in place cause it will all burn off anyway. When you apply the big O ring to the base gasket push it in a little at a time donot run the oring with your fingers or you will stretch it and have to start over again by pushing it in place not gliding. Then put your domes on top of the cylinders SLIDE DONT PUSH the base gasket over the domes. Make sure your Orings are still in place when you do this. After the base gasket is on your ready to put your new head on. Do that tighten the bolts connect all your hoses back up then TORQUE yout bolts on the head down to atleast 18ft pounds 20 is recomended. You will have to squish the copper washers down when your sealing the bolts back in so dont worry if it feels like your going over 20ft lbs. Do make sure your wrence is properly calibrated though. After you do this your gonna want to ride it. I sugust RIDING IT LIKE YOU STOLE IT!!!!!

[Trick2stroke]

Good post, but how does increased compression from the smaller domes effect jetting? Or will it at all?

[Washburn]

Good post, but how does increased compression from the smaller domes effect jetting? Or will it at all?

 

No it doesnt affect jetting.

[blueboy22]

thanks for the tip wash anyone else have any information (just got the coolhead today going to try to put in on tonight if i get time) so any help would be greatly apprecaited

[blueboy22]

alright so i was talkin to my friend about installing it and he said that if i make the slightest mistake on putting it on that it will burn up my motor?? whats the worst thing that could reallyhappen on tryin to install it myself or shuld i just pay to get it installed somewhere?