Porting help

[SuperChris]

I'm new to the Blaster scene, but I always have wanted to get one. I finally did. Now I need a good deal on a pipe and I need some porting specs for MX. I want the thing to be as fun as stock but with more power. Can anyone find it in their hearts to give up some build info to me? I can do transfers and all and I may be able to cut a head for desired compression.

[pbblaster2]

here is a port mapping picture for a dt 200 but they r the same and you can make it to your specs but bacically jus narrow the spot in the middle of the intake and tapper the transfer ports at the top

[taylorman32]

Im putting a 3m stroker crank in this weekend. Had a buddy of mine tell me that certain port work dont work good with the stroker kit. Was wondering what, if any difference it does make. My cuz owns a auto machine shop, he building my motor. He is learning port work on mine. hehe lucky me.

[pbblaster2]

put a spacer under the cylander and it will raise up the cylander to match the port work

[SuperChris]

87* ex.
117* Trans
I found a 28MM Keihin PE carb and am using the stock pipe. After milling ALL the step off of the head it's back up to 150 LBS compression and didn't cost a thing except a few minutes on the belt sander! I flattened it all out with a piece of glass and rode it. The little thing rips for having the stock pipe! All the bottom of stock, with WAY more midrange and a little more overrev. I need a pipe if anyone can make me a deal.