I just got up from the garage, and im literally out of breath and sweating from the freaking AWESOME time I just had on my MB!!! I just finished mounting this head: https://www.treatland.tv/Puch-50cc-Hi-compression-head-p/puch-hi-comp-head-50cc-maxi.htm to my 66cc m8 head-bolted china-girl.
Here is what I learned...
The piston will hit this head if you use only this head gasket: https://www.treatland.tv/puch-moped-70cc-head-gasket-p/puch-head-gasket-70cc-dos.htm , so I improvised and put a stock head gasket under that, which makes the moped head gasket JUST clear the piston, only a few mm.
A tip for opening up the holes in the head for head bolts... (I am using a handheld drill) Spray the holes with oil first, then when you drill, keep the speed really high and dont push down very hard. The bit will sink through no problem.
You have to run 13mm head bolts because a 14 will not clear the fins. No problem. Sooooooooooooooooooo, results... Well it pules like crazy has so much low end its scary, and high end sounds better and feels faster. Its so much more responsive to the throttle, I love it!!! Haha I sound like a madman. Seriously my MB is 100% more awesome. This info is just concluded by buzzing my block a few times wearing flip flops, so I will probably have more info in the future about what specifically is better.
Oh and by the way im running: Dellorto SHA 15.15, 73 jet, gutted stock exhaust, ported intake manifold.
Proof is in the pics...
Here is what I learned...
The piston will hit this head if you use only this head gasket: https://www.treatland.tv/puch-moped-70cc-head-gasket-p/puch-head-gasket-70cc-dos.htm , so I improvised and put a stock head gasket under that, which makes the moped head gasket JUST clear the piston, only a few mm.
A tip for opening up the holes in the head for head bolts... (I am using a handheld drill) Spray the holes with oil first, then when you drill, keep the speed really high and dont push down very hard. The bit will sink through no problem.
You have to run 13mm head bolts because a 14 will not clear the fins. No problem. Sooooooooooooooooooo, results... Well it pules like crazy has so much low end its scary, and high end sounds better and feels faster. Its so much more responsive to the throttle, I love it!!! Haha I sound like a madman. Seriously my MB is 100% more awesome. This info is just concluded by buzzing my block a few times wearing flip flops, so I will probably have more info in the future about what specifically is better.
Oh and by the way im running: Dellorto SHA 15.15, 73 jet, gutted stock exhaust, ported intake manifold.
Proof is in the pics...
