Join Date: Aug 2006
Location: Chicago, IL, USA
no love for the old triple
Engine is apart and I'm contemplating mods for the bike.
I think since it's already a POS, it'll be a good opportunity for me to port my first head.
After a week or two of reading idiotic forum posts about how to port heads and sifting through endless useless websites, I think I've got a plan.
the two parts I'll concentrate on are the valve throat- the narrowest part of the head just above the valve seat. And the short side radius port shape. My goal is 90% valve size at the throat and a slight bit flatter (less rounded) floor at the short side radius. Other than that, the chances of ruining flow is too great. Oh yeah, and cleaning up some of the casting imperfections.
Then I'll have it slightly overbored/honed +0.25mm with new pistons and rings. Have a good 3 angle valve job done. And put in a megacycle hot street intake cam and switch the exhaust cam for a higher lift intake.
Oh yeah, forgot about the Mikuni flat side carbs.
Ouch this is gonna hurt the pocketbook.
Then, I might have a whole 65hp to the rear wheel!!! LOL.
'06 K1200R- in pieces
'73 Honda CB500F- slow but fun.
'77 Yamaha XS 750 triple- kinda