749R engine work

rotty900ss · #1 (**permalink**) 11-13-2006, 12:48 AM

I don't really know why I am asking this question, but I'm curious. I have no intentions of having any engine work done to my R. I think I have heard that the stock 749R engine delivered from the factory is somewhat "unfinished". By unfinished, I mean rough intakes that are meant to by polished, if not ported by the owner. Is that true? If so, how much of a negative impact does that have on its performance? How much does it cost to make the improvements?

Thanks

kaos · #2 (**permalink**) 11-13-2006, 01:13 AM

polish the exhaust ports ,never the intake.

rotty900ss · #3 (**permalink**) 11-13-2006, 12:44 PM

Quote:

Originally Posted by kaos

polish the exhaust ports ,never the intake.

So, does that mean the 749R exhaust ports are "unfinished" or are they all that way?

**departmentofsuspension** · #4 (**permalink**) 11-13-2006, 01:00 PM

They are finished. The only major issue with the heads is where the valve seats blend (or in this case don't blend) into the head.