I've pulled the motor from my GT380 Café project and noticed that the inside of the intake ports/runners on the motor are quite rough from the original casting.
Does it make sense (or any worthwhile difference) to smooth the ports out a bit? I'm not going to go too crazy, just clean them up and move on.
It's probably a 30 minute project but I didn't want to waste my time, or worse, ruin anything in the process.
I'm running 3 into 3 Jemcos and UNI Foam filters (I know...I know... )
Just to clarify, I am not talking about modifying the actual intake ports cast into the cylinder walls--but rather the intake runner (where the rubber carb boot attaches) that feeds fuel/air mixture into the cylinder.
The inside of that runner "tube" is what has a rough casting finish.
My understanding was always to remove any obvious lumps & bumps & casting flaws from the inlet tract, so the shape is as regular as possible, but NOT polish it smooth, as the slightly rougher finish helps with fuel / air mixing.
1976 GT380 - wounded by me, and sold on
2006 SV650S - killed by a patch of diesel and a kerb in Feb 2019
2017 SV650 AL7 - naked and unashamed
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