ridges on the intake ports!

[gs450ss]

1982 gs450t, only 8300 miles, should i shave the intake port ridges and port match?
ill be rejetting and adding a custom exhaust anyway so why not clean the ports up right!
or is this a big no no for this little bike?

 

[Nessism]

Strikes me as a waste of time and possiably damaging if metal shards find their way into the engine.

 

[Dave8338]

Do you have pics of said ridges? A port match may or may no make a difference as far as getting more power out of the bike. Not that much there to deal with. It MAY, improve fuel economy however, with the "custom pipe(s)" you are likely to see no gain there, either.

Clean it up, why not...

 

[gs450ss]

heres a pic of the ridges on the inside edge the intake ports,of course if i do this ill take off the head and cyclider so no chance of shavings going in to engine!

 

[SqDancerLynn1]

I would leave it alone !!!

 

[Calvin Blackmore]

heres a pic of the ridges on the inside edge the intake ports,of course if i do this ill take off the head and cyclider so no chance of shavings going in to engine!

that looks conpletely normal moine has ridges like that and works fine

 

[TeamDar]

I had a GS450 and saw those "ridges". I was going to remove them but didn't. I figured that Suzuki put them there for a reason, they are not just a casting flaw. Maybe provides more low end torque or something. Dar

 

[GregT]

Don't touch the "ridges" Just do pocket porting if you do anything at all on these heads. IMO they're there because the ports are too large - they generate some turbulence at small throttle openings which pobably stops fuel puddling on the port floor.

Greg T