My Porting Setup | Affordable And Functional | 2 Stroke Tuning 

+FORCED-INDUCTN Thanks!

Hard to get out of your eye when the metal cools into it

+fishsticks Haha, great idea!

2STROKE STUFFING ja, gjør da!!!

It works well, you can get a wax stick also that is for that purpose, you dip the burr tip in it now and then and it keep it clean.

+overr8ted2 Thanks for the tip!

I’ve always used a chalk like, metal marking product called ‘soap stone’ or ‘ keel’. Not near as messy as a liquid. Works well with a file!

+Andreas Johansson 👍

+Jason Schneeweiss I've seen this golf ball thing done. Any data on gains?

Jason Schneeweiss golf?

@@2STROKESTUFFING Dimples only work on golf balls at a CERTAIN velocity and only because it keeps flow attached that might break away from the surface. If they have any benifit in a port it will be just ahead of where you might think the flow will separate. EX: in the short side of the transfer walls just before the turn. Even then it only works between ~180-200 Feet per second. Above and below that the smooth shape is better. Golf balls are driven in that range of speeds. Port velocity?? not so much. Add to the complications that all those speeds change a lot with temperature and also with fuel vapor and droplets. Just randomly dimpling the whole thing will likely do nothing if not hurt flow.

+lenny exe Thanks! Could do that!

Before you do make sure to check out a TZ250 service manual...it has a lot of details on the subject and I was surprised after seeing what they meant in person (I have a TZ250 cylinder for a cylinder swap right next to me and the roundness of the port lips is insane)

+Sketch1994 My philosophy in short: No chamfer whatsoever on transfers - reduce tendency to backflow. Huge chamfer on exhaust top edges - enhance flow.

+Gary Ferguson Jr Thanks!

+Dave Spooney Mostly mopeds but nothing against bigger stuff, might come in the future.

CC specialty

+kelco2246 Thanks! I try my best!

Yea but you ever see a millwright throwing on mask to grind some shit?

+Pereke69 I'll do that another time!

Much past 200° on the exhaust is not advisable, max for intake depends on what type.

A industrial heater. Runs on parafin or gas

+nightmare in action nighmare in action It's a heater. Cold here in the north...

Search right angle dental tool on ebay.

Probably, it's from a 50cc pocket bike.

Love your channel by the way, It helped me a lot. I'm outside porting the crap out of a motor that was blown last week, fixing and modding today.

Thanks man! Good luck with the port job!

That's a difficult question... Depends on ALOT of things.

2STROKE STUFFING do you know were I can find the math for it

Gordon Blairs "Design and simulation of two stroke engines" for the math. In short you want the ports as large as possible while retaining the "right" angles, enough blowdown, and sensible durations.

+Marvin Lokers Thanks for the tip!

I use chalk on my carbite burrs when cutting aluminium; the aluminium won't stick to the burrs

WD40