Unveiling the Key of Reliable and High-Performance Two Stroke Porting by Pro Circuit

[@justinmoock7506]

I have a motor I sent to pro circuit years back(2006 kawi KDX200)and had them do mod001(porting&head mods). I will say that this engine couldn't be more perfect. When I took the headlight and tail light off and put the "KX kit" plastics on it,every person that has ridden it thinks it's a kx-250! This engine is absolutely sick. It has an angry powerband that is super responsive. On the down side I have to run very expensive leaded race gas at a minimum of 112 octane,but other than that,I can VERY HIGHLY recommend pro circuit to do it motor work

[@zodzod9378]

Good power old is the new NEW love it ! Little john from the UK

[@michaelgarland579]

I have yz125 2003 an apex head an lectron carb now its dangerous fast

[@builtfordtough4499]

They changed next to nothing. All they did was smooth the casting.

[@GregHitchko]

I should have sent it to you then haha!

[@builtfordtough4499]

@@GregHitchko Yeah I got one here that Mitch ported back in the day. Cut base, raised transfers and exhaust. Enlarged booster transfers to max. Larger exhaust sub-ports and the hooks in the transfers you would have to see to believe.

[@mid-ohioguardian6927]

The guy in the vans shirt didn`t know anything !!!!!!!!!

[@LukeMohi-w8y]

Hahahaha look at @builtfordtough4499 talking like he’s better then pro circuit then u click on his pic of duct taped numbers and 2 feet of air with the style of a drunk Jeff Stanton in the late 80s lol…… I think pro circuit did a little more then smoothed out the cast lol

[@BillyWillicker]

@@LukeMohi-w8y To be clear. They did very little in that cylinder. What you see in the video in that cylinder is considered a clean-up port and replate. It will run better than a stock cylinder but only slightly. The work done to the cylinder head is where the improvement really comes from.

[@chrisr.1391]

Let’s go!!!!

[@GregHitchko]

One of the things I'm most excited about!

[@Patricks_Projects]

Where is the porting? :)

[@Thepianobird]

I wish you guys mentioned why you dont do any polishing.

[@thejunkshredder2345]

The best flow comes from a sanded surface not a mirror finish.

[@kingboymachine7329]

yes​@@thejunkshredder2345

[@brincadeiradecrianca567]

Minha kx quebrou o anel oque vc me aconselha a fazer , eu troco só.o.anel ou faço todo o motor

[@ryand8639]

Hurry up!

[@MegaStreet11]

Hey man what did that cost?

[@danielklassen2076]

Kid has no idea what he’s saying lol

[@608Jaystone1982]

Costs?

[@GregHitchko]

$350 my dude!

[@zacharygillette7810]

This kid knows nothing 🤣🤦