polished exhaust

[@chadebel2970]

Man miss this PLEASE Ken make more. Love these

[@PoplarMechanic]

Dude I appreciate this so much, I'm just getting into doing chainsaws and I have been just gluing my own fine grit sandpaper together to make my own sanding bits, This blows it out of the water. Thumbs up.

[@andylee5863]

Simple custom flap sander. Brilliant! Definitely going to use this to polish the exhaust on a chainsaw project I'm doing.

[@richardbartlett4075]

for all that is interested, the butterfly mandrel can be purchased from Goodson Shop Supplies. 3" and 6". Available online. This is a great video, I always had a problem cleaning up the valley areas of the port. This video solved my problem completely. Thank you very much and wetting the paper and holding it away from contact works awesome.

[@gogotrololo]

sweet, i love getting awesome tricks like this!

[@aronicmorisato833]

Connor, thank you so much man. im a newbie on a research about port and polish for my 200cc motorcycle. appreciate what you do. ^_^

[@Yz_768]

Thanks for the cool info, and I like the music selection

[@nvmyutube]

Thanks for uploading ! many good tips and tricks there, nice port by the way .

[@fernandogutierrez7053]

Your the best, man the best.

[@markgeletzke6328]

Flitz metal polish works really well also.. Thanks for the tips with the split mandrel..

[@kirbstone111]

Great vid! verry nice porting.

[@omeronghena2084]

Thanks for the tips it helpt me a lot on my cilinder

[@rolfbach2721]

Absolute genius!!!!

[@fuelban]

Really Nice job guy, good informative stuff, I am in the UK, & I use "Brasso" you can get the wadding or liquid type, polish, brass, silver, stainless,copper, ect, ...I even use it to polish my Acrylic work, & remove scratches, Majic stuff. Thom in Scotland.

[@johng539]

You did a better job then the factory, better then any shop who does heads! Just a very well done job, congrads of your work! It's just amazing,,,,,,,

[@davidchapman3563]

Brilliant idea bud.i like it and thanks for sharing

[@ccspecialtytool3040]

CC Specialty Tools has a slotted mandrel like this with a tapered end, for sale at a very low price. They have it in 1/4" shank and 1/8" shank. Keep up the great videos Ken.

[@kevinstearns4198]

cc specialty is awesome for porting. check out their videos.

[@frankcrawford416]

I cut a dowel down the middle and ran it(same principle) in my drill. Not as fast but quicker than by hand.

[@PhazeTwoOfficial]

One of the secret i never told anybody about haha, funny i see you doing it aswell :) Been watching your vids, really cool you do these vids!

[@thebigtruckguy]

ken, we use this method in aviation to polish bushing holes. works great using a green scratch pad cut into a small piece

[@ModitRC]

I bought one of those mandrels 30 years ago in a port and polishing kit, I believe several people make them still.

[@hoilungting875]

Thank you for sharing your knowledge

[@richardlavoie4012]

holy shit my friend,you could not be more right about this,truly and fellow piston head i am. and you are my cousin the gear head lol. good job pal.

[@wolfrage3596]

Great stuff , appreciate the info !

[@jamie123dog]

Well done!

[@khalsayash]

Really innovative. Thanks from India

[@johng539]

The other comment the guy said about the mandrel? Yes your are 100% right, I have a old old pump, and that part looks like it in the video, but I don't care who made it, or if it's for sale, this guy invented the concept on how to do other works, so he did make it for porting and polishing it, as it was made for a oil pump, u can buy them at any auto parts store for only 9 dollars- ask for a oil pump shaft, and whalla! It's the same, I would also use it to put a clean piece of cloth for hi speed polishing, but yea he invented the concept on this one... Good job again!

[@RayTitske]

very nice job and clean

[@brandonquenneville7330]

ty forsharing pro tips

[@omeronghena6767]

nice trick thanks from belgium

[@gubatmotocrosstrailriders3232]

Thank you so much bro!

[@ronmoss9190]

Been doing it that way for years...we always just called it the ole flapper. Real leave a really nice finish if you progress through the higher grits of paper. Try some polishing compound with emery cloth but use the back of the paper not the side with the grit.

[@trashtotransportations5857]

Cool

[@toprjf739]

A tip from a rifle cleaning kit also works. The tip that is used to hold the patch. cut a thin strip of sand paper and slide it into the slot

[@AnSEOGuy]

Hi! Can you guide as to how to check/ mark how much port needs to be grind? We wouldn't want to grind away any more than required! :-) Both inlet and the exhaust ports, please.

[@kalleklp7291]

I used a similar tool when i was a boy..only difference..i made it out of wood. Just a 14mm round stick is all i takes. Now i have made myself another out of stainless steel. Made to last forever.You can use it for polishing the transferports too. Good video you made there..thanks for sharing.

[@willeypoboy6052]

Thanks Ken

[@timellison7845]

What about Nevr Dull polish from Eagle One? I've never port and polished before but you said Mothers, and as far as shine is considered I've not found a better polisher the nevr dull. Im going to try it and let ya know how it polishes out

[@sambuvca22]

Nice video. On your 2013 yz 250 power valve build you showed assembly of the slide. On that slide with the notch that faces up, the welded stop broke off mine. How important is this when running the bike? Can I install the slide without it? As soon as I noticed this Inperfection in the part I stopped assembly and now I'm contacting you. Your feedback is greatly appreciated. I was unable to post a comment on that particular video. Thank you for all your helpful knowledge!!!!

[@ZEN824]

well, you can say that when polishing the exhaust, there's no gain, but can maintain the output.

[@AuMechanic]

Finishing I used bit of linen cut off folded and stuck in the split shaft, then give it a spin against a block of green buffing rouge and buff the port, cleaning buff compound out of port with bathroom spray cleaner and a rinse of water, looks like chrome port. But to be honest it made no diff to power, but to customers a mirror finish port = great job done so it kept them happy. For my own stroker race engines Id spend the time polishing first 6 inches of headers inside as well as port for gains. You could do more but a 6 inch long shaft with split end gets pretty wild in the die grinder and bends.

[@marshallgregory7869]

wtf

[@AuMechanic]

Short version: A high gloss finish in ports wont do shit other than look good.

[@frankcrawford416]

I polish the exhaust port to about 400 grit. I realize that it will reduce some carbon build up, but usually the exhaust gasket when it gets squished protrudes into the port on 2-strokes anyhow from what I have seen. However, the real reason I do it is to reduce heat transfer on the already hot exhaust side of the cylinder. Those scratches really add a lot of surface area. If you unfold a pleated air filter it would have a lot of surface area for example, so by polishing imagine that the air filter now no longer has those pleats. This is just my 2 cents and I am just new to porting. Every little bit of cooling on the air cooled engines can help with detonation issues. A lot of little things will add up.

[@linust1590]

you got that right!

[@AuMechanic]

+Frank Crawford That'll do it fine with the paper, no need to buff up the exhaust port.

[@20021sc]

Could probably make that tool and sell them if no one else does. I know I’m gonna make myself one after seeing how effective it was.

[@Mikebrook7810]

Just saying , wouldn't that water come off of the paper ,spinning at that high of rpm? Awesome little tool you made. Just made one for myself .Thanks for the tips

[@Sam-to1zg]

*Hi need an update from you. Did carbon stick to smooth polished surface ever?* *Thank you.*

[@eriklewis1671]

Ok time for the 1000000 grit, now its glass lol.

[@AWDn0t2]

We call that a Whirlybird.

[@leghumpingelephant]

On your finish polish, try a polish called FLITZ. much better than mothers.

[@tonyanimal1]

Its better called a flap wheel, its an old machinist secret,or shortcut

Could I take a doubt ..... have 2 cars with original and similar Km engine, but one of them, when accelerate above the green band and red before he has trouble winning spin and it seems that vibrates the engine and will not ...... while the other accelerates more easily and arrives without vibration until the red band, let ...... ask, it could be air flow difference in head shapes by differences in manufacture .. ? A flow optimization, could become the first freer car, as the second already is ....? or better ...?

[@Community-Action]

A dingleberry hone aka flex hone does this job easy!!! No paper flakes

[@eriklee8323]

Just fyi mr gasket company has been making that mandrel for 40yrs and still is making them if anybody needs them

[@arturozarate1752]

I've had mine from Standard Abrasives for 25 years now😂😂😂😂😂

[@gregderrick5831]

I was in karting for 30 years and modified everything from Power Products West bends to Komets. Polished all of my mods. I found what you did was spot on. But, here is a trick you may like. Your mandrel for the sandpaper is just the trick. Once you do the step with the 220 grit. Switch it out, and place a wad of steel-wool in the mandrel and go over your port. This will nearly put a mirror finish on the ports. Then do the mothers. Let me know what you think

[@tonyanimal1]

That would be 12.25mm away from the aloo-mini-em, for all you RedCoats!

[@trevorhenry1003]

To whomst it may concern, I respectfully disagree with using mothers on the exhaust ports, only because I shined my exhaust headers with mothers once, and the heat of the exhaust tube turned the mothers into a paste that became hard as a rock

[@raghujaggu]

Hi Sir, I m using yamaha Rx 100 I need a help from you regarding the cylinder I m getting weird sound from the cylinder I don't know why it is I have shown it all the mechanic But der unable to rectify the issue Kindly help

[@Sam-to1zg]

Hi Raghu, How were you able to solve that problem?

[@adampettey1177]

how much to port and polish a motor..... I live in new england

[@frankcrawford416]

A full port job if done right should cost about 500 dollars. There is an enormous amount of work. Any less might not be as good a job as a fair amount charged. You could say you get what you pay for, but like anything in life there are exceptions.

[@markgeletzke6328]

Flitz metal polish

[@Wyzral4vid]

wow :D

[@-JX-]

No gain for polishing 2stroke exhaust port. There might be a few problems as well that it might cause.

[@rinterstate]

Why shouldn't you ? Can you explain please., Thanks

[@-JX-]

rinterstate As you know, 2 stroke ends up having unburned gasoline on the exhaust, the gasoline will return to the cylinder and the polished port will mess up the mixture.

[@im1469]

***** no it won't. Explain exactly how this would happen, please...

[@quadrider47]

***** "the mixture will mess up" - thanks for that profound explanation its obvious you know what your talking about

[@-JX-]

quadrider47 English isn't my main language. The exhaust outlet also works as the up-flow channel. When the expansion chamber pushes the unburned mixture back into the cylinder, A polished surface turns the mixture to droplets and brakes of the mixture flow. While a little rough on the surface will make the mixture flow faster. Also known as the "golfball effect"

[@informediatech-bruno5766]

Why your voice sound like a robot

[@ezjuliani]

Its christmas, how about sharing your ex-timing.

[@tarun9616]

Ezzy J exactly 😂😂

[@urospetrovic5228]

polishing give you extra HP's !

[@ahanson87ify]

there is a 3m product like this.... www.3m.com/product/information/Mini-Mandrel.html

[@lexsuspremsukh6849]

I can make that tools bro lolz

[@johnconnor1296]

Wooooow

[@hoilungting875]

Thank you for sharing your knowledge