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@@Houseworksaws thank you!

You are very welcome! However. I did do something wrong. If you read the comments, one person told me how to make it work without grinding. Be sure to read that comment, and good luck with the upgrade!

@@tylerheard1279 thank you. This is actually a revival of a project I had a while back and watched your video but didn’t have the parts. I randomly ended with the fitting that holds the round air filter and decided to look up your video again. I have several bigger saws that I use more but something about the 4600 I just like. One thing I like about it is how quiet it is. Don’t get me wrong, I love a loud obnoxious demon sounding saw but for when that isn’t practical the 4600 always shows up

@u.sonomabeach6528 mine is my current favorite. It's not crazy heavy. Runs awesome and mine is ported so it's got good power. I just wish it had an oiler that driven by the clutch drum.

@@tylerheard1279 yeah the oiler is the only negative with mine.

On this one it was remove the base gasket and bring the port timing on the exhaust and upper transfers up the same amount as the cylinder dropped from removing the gasket, maybe a little more. And I opened up the lower transfers some as well. Didn't do much but clean up the extra material in the intake and tried to port match as best I could. You really should have a degree wheel(I do and did use on this) but you can do a build like this by precise measurement.

You grind the ports with a rotary tool to change the timing numbers. You could probably use a round file but you would have to be really careful and it would take forever.

Rich fife cut the base for me. I'm running a copper base gasket with about 19 thousandths squish. When I get home to my book, I'll give you the timing numbers.

I ended up 102 exhaust 125 transfers 76.5 intake. Initially it had 180 psi compression cold and dry. I suspect it's closer to 195 now but haven't checked.

That makes a lot more sense! Wish I had you with me when I was doing this. I works the way it is but that would have been a lot easier. Thank you

@tylerheard1279 Thank you for your video, it's nice to see info on these saws, they are very well made.

@MegaKelcat agreed! I love it. After the cylinder work, this is my favorite 50cc class saw I own.

Thank you!

Hello! Thank you!

Is not too bad after these basic mods. I would take it camping or cut trails with it for sure.

th-cam.com/video/qgF9kMd_HF8/w-d-xo.htmlsi=c4MO20IcvRpBJfwd Check out the timing advance performance.

After all of these basic mods, it's noticeably stronger, and yes, it's very nice in the hand and light weight. It started harder in stock form as well. I am now a fan.

@jonathanhoekstra6174 I didn't show it, but the filter media I used is UNI sheet foam. I got it on Amazon. I used 5/8 inch, and you need to oil it with a foam filter oil.

Thank you!

The drive to limit emissions is really why any of this works. It would already be optimized from the factory if emissions weren't such a concern.

Hell yeah! He's always willing to help.

I see you👍🏻

Thank you

The thing was an absolute dog beforehand. When I finally get a tiny right angle tool, I'll do more work to the upper transfers, and I think a timing advance might help as well. But for now, it's great compared to stock.

@tylerheard1279 once I button up a few more projects, I'll send you a gift...

It's my favorite😁

I'm not super familiar with that model but I'm sure there is something you can adapt. Thanks for watching!

Is the 501 the pro version of the 4910?

@@tylerheard1279 , yes thats rite.

​@@echoglen8649 th-cam.com/video/FCklZBxvsY4/w-d-xo.html

@@tylerheard1279 , ya i need to check into that! 🤙🏼😎

Thank you!

I didn't actually know if it would work out the way it did but I had a hunch because the CS 4600 and CS 5000 share the same chassis. You can even put a CS 5000 piston and cylinder on a CS 4600 bottom end. Thanks for watching

Thank you

Yes and ported it.

@@tylerheard1279 nice could you do a video about the mod you did well explained i got myself a cs 4600 and want to mod it

@@BenSawyer72 tybird01@gmail.com. send me an email and I'll show you some pics of the exhaust, today or tomorrow. When I tear the saw down I'll show you some pics of the port work. Might be awhile on that. But I can give you the timing numbers.

​@@BenSawyer72 Hey man, if you want to share your email with me I'll get you some info.

I do too! It feels quite modern aside from being built like a tank. Certainly torque oriented.

@@tylerheard1279 they were way ahead of their time

Thank you! That's my favorite so far

@@tylerheard1279 😎🤙🏽

I've cut with it and it's great for what I want. I'm trying to get a cutting vid up on Saturday.

It's extremely fat in that video but it's strong.

Thank you. If I had a connection to a machinist at the time it would have been much better but I got about a 20% increase in performance.

@@tylerheard1279 what area are you in, I'm in MI, I know a fee guys here. Are you on the forums at all.

@@brettblack7049 I frequent the forums but I'm not much of a poster there, just gather info. I'm in Clare Mi

@@tylerheard1279 That's awesome, hi neighbor :). There is a guy who does port work in East Jordan(Kevin), and one in Leslie(Joe), either could do some machining I bet. We may have talked before, I'm chipper1.

@@brettblack7049 I have spoken with Joe but he's pricey. I found a guy now. Gonna be putting out a few nice saws coming up. Where are you at in Michigan?

This was right in the middle of the trail I needed to use to cut firewood. Quick and dirty, sorry for the poor set up

If I had a lathe it would be night and day, it's got fat squish. But it still increased almost 20%, so I'm happy.

@@tylerheard1279 yeah the stock cylinders can have the squish all loosy goosey. I just ported a Poulan 2150 34cc and the squish is real big. But with an iron horse pipe it pulls a 36" bar with a full 3/8 full chisel chain like a boss. I'm super happy with it.

@@patthesoundguy I just sold one of those in the craftsman grey. It was surprisingly torquey. That is an amazing result! Do you have a channel?

@@tylerheard1279 I do, I'll have a video with the big bar up soon. I need some better footage with it .

@@tylerheard1279 I didn't do anything crazy with it on the porting and I love it

I'm not sure what you mean. Could you elaborate?

@@tylerheard1279 we provide accessories for Poulan,Husqvarna,STHIL,ECHO and so on.

@@tylerheard1279 hi friend,if you are interested, you can leave the email ,easier to communicate.

@@ninazeng6036 do you have an email listed in your "about" section of your channel?

@@tylerheard1279 yes you can find it.

It does! There's more to come with this saw though.