Also at a basic level you want to never touching the base of the exhaust port you gonna want to raise it to increase peak rpm power. Raising transfers helps bring the peak rpm up higher but without a good pipe it’s not going to take advantage of it. Finally the intake you want to lower the floor so the fuel and air mix gets in quicker than stock. Hope this gives a bit of insight
I use a round file, that's it. It is a little slower but really forgiving. I don't mess with the intake/exhaust timing but I like to make the interior of the port funnel out much wider, add a 21mm intake and run a higher set of jets. Makes for good response and more power. There is limits though, you don't really want the ports too big.
I'm brand new to the motorized bike scene, so this might sound like a stupid question? If it does I apologize... But what kind of performance does this give? Also does it give the bike more speed? Sorry for the dumb question fellas but I'm loving the hobby and most of you guys are pretty awesome with helping me
You’re fine! Please ask about the things you don’t know. This opens the engine up a bit to breathe better. Yeah you’ll gain a little top end performance. But mostly in the beginning stages we’re just trying to get the engine to run more efficiently. Just know port work is a rabbit hole that has a lot of opinion and experience around.
Since you probably have access to endless cylinders it might be beneficial to actually show some mistakes for people maybe what happens if you grind away to much or something like that
I'm just getting back into motored bikes after 10 years of not having one. Your channel has been great for new knowledge. I wonder if you have seen 'kreosan english' channel? You wont be dissapointed, 3 russians on mopeds hundreds of miles from anywhere. You should maybe do a video on what they did right and what they did wrong. Ride on!
Hey bud good video I’m actually curious if what you did in this video makes a noticeable power gain I’m dabbling in saw porting myself so I really am curious. You didn’t mention squish,base gasket delete or transfers I’d like to see your theory on it once again good vid bud
I have the new v2. When I port/polish the intake, I should also do the same to the reef to match correct? And when will upgrades be available for the v2?
@tonytaylor5087 you could also try grinding a gold ball pattern into the intake side using the ball grinder. Don't forget to port match your grind on the carburetor and muffler. You want smooth even airflow through all ports. That's why tracing the gasket helps. To match the intake and outlet side of all units involved.
Tony, I love this series of videos! Answers so many questions that I didn't know I had. However if I may ask you one question: someone I know, who looks a lot like me with a similar name, may have " over did" the porting/ polishing on his intake, inadvertently raising the top of his intake. Not by much mind you but there is a bit of a rounded peak now. What can I expect ,performance wise from this motor and is there any way to nullify my...I mean his mistake? Will a windowed piston/ reed valve make a difference? I appreciate your time and consideration, thank you.
Sir, I need such a help. I want to ask about the port of such a cylinder, how can we increase the speed and hourse power from its port. Please help me. Please tell me.
![[MV] A leap of faith...ความเชื่อใจครั้งสุดท้าย (From "Petrichor the series")](http://i.ytimg.com/vi/U1piZH2CNXA/mqdefault.jpg)
Also at a basic level you want to never touching the base of the exhaust port you gonna want to raise it to increase peak rpm power. Raising transfers helps bring the peak rpm up higher but without a good pipe it’s not going to take advantage of it. Finally the intake you want to lower the floor so the fuel and air mix gets in quicker than stock. Hope this gives a bit of insight
Much better than the one in the video thank ya sir
Thank you so much Tony for these portwork series, would love to see more
I’m glad you like it! We’re gonna keep it rolling!
Good stuff Tony! (It’s me, David) Looking forward to the next segment, this is a great topic to explore
Hey My friend! Excited for this!
Dust mask is nice to use while grinding as well I also tape my shop vac hose in there to suck out the pieces as I grind 😂
I use a round file, that's it. It is a little slower but really forgiving. I don't mess with the intake/exhaust timing but I like to make the interior of the port funnel out much wider, add a 21mm intake and run a higher set of jets. Makes for good response and more power. There is limits though, you don't really want the ports too big.
I'm brand new to the motorized bike scene, so this might sound like a stupid question? If it does I apologize... But what kind of performance does this give? Also does it give the bike more speed? Sorry for the dumb question fellas but I'm loving the hobby and most of you guys are pretty awesome with helping me
You’re fine! Please ask about the things you don’t know.
This opens the engine up a bit to breathe better. Yeah you’ll gain a little top end performance. But mostly in the beginning stages we’re just trying to get the engine to run more efficiently.
Just know port work is a rabbit hole that has a lot of opinion and experience around.
Since you probably have access to endless cylinders it might be beneficial to actually show some mistakes for people maybe what happens if you grind away to much or something like that
As we test things I’m sure we’ll run into those situations. 😊
I'm just getting back into motored bikes after 10 years of not having one. Your channel has been great for new knowledge. I wonder if you have seen 'kreosan english' channel? You wont be dissapointed, 3 russians on mopeds hundreds of miles from anywhere. You should maybe do a video on what they did right and what they did wrong. Ride on!
So glad to help! I’ll definitely check out that channel!
Hey bud good video I’m actually curious if what you did in this video makes a noticeable power gain I’m dabbling in saw porting myself so I really am curious. You didn’t mention squish,base gasket delete or transfers I’d like to see your theory on it once again good vid bud
What a master class
I have the new v2. When I port/polish the intake, I should also do the same to the reef to match correct?
And when will upgrades be available for the v2?
Great video
It's best if you trace the inside of the intake and exhaust gasket with permanent mark on the ports so you don't over grind those areas.
Good insight!
@tonytaylor5087 you could also try grinding a gold ball pattern into the intake side using the ball grinder. Don't forget to port match your grind on the carburetor and muffler. You want smooth even airflow through all ports. That's why tracing the gasket helps. To match the intake and outlet side of all units involved.
Tony, I love this series of videos! Answers so many questions that I didn't know I had. However if I may ask you one question: someone I know, who looks a lot like me with a similar name, may have " over did" the porting/ polishing on his intake, inadvertently raising the top of his intake. Not by much mind you but there is a bit of a rounded peak now. What can I expect ,performance wise from this motor and is there any way to nullify my...I mean his mistake? Will a windowed piston/ reed valve make a difference? I appreciate your time and consideration, thank you.
What was result?
Is it fine if i just blindly expand my ports on my 2 stroke 70cc scooter cylinder kit
If you were to add water when your sanding it would make it so much more efficient.
What are the aftermarket exhaust options that actually utilize the larger port instead of just blocking what you’ve already done to open it up
Go custom?
And on the v2 you don’t need the boost bottle right ? Because of the reef valve…
Why didn't you port match the gaskets, and polishing does very little
Did you watch the end of the video?
Theirs a guy on TH-cam named Headbites. All he does are cylinder heads . He has some new porting info Also do you have a way to flow them
Sir, I need such a help. I want to ask about the port of such a cylinder, how can we increase the speed and hourse power from its port. Please help me. Please tell me.
Too much work !!!
With the right tools this can be done much faster and more efficient!
Worth? Probably not!