Also keep your radius tight as possible. In all areas. And add a "brow" if you will on the rear transfer.. As they are the main transfer and benefit from this
@@joshlee1799 you think so? i'm using jb weld, weicon bicomponent, and pattex liquid steel for years now, every engine still running. Never had problems of it getting loose. I even used it to change angles of the transfer ports in the cylinder. It holds up if you want it to, needs good preparation, clean and rough surfaces.
Making the hole walls similar to the surface of a golf ball so the JB Weld grabs from it will make it hold better. Mix the JB Weld and apply enough to cover the tape. Let it dry, scrape the surface of the recently dried JB weld and apply another layer, do several layers instead of one lump paste. Will make it much stronger. Applying very fine shavings to the JB weld will make it much stronger as when rocks are applied to concrete and becomes one massive grid. As an example, when I fix balsa airplanes, wood shavings is applied to the epoxy, or baby powder, it becomes a much stronger bond than just pure epoxy. Good deal, and thanks for the video
You won't believe how I block off the cylinder end of the intake tract. I found them in a toy section of a department store. I can't remember the name of them, but they are made by "Nerf". They are a tiny little football made of Nerf foam, with a short shaft with feathers like the end of a arrow, (but softer). I just put a piece of clear packing tape over the port, and stuff in the football. Fast and works great. I love to build reed case kits for TS cases, (and wish Trevor would produce them again), and have been building them for over 15 years now, since Trevor came out with them for the old ISA go-Ped racing, (of which his and my racers won just about every expert and pro race for the last 3 seasons of that series with his cases and our top end kits.), and I never mad a nice block off plate. I just made a bunch of them, and they will be sold with my top end kits, and singles through DDM for those who want one. They are the best looking block off plates on the market. It took me 4 days to design and make the darn things. :) I will be shipping some to DDM this week. By the way, you do better work than some people I know of who do this for a living. Doug @ ESP
Cool to hear someone that was into go-peds doing things like this. I had a couple that had modified motors running on alcohol that I used to ride around everywhere. Miss the smell of those things! They got me into mechanics and building things and eventually a job at motorcycle dealership in service. Best years of my life!
I've been experimenting with JB in the transfer ports of my bicycle engine. I end up removing quite a bit of material from them when I clean up the cylinder ports. So I add JB to the intake sides of transfers and the way jb flows it seems to get me a good angle while still maintaining velocity.
ur like me. i do lots a stuff with my drill press. good stuff. one day im gettin a lathe and miller tho. small stuff ,not micro ,but prob the grizzly $600 odd dollar size. 8x15+ and mini mill none to fancy but enough
Amazing work! I just got a case reed pocket bike motor for $47 on eBay to play around with, would you recommend adding one big boost port up the back or doing 2 or 3 thinner ones? I’m looking strictly for lower end punch and don’t worry about ring gap over the port it’s my motor to blow up should worst case scenario happen. I’ll be cutting the new ports on a hobbyist mill and then chamfering by hand.
I'm suprised JB weld is withstanding the temperatures and the friction. Is the stress on material that much lower on RC engines? I would have guessed totally the other way around.
Nope, not at all. The intake port on the cylinder becomes obsolete once you convert the engine into a reed inducted crankcase. So the cylinder intake port is then filled in with epoxy which allows for an extra set of transfer ports. If anything, your engine will be getting getting more fuel. This engines use Walbro pulse carburetors which have tunable high and low speed jets.
True! But the intake port on these cylinders sit below the piston when it's at bottom dead center. Also, stuffing the intake port on these is a standard procedure and had been done several thousand times. You can even buy these cylinders ported with JB-Weld.
If you believe the jb weld is fine to use on a cylinder, then build a cylinder out of it and prove it is just as strong as what the factory uses. Jb weld is great, dont get me wrong, just not good with gasoline or high heat applications.
@@ericsalidbar1693 there are many types of jb weld, jb marine may hold gasoline, havent tried it, if heat, gas, pressure or antifreeze is involved i reccommend permatex 2 part epoxy, permatex also makes kits for fuel tanks and in a pinch a bar of soap will seal a pinhole for about a month. also i dont know where youre from but where i live its almost 20 % ethanol in our fuel, alcohols both ethelyene glycohol (antifreeze) and ethanol eat most epoxies including normal jb weld
I've never seen seen piston windows from indirect induction , I've only seen it from direct from reed through piston window ,,I've read up on top(world champions) spec tuners guides on zenoa's and non have this ,I wouldn't ogmf thought it even run as disrupted induction cycle
This cylinder is moddified for a custom billet reed valve inducted crankcase. The intake/carburetor now feeds into the crankcase Vs. the cylinder port.
Nice work, is that an ADA billet head? Do you sell the head kits? I have 2 brand new in box Trevor Simpson reed cases and need head kits for them when I have the funds.
@@TheNoisePolluter ok thanks for the reply, where can I buy the lower heat sink sleeve you have used, I was looking at using an ADA head on my new TS cylinder but the TS cylinder has one more fin machined off than the ADA cylinder so it would leave a gap.
Yes, I make them to sell on Daves Discount Motors. But if they do not stock them, I can make them directly for my customers, including light weight and high rev versions. Doug @ ESP
That's for the ring gap when the piston is at bottom dead center. The gap in the ring needs to be prevented from pass through any opening in the cylinder wall.
you miss matched the piston and the cylinder port that has a bad effect on airflow also if you make this as a performance engine you also need to polish the cylinder ports no oppinion about 6port cuz never tried it
What was the JB being used for on the intake? This modification is standard for when using these billet reed crankcase conversions and has been done several thousound times.
it was used to fill in part of the port to change the intake shape completely., not to fill a hole, only to fill space by bonding to the cast aluminum, which it held for a few months but eventually gave way. i believe harmonic vibrations near the camshaft were to blame. tempting to try another product (devcon) but would rather have it welded and not risk it. do not get me wrong i have used it on engine casings countless times and will continue to do so, but not in a port with gasoline.
Where's the running engine and what spec performance difference is there ,think people was asking why such a length of the bump in the ex port from inner cylinder to outer port ,I get why as snag the ring but why was it continued all the way ?
Do you mean the boost ports in the piston or cylinder? If so, for doing the piston you I just drill a hole through with and hand drill, like you see at: 8:08 and then I use a carbide dremel rotary bit like you see at: 5:40 to then hollow out the boost port I traced out with the sharpie marker.
Nice, I added a boost port in a similar way on a pocket bike engine by widening the intake as far as possible and putting a jb weld bridge in the middle to carve the boost port into. I used hot glue to take up space so the jb weld stayed in the middle, then melted it out. Have a vid of it ua-cam.com/video/ZNhi7pVFZKo/v-deo.html
Do you think the 6th porting is worth it over 5th porting? I tried test reed porting a throwaway head "don't comment on the piston I messed that up? Also didn't have a clamp for the head so its a little crooked but the end result still gave me allot more power then stock. photos.app.goo.gl/HzpML21o83cbQUS38
Video of engine running. My next head and piston will be done using clamps for precision also im going to make a deeper 5th port or 6th port depending on your answer. photos.app.goo.gl/FmmFHyBFSYUp7afo6
5th porting ideal for if you have larger eye-brow ports the intake side transfer port. and the 2 side-by-side boost ports(6th port) is ideal for if you want to keep the transfer ports as straight-vertical. Zenoah G320RC transfers are more ideal for 5th ports.
@@TheNoisePolluter aight cool. Lastly I know piston windows favor being at the top for midrange power but is it true smaller windows allow more torque or should I just go as big as possible?
@@TrooperManaic The boost port should only be as wide as the port itself and the height be a little taller than the height of the port when at fully exposed(6-8mm).
Non funzioneranno, ti è saltato un pezzo di cromatura dal cilindro si tratta del pezzettino in mezzo ai travasi ed è proprio dove passa il fermo della fascia sul pistone.
Yes this Epoxy method works, everyone who has a 1/5th scale Zenoah CY reed case does this for their 5th or 6th porting. Some 15,000-20,000 cylinders have been done this way.
Sory- mory bat way! That's smol sitze CC engine Mast have 6 por's. End for'e wath's 2 part's Zylinder oh' i don't understand. End that's JB super glue system meby nice for'e doo' that's.
I'd love more than anything to cast a whole new beefed up ported cylinder with advanced cooling etc., but not all that easy, just watch #2STROKESTUFFING 's channel.
Here's Part: 3/3 of this final cylinder build
ua-cam.com/video/kyExjoMH7cw/v-deo.html
TheNoisePolluter I would like to send you some of my 6th port top ends.
Also keep your radius tight as possible. In all areas. And add a "brow" if you will on the rear transfer.. As they are the main transfer and benefit from this
Oh shirt... Its jon. Whoops get back to work bud! Lol keyboard warrior for life jk
I have been looking EVERYWHERE for a "How To" on JB welding an intake on a 2 stroke! I finally found one! Thank You sir!
I bet that engine is going to run pretty good crazy that JB Weld will hold up to that kind of thing.
It won't
It won't last long if it ever run
@@joshlee1799 you think so? i'm using jb weld, weicon bicomponent, and pattex liquid steel for years now, every engine still running. Never had problems of it getting loose. I even used it to change angles of the transfer ports in the cylinder. It holds up if you want it to, needs good preparation, clean and rough surfaces.
not only these little engines, but also 125cc 2 stroke motocross ones
Making the hole walls similar to the surface of a golf ball so the JB Weld grabs from it will make it hold better. Mix the JB Weld and apply enough to cover the tape. Let it dry, scrape the surface of the recently dried JB weld and apply another layer, do several layers instead of one lump paste. Will make it much stronger. Applying very fine shavings to the JB weld will make it much stronger as when rocks are applied to concrete and becomes one massive grid.
As an example, when I fix balsa airplanes, wood shavings is applied to the epoxy, or baby powder, it becomes a much stronger bond than just pure epoxy.
Good deal, and thanks for the video
You won't believe how I block off the cylinder end of the intake tract. I found them in a toy section of a department store. I can't remember the name of them, but they are made by "Nerf". They are a tiny little football made of Nerf foam, with a short shaft with feathers like the end of a arrow, (but softer). I just put a piece of clear packing tape over the port, and stuff in the football. Fast and works great.
I love to build reed case kits for TS cases, (and wish Trevor would produce them again), and have been building them for over 15 years now, since Trevor came out with them for the old ISA go-Ped racing, (of which his and my racers won just about every expert and pro race for the last 3 seasons of that series with his cases and our top end kits.), and I never mad a nice block off plate.
I just made a bunch of them, and they will be sold with my top end kits, and singles through DDM for those who want one. They are the best looking block off plates on the market. It took me 4 days to design and make the darn things. :)
I will be shipping some to DDM this week.
By the way, you do better work than some people I know of who do this for a living.
Doug @ ESP
sounds like the nerf bow arrows.
Cool to hear someone that was into go-peds doing things like this. I had a couple that had modified motors running on alcohol that I used to ride around everywhere. Miss the smell of those things! They got me into mechanics and building things and eventually a job at motorcycle dealership in service. Best years of my life!
very beautiful
Epoxy works great for this!
I've been experimenting with JB in the transfer ports of my bicycle engine. I end up removing quite a bit of material from them when I clean up the cylinder ports. So I add JB to the intake sides of transfers and the way jb flows it seems to get me a good angle while still maintaining velocity.
ur like me. i do lots a stuff with my drill press. good stuff. one day im gettin a lathe and miller tho. small stuff ,not micro ,but prob the grizzly $600 odd dollar size. 8x15+ and mini mill none to fancy but enough
Get a used machine the old ones work good
Why the 2 holes in the piston if the extra transfers run all the way to the crankcase?
doesnt make sense in my opinion
I've never seen those gigantic tubes of JB! I gotta get some of those!
Yeah, they're the 5oz. tubes as opposed to the 1oz. You can get them on ebay or an auto parts store...but it's cheaper online.
Napa has them.
I like how the piston skirts now say zenoah on them.
Jon Dillehay that is a zenoah coating. It is ment to run in with the engine to treat both the bore and cyl
Nice 👍👍🌪️
This video is a great help even though I'm porting for a cylinder reed. 👌👍
#2StrokeMafia
Some stütz Kanäle nice.
Hi @TheNoisePolluter, Good job, I would like to know, what kind of tape do you use at the time 2:07? How can I get it?
Amazing work! I just got a case reed pocket bike motor for $47 on eBay to play around with, would you recommend adding one big boost port up the back or doing 2 or 3 thinner ones? I’m looking strictly for lower end punch and don’t worry about ring gap over the port it’s my motor to blow up should worst case scenario happen. I’ll be cutting the new ports on a hobbyist mill and then chamfering by hand.
You should do 2 smaller port and avoid them running into the ring gaps, those engines already have a short piston ring life.
I'm suprised JB weld is withstanding the temperatures and the friction.
Is the stress on material that much lower on RC engines?
I would have guessed totally the other way around.
What is this motor for please comment back thank you
Вы пилили направляющее кольцо вилки мото?)
Trevor is my buddy. It's so weird seeing this.
If you (many people) have done this mod, why cant you get the MFG to make it a standard production cyl like this?
It has been requested many times, but the manufacturers are only interested in making large qauntities for the longterm.
@TheNoisePollutter What kind of multitool or dremel do you use for this?
I'm using a variable speed Dremel 4.0 with an extension attachment.
How long did the engine last?- im writing a paper
Won't that make your engine run really rich? How will you get a small enough jet?
Nope, not at all. The intake port on the cylinder becomes obsolete once you convert the engine into a reed inducted crankcase. So the cylinder intake port is then filled in with epoxy which allows for an extra set of transfer ports. If anything, your engine will be getting getting more fuel. This engines use Walbro pulse carburetors which have tunable high and low speed jets.
ok as long as jb weld is going to hold up. I wonder how long JB weld is going to resist in the cylinder wall....
You work is super elite, Do you do any custom work for private clients? LMK
You could cast a new cylinder matched to your preferences.
JB won't hold up in a combustion chamber I tryed it befor
True! But the intake port on these cylinders sit below the piston when it's at bottom dead center. Also, stuffing the intake port on these is a standard procedure and had been done several thousand times. You can even buy these cylinders ported with JB-Weld.
@@TheNoisePolluter so if its true, or is it not true....?
If you believe the jb weld is fine to use on a cylinder, then build a cylinder out of it and prove it is just as strong as what the factory uses. Jb weld is great, dont get me wrong, just not good with gasoline or high heat applications.
@@joshallen6073 that’s a huge bs lie jb was is fine with gasoline
@@ericsalidbar1693 there are many types of jb weld, jb marine may hold gasoline, havent tried it, if heat, gas, pressure or antifreeze is involved i reccommend permatex 2 part epoxy, permatex also makes kits for fuel tanks and in a pinch a bar of soap will seal a pinhole for about a month. also i dont know where youre from but where i live its almost 20 % ethanol in our fuel, alcohols both ethelyene glycohol (antifreeze) and ethanol eat most epoxies including normal jb weld
why did you make ports in piston? these boost ports are feed from crank case like side ports so no point of piston port feed
promotes better flow to crank case .
I've never seen seen piston windows from indirect induction , I've only seen it from direct from reed through piston window ,,I've read up on top(world champions) spec tuners guides on zenoa's and non have this ,I wouldn't ogmf thought it even run as disrupted induction cycle
And what about the piston ring? if th join part goes in a hole, be sure you ll brake it??
As long as you have bridge-ports separating the ports the ring(s) will be fine on these small engines.
Where is the inlet port now?
This cylinder is moddified for a custom billet reed valve inducted crankcase. The intake/carburetor now feeds into the crankcase Vs. the cylinder port.
Yes!! 😃😁🙃
What's that piece called that you used as a temporary piston?
copper pipe, likely 1.5 in cut down to fit
Nice work, is that an ADA billet head? Do you sell the head kits? I have 2 brand new in box Trevor Simpson reed cases and need head kits for them when I have the funds.
Yes, they're ADA heads, but sorry I don't have them to sell.
@@TheNoisePolluter ok thanks for the reply, where can I buy the lower heat sink sleeve you have used, I was looking at using an ADA head on my new TS cylinder but the TS cylinder has one more fin machined off than the ADA cylinder so it would leave a gap.
The lower heat sinks are not really available anymore, but it's called a Dark Soul 34mm heat shell.
@@TheNoisePolluter arrr so it is just the lower 2 fins of the full billet air cooled heat sink for the marine cylinder, cheers.
How long will the jb weld last in the cylinder ?
JB-Weld in these cylinders will last as long as the cylinder itself.
Where can i buy that piston buy any links please
Go to Dave's Motors or even ebay.
Yes, I make them to sell on Daves Discount Motors. But if they do not stock them, I can make them directly for my customers, including light weight and high rev versions.
Doug @ ESP
so the piston is the side of the ports , yuk ,id liner it so you can a better port shape ,whats wrong with piston ported motors
Is that a chainsaw cylinder? Its so tiny
What's that fin inside the exhaust port for?
That's for the ring gap when the piston is at bottom dead center. The gap in the ring needs to be prevented from pass through any opening in the cylinder wall.
@TheNoisePolluter do you have site or fb so I can ask for a piston and top end Port jobs from you?
you miss matched the piston and the cylinder port that has a bad effect on airflow also if you make this as a performance engine you also need to polish the cylinder ports no oppinion about 6port cuz never tried it
What is this engine for?
These engines are used in various radio control(RC) applications, this will be used in a stand-up Go-Ped scooter.
Point of this ?
used JB on my 4 stroke intake and it Failed in a few months!
What was the JB being used for on the intake? This modification is standard for when using these billet reed crankcase conversions and has been done several thousound times.
it was used to fill in part of the port to change the intake shape completely., not to fill a hole, only to fill space by bonding to the cast aluminum, which it held for a few months but eventually gave way. i believe harmonic vibrations near the camshaft were to blame. tempting to try another product (devcon) but would rather have it welded and not risk it. do not get me wrong i have used it on engine casings countless times and will continue to do so, but not in a port with gasoline.
@@joshallen6073 Does it come in contact with gasoline?
yes, its in the intake, used marine weld
@@joshallen6073 Mabye try the stuff made for gas tanks. Cant remember the brand but out of all of them, only 1 brand worked iirc.
Where's the running engine and what spec performance difference is there ,think people was asking why such a length of the bump in the ex port from inner cylinder to outer port ,I get why as snag the ring but why was it continued all the way ?
dang u skipped how u did the boost ports and kept em square,thats what i wanted to see lol
Do you mean the boost ports in the piston or cylinder? If so, for doing the piston you I just drill a hole through with and hand drill, like you see at: 8:08 and then I use a carbide dremel rotary bit like you see at: 5:40 to then hollow out the boost port I traced out with the sharpie marker.
So you filled the exhaust port with jb weld, how do the gases get out of the engine now?
*Intake port. This is only done if there's a new intake reed valve in the crankcase.
@@TheNoisePolluter thanks for letting me know, cheers
I didn’t see it run ?.......
Te acabas de cargar el cilindro...con lo que le as echo da gracias si arranca y anda..
Nice, I added a boost port in a similar way on a pocket bike engine by widening the intake as far as possible and putting a jb weld bridge in the middle to carve the boost port into. I used hot glue to take up space so the jb weld stayed in the middle, then melted it out. Have a vid of it ua-cam.com/video/ZNhi7pVFZKo/v-deo.html
1001 like
Do you think the 6th porting is worth it over 5th porting?
I tried test reed porting a throwaway head "don't comment on the piston I messed that up? Also didn't have a clamp for the head so its a little crooked but the end result still gave me allot more power then stock.
photos.app.goo.gl/HzpML21o83cbQUS38
Video of engine running. My next head and piston will be done using clamps for precision also im going to make a deeper 5th port or 6th port depending on your answer. photos.app.goo.gl/FmmFHyBFSYUp7afo6
5th porting ideal for if you have larger eye-brow ports the intake side transfer port. and the 2 side-by-side boost ports(6th port) is ideal for if you want to keep the transfer ports as straight-vertical. Zenoah G320RC transfers are more ideal for 5th ports.
@@TheNoisePolluter aight cool. Lastly I know piston windows favor being at the top for midrange power but is it true smaller windows allow more torque or should I just go as big as possible?
@@TrooperManaic The boost port should only be as wide as the port itself and the height be a little taller than the height of the port when at fully exposed(6-8mm).
Non funzioneranno, ti è saltato un pezzo di cromatura dal cilindro si tratta del pezzettino in mezzo ai travasi ed è proprio dove passa il fermo della fascia sul pistone.
Yes this Epoxy method works, everyone who has a 1/5th scale Zenoah CY reed case does this for their 5th or 6th porting. Some 15,000-20,000 cylinders have been done this way.
Ну и что это за хуита в итоге то? Кто в курсе?
Штопар очень близко к окну
Sory- mory bat way! That's smol sitze CC engine Mast have 6 por's. End for'e wath's 2 part's Zylinder oh' i don't understand. End that's JB super glue system meby nice for'e doo' that's.
38.5.1 compression 😂💀
Low torque HIGH POWER
You could cast a new cylinder matched to your preferences.
I'd love more than anything to cast a whole new beefed up ported cylinder with advanced cooling etc., but not all that easy, just watch #2STROKESTUFFING 's channel.