The blinker fluid and muffler bearing comments made me laugh thank you for that!

Holy shit! I never knew my 4 stroke had reeds!! I broke my muffler bearings trying to get to it but now I have it.

I have removed the reed restrictor plates from my bike before. It does work but the problem that eventually shows from doing that is the reeds start to deform slightly and stop making a good seal when returning back to the block. This makes your bike consume a lot more fuel then it normally would. The other risk is the reed has a bigger chance of breaking and going into the cyclinder which will make u have to replace the top end because the piston and rings will get damaged. Could possibly seize the engine as well. I had the fuel consumption problem and got lucky by replacing the reeds and putting the reed restrictor plates back on before they broke. All that being said, you do get maximum power from removing the restrictor plates. It’s a risk.

this may not sound nice but you should just get to the point of what your TRYING to say.

DIOSpeedDemon - "If it is a 4 stroke is hard to find..." LOL ;-) That was a nice one. But do you realize there will be a lot of people looking for it. Nice video keep sharing. Thanks.

Found it!!! Right next to the blinker fluid. Thank you!

yes it would be very hard to find reed valves on a four stroke .....they dont have them.................

I have had this same reed and system in my Dio for 3 years now and it works perfect from start up to WFO- (WIDE F#CKING OPEN) throttle. It does not look factory perfect, but it works like a Ferrari.

:) same here im also a mechanic before in trucks car and bus . and now on motor cycle . i loved people like u sharing, learning . i like it also .

This chan is my #1 place for misinformation

What about reed valves on 6 strokes? Same principle?

Ha! there is a 4 stroke with a reed valve,it is the 1981-82 Honda XR500. those were there to eliminate the low engine speed cough and stall when nailing the throttle.

He failed to mention that a bigger/stronger piston return spring will add more power when coupled to a new power band..😉

Thank you from France, the south City of Toulouse. you make a good teacher (priest)

Make sure to not put the screws back on the reed valve when re installing for proper MAXIMUM Power

Do 3 strokes have muffler bearings?

I am a SR. engine development technician for a leading snowmobile manufacture I have done two stroke engine development for twenty years, all I can say about this guy is (WOW!)

This video made me want to pull my eyes out

Best bit about this vid.....Don't be afraid to ask, ask ,ask until you get it!! My sentiments exactly sir.

Reed flaps are thin and will break over time if they flex too far, That's why it has that stopper.

That reed valve 4 stroke comparison was gold. My friends would have been stumped

Am from the bahamas I have a 250 yz an have reed problems .love the way u broke it down,am mew to this 😅

Lol I’m dead, your jokes at the start reminded me of the pranks we would pull on all the new guys at the machine shop

I run my cr 500 without my reed stoppers ,when you have them in it only restricts them about 1/4" 3/8 " from being stopped by your intake ceiling any way .

July 2021: I came here in lieu of jet ski modification, but the concept is the same. THANKS for the great breakdown and description!

Thanks man! There is a reed valve on my 4t europe peugeot kisbee and mine was broken. No dealer knew about it and after replacing it, my bike feels as new again. Rob and other reactions below it I find them rude rude and silly. I'm glad that my problem is fixed by this.

V Force Reed's come with their own housing if you look them up you would know that

Blinker fluid 😅 I love it

Haha that intro! Brilliant. The blinker fluid!

I hate how all you people are taking this so seriously, dis dude is funny

Do they all supposed to have a reed spring in it? My 99 kx250 does not

Funny. You make MXA look smart today.

He needs some "sky hooks" to hang all that stuff thats crowding his table. When's part2. I swapped all my muffler bearings with a guy on shpock who had a box of random giggling pins, thingymebobs, whatchyamacallits and some tartan paint. Wicked video.

some 80s honda 4 strokes actually had reed valves - no joke

"Jus look at ur reeds" hehe... EPIC...

Here's the real lesson.. look at all comments before wasting your time on the videos.. saves me a lot of time.. here's the best bit often the more informed people put in the right answer to your questions - bong on

Thank you for this video

LMAO I love the description on the 4stroke reeds and chromed bearings couldn't be simpler put... Defiantly helped out ,..too bad I gave away all my 4ts to children Because all 2ts for us adults only! :)

i love this guy

Thanks for sharing your knowledge about reed valvd

I know this is from 2013, however. I'd like to give everyone some tips, if they haven't been discovered yet. You want the reeds to be narrower than the width of the reed block. Not only will this ensure that the reed doesn't rub against the intake, it will decrease the weight of the reed, giving you snappier throttle response. Trim off as mush excess reed material as possible, leaving 1/32 of overlap. Removing the reed stop will allow the reed to open farther, if there is enough air flow, at the expense of shortening the life of the reed due to fatigue.

Just ordered a new fmf loudspeaker for my 2 stroke and also changed the lamp oil. Runs fast AF now!

Yer video just maid my day I haven't laughed that hard all day

5 minutes I will never get back

Some people do not know this but, reed valves on 4 stroke engines are used because of the overlap and duration of the intake lobe on the cam, if there was not a reed valve there some of the a/f mix would come back into the carb.

No insult or complement intended (just a statement), about the knowledge and the lack there of on reed valve design. We all need time to learn but good information from good sources is a must, might I recommend an S.E.A. publication, (DR. Gordon P. Blair’s book, The design and Simulation of Two Stroke Engines) learn the basics like reed block design flow area, realize how reed natural frequency effects design, understand how different types of fiber material and epoxy’s and reed thicknesses effect reed natural frequency’s and the performance of a given reed material, understand the relationships between design flow area and flow resistance, understand the effects of crankcase primary compression ratios and how they effect a given reed design ECT, and no you don’t need to be an engineer to understand this stuff you do how ever need to have good sound information, S.A.E. publications are usually a very good and trustworthy source.

I really appreciate this video because I never knew anything about motors until I got a gt70 and I been adding upgrades and trying to learn everything I can so thanks a million for making this video

This is a pretty good idea, the only problem i could see is if a piece of your reed broke off and got sucked under your crankcase (2 stroke) that would be some really BAD news. So if your gonna do this id replace the valve one every year or two.

best ever! A must have for all!

0:45 The bloke was supposed to be joking but some KTM 4 stroke Enduro bikes DO have reed valves in the induction system.

Some people just don't understand the humor of a 4 stroke power valve.

it's not rocket scientist......

Early Honda xr500 has reed valves in them

So to tune it as I understand from your video, I take it apart and look at it and put it back together?

I usually find that the chrome muffler bearings do not have the lifespan of the higher quality nikasil bearings. Also when replacing said bearings it is advisable to use a proper lubricant for the carrot.

I appreciate your sense of humor, cheers :)

Like the 4 stroke joke lol but thanx for the tips never though a bout my Reed valve as that important but now I'm gonna go work on my reeds

Im sure in certai applications harmonics can also cause the reeds to over extend requiring the reed stops to limit travel and arrest the excitations.

1981 XR 500 has a reed valve and its a four stroke!

I cant find the blinker directional fluid or muffler bearings.

Man I took my muffler bearings off and I cant find my red valve anyplace by it? Should I check under the flex capacitor?

DIOSpeedDemon. Yes they are teens here are crazy for dios,but I think your dio is a lot different than ours manufactured in India.

use a spacer to push back your stop plate i have used old feeler gauges cut down to fit and there thickness is stamped right on them

Next to the power band

the muffler bearing or directional fluid joke never gets old

My three-stroke has the reed valves next to the power band.

Hmm mine has 2 chrome muffler bearings. It must be a special limited edition 4 stroke. Lol.

You made a great video. BTW...i think you'll be a exellent teacher..

sure I can do that I seen it on KZfaq!

DIOSpeedDemon I really apreciate your work im from India and if your dio was here it would be the fastest non geared bike ever.. Keep posting more videos.

Next to the muffler berrings, check blinker fluid check.

I got to get some of that blinker fluid 🤣

Replaced the reed valves for my pw80 drag racing build and I’m telling you the stock 2003 reeds were in it and they were pretty shitty looking I replaced them and I had a lot better throttle response and she started easier and rand so much better

Very good videos to go to sleep.... 5 minites job in 7 videos.....

I have a new set of reed petals I am installing one side is waxy texture and other is smooth texture.... what side is facing inside engine to case and vice versa what side has air/fuel entering against it.... I put the waxy side touching the cage so the air fuel mixture will touch the waxy side of the pedal... let me know if I need to change orientation.... these are R&D dominator m16 reed cages, also noticed this reed kit doesn't come with reed stops and are prone to premature chipping and wear.... would it hurt to add my own custom stops from the stock cages?

Hey brother I got a quick question if you don’t mind, I got a old 60hp Johnson and one of the sets of reed valves on the top carb is slightly open can I take the reed out and try to bend it back slightly? So that it sits closed it’s only open like a 1/8th inch or less, I can see like threw it

See I listen to you now my blinkers are leaking fluid, and my muffler bearings came apart,🤦 I guess I should upgrade the dozer valve on my carb to help the fuel injection work better!

It works

Didn't know CT was so common, reminds me of exigent circumstances.

The breaking by bending back and forth you described as making the metal thinner...🙄 Is actually called work force hardening, the bending back and forth causes the metal to become brittle and then snap, other than that I've learned something thank you

first of all, nice educational video man, i can see you have a real gift for these sorts of things, might i add that maybe it isnt such a good idea to leave the springs of, especially when considering that some bikes have metal reeds... and like you said, they can become quiet fatiqued and without those springs, they will sooner break and make your bike go clank clank in wich a "chaos like" revising operation is necessary... ofcourse what i am saying increases its moral value exponentiolly, the more tuned or the more rounds per minute the engine can deliver... also messing around with the pre ignition ( wich some Capacitor discharge ignition (cdi's) units are tuned for) may cause these puppies togo bambam.. so yeah, anyway thanks for the video, i liked watching it. regards, a Ðا operative

sir thank for your vid...it's really help my suzuki address 100...more speed!!

I was experimenting with this when i was twelve .on a 82 rm 125 simple concept

I ported my muffler bearing for more power but needed to remove the reeds for more wheelie power in my 4 stroke. With them it wasn’t hitting the power band 😅🤦🏻‍♂️

These comments got me on tears

Can you please add a part two and three to this video?

Thank you for your shared knowledge

im a mechanic and um 4 strokes have never have reed they have valves an intake valve then a exhaust valve so

What The setting adjustment on Reed valves I set mine at 16 thousands and runs great! Lol

He said blinker fluid hahahaha

What about grinding the exhaust out let port on the head (Restrictor) as well as doing this to the reds?

Very informative thank you. voice sounds like Vin diesel.

Oh now i see my reed valves on my 4 stroke, right next to the blinker directional fluid how could I be so blind!

And what does honda-Polaris

No clue if you read the comments on your videos bud but just an FYI I didn't called that name by Hawaiians is actually a derogatory name. From what I've heard it's from them referring to American to her always hollering and hooting shouting being obnoxious. Is where that nickname came from

Thank you, Teacher . Now I have some idea what reed valves are. I am considering having a really fast two stroke scooter when I can fit it into the budget. I currently have a four stroke 125 cc GROM mini-moto and I am getting tired of wasting money on state mandated insurance and tags.... At last talley , 7 states, "I think" , do not require tag or plate on 49cc and South Carolina does not even require driver license for small Engine scooters... South Carolina does however enforce a minimum age of 13 for scooter operation on street. Otherwise,same rules as bicycle... South Carolina is unique in this. I am not aware of any other states that require no driver license to operate a scooter or moped on the streets.

next to the muffler bearings XDDDD

You forgot to mention that you need a left handed snipe ratchet to remove the port side bearing in ALL 4 stroke dual muffler bearing applications.

Took my "springs" off they kept my reeds from opening

WHAT IS IMPORTANT ABOUT THIS VIDEO.....IS..THE ...REED...MATERAL...THAT IS THE KEY. Boyeson Reed Material.