Cheapest Reed Valve Install and First Ride

Cheapest Reed Valve Install and First Ride - Mk3 Motorised Bike

Рет қаралды 10,371

2 жыл бұрын

I bought the cheapest reed valve kit on eBay for the 66cc 2 stroke on my Mk3 Motorised Bike. Today I bolted it straight onto the engine just to see what would happen. Now, I know what everyone says, you HAVE to have a windowed piston and an expansion chamber exhaust for a reed valve to "work properly", but I want to experience this for myself. In my opinion, if the reed valve doesn't make SOME improvement by itself, there's no point in changing anything else. Plus, this is my bike so I'll do whatever I want to it!
It ran surprisingly well for a bolt on part, but before I go ahead and start putting holes in my piston, I want to tune the carburettor properly first and sort out the air leaks which have started to rear their ugly heads.
The bike ran really well for the first time with a reed valve, but I've got one video coming up which is a night ride, which although you will not be able to see much, you'll be able to hear the bogging and the terrible running due to the vibrations causing the carb to slip off the intake and also the choke vibrating up and constantly causing the bike to stall.
In the near future I plan to address these issues and get the bike running properly before I go ahead with any more modifications.
Does anyone actually read these? Let me know in the comments if you did!
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I really want this channel to do well, and I need your help to get my videos out there!

Пікірлер: 112

@NicksBikes Жыл бұрын

BEFORE YOU TRY TO TELL ME WHAT I NEED TO DO - MAYBE YOU SHOULD FINISH WATCHING THE VIDEO FIRST - OR AT LEAST WATCH THE SHORT VERSION HERE: kzfaq.info/get/bejne/j5iigLx-vL7ekoU.html

@chemscrambler7589 25 күн бұрын

well hell yeah. i was gonna jump the gun. based on what you first said

@nickolasedmunds 13 күн бұрын

Crazy how Reeds give less power on these China dolls and windowed pistons aren't making much difference. This bikes sounds lean with a reed, Very cool to show your experience 😎.😮

@Motorizedstuff 2 жыл бұрын

Nice cruise bro

@HanzelFonferek 2 жыл бұрын

Awesome video bro!

@NicksBikes 2 жыл бұрын

Thanks

@BurleyBob0010 8 ай бұрын

These guys are correct you need to window the piston and do port work on those china dolls. I got a phantom 85 and after proper break in my bike, a SixThreeZero Hybrid boogies right up any hill in New Hampshire. If you live in the mountains the phantom with 40 tooth is the recipe.

@NicksBikes 8 ай бұрын

did you even listen to what I was saying?

@manuramos9638 7 ай бұрын

Robert how do you do the phamtom. Work! I just get version 3 and i cannot get the correct carburation adjust!!!

@kurry2349 2 жыл бұрын

Flip over the reed valve and have the carb come out the other side of the bike, so you can adjust the idle.

@NicksBikes 2 жыл бұрын

Good advice. I chose that side because of the fuel line being a bit neater. If I keep having idle issues I may have to swap it

@Westhelockpicker Жыл бұрын

Most videos people also add a big carburetor but they still only hit around 40 mph anyway. I can do 40 with just a high performance head and exhaust with a ported cylinder. No windowed piston or reed valve and the stock NT carburetor with a much bigger jet and play with the timing a little bit

@jamesgnarkill3112 2 жыл бұрын

The... Reed valve I got came with rubber gaskets which just got ate up...but just got the new gaskets made..I also dropped the floor of the intake and have windowed piston... haven't turned it over yet but later this week is will be nice enough to ..ride on

@jeffgause5769 8 ай бұрын

Sound just like me working on my bike

@Littleevil9975 2 жыл бұрын

Great video bro nice work to

@NicksBikes 2 жыл бұрын

Cheers, thanks for the support

@Littleevil9975 2 жыл бұрын

Welcome bro any time

@fabiotiburzi 2 жыл бұрын

You need to make a hole in the piston and the third transfer port to really have some benefits over the stock piston ported engine

@motorizedbicyclenation53cu90 2 жыл бұрын

Ya can have one and. NOt the other tho like a third transfer or a hole in the piston

@fabiotiburzi 2 жыл бұрын

@@motorizedbicyclenation53cu90 there is a reason if every two stroke with reed intake has the third transfer and the hole into the piston

@2bit2strokes38 2 жыл бұрын

Third transfer port works too

@scottwing6273 Жыл бұрын

In my experience, windowed piston✓ 3rd transfer port✓good port job✓ Non synthetic mix oil for first tank. I've came to the conclusion that this reed valve has too much air volume inside creating a bottle neck at intake port(no good) 4petal cage is prone to developing hairline fractures along edges giving symptoms of an air leak.that was seemingly impossible to nail down. Go with the smaller single(dual) reed valve+carbon fiber reeds, coupled with a walbro carb(028stihl) then no more fiddling with jets or emulsion tube.on a carb more suited for4stroke application. Similarly to nitro rc these motors can be sensitive to atmospheric conditions an it'd be nice to adjust on the fly. (28°f AM temps vs 50-60° pm temps)

@samazd4015 Жыл бұрын

May i ask how you did this, i want to try it

@NicksBikes Жыл бұрын

I never got around to it. Too many other problems with the bike and then it got stolen before I ever got around to it

@joneserupinsmoke9161 2 жыл бұрын

But I have a bt and a yd 100 bottom want to put a 56 mm piston in the yd rally don't know what I can do with bt

@joneserupinsmoke9161 2 жыл бұрын

It's crazy how we need a window piston to make them work huh.but yea man u can't put a window in with out reed I blew my 1st engine piston and thought I could use a window NOPE lol it say Ard the whole winter but just put a reed on it and they do make a big difference.all I need for that one is a real expansion chamber to see how much I can get out of one a little 47 mm Pistons

@peterfreekinpan1300 Жыл бұрын

The way it just revved out like that on you sounds like you have a bad air leak on the intake side I would assume probably where the Reed valve mounts to The jug or where the four bolts hold the Reed valve in the cap on the revo

@NicksBikes Жыл бұрын

I agree, air leak, but I think it's coming from the neck at the carb, as I never put any tape or anything on to stop the leaks. I'll get back to this project once I can afford to repair the rear wheel hub

@rogerstafford-wakeinc.2088 2 жыл бұрын

Did you actually run that without a window piston and just put the reed on..? Been waiting to tear it apart to make big adjustments but it’s very cold here now. Don’t want frostbite when it’s starts as is. Very curious for your reply..Godspeed.

@NicksBikes 2 жыл бұрын

Yes! I wanted to see for myself if you can tune for reliable performance without windowing the piston. Long term goal is to tune, window piston myself, tune again and if I get passsble performance with the windowed piston, remove the reeds once again and compare. It's been well established that reeds will harm performance without rejetting the carb so I just want to experience the difference for myself. This project had to be put on the backburner until I have some income again so unfortunately it's taking longer than I would like

@rogerstafford-wakeinc.2088 2 жыл бұрын

@@NicksBikes I think that is the source of the heat. I have heard you cannot run a reed without the window...? Amazing no wrong answer, just what works for you is the right way. I’m learning something now. And maybe I’ll try putting mine back on without the window piston..Godspeed

@HanzelFonferek 2 жыл бұрын

Cool bro! Much added speed?

@NicksBikes 2 жыл бұрын

Too soon to tell. It felt smoother at open throttle, but the vibrations make the carb slip off the intake. I've got a few things to sort out

@HanzelFonferek 2 жыл бұрын

@@NicksBikes nice

@Adalbertomatos_ Жыл бұрын

You feel the bike no have power with the reed valve ? Is because You need Windows pistón for use reed valve

@Adalbertomatos_ Жыл бұрын

For put that g2 reed valve is better take off the jog out and You know You need Windows pistón for reed valve righ ?

@presleyfleckmotorizedbikef4285 2 жыл бұрын

It blows out the top of the gasket because of back pressure

@wonderwond Жыл бұрын

do you know how to adjust the air mixture on it? I bought the same one with the reed. seems sluggish

@NicksBikes Жыл бұрын

Yes, I've been at this a few years now. This project is on the back burner until I can get a new wheel for it, but I expect I need to up the jet a few sizes. Ultimately it runs sluggish because I'm not yet running a windowed piston. The long term plan for this project was to upgrade and change just one thing at a time so I can experience what each individual change does. I didn't want to just buy a prefabricated reed and windowed piston kit, the plan is to do it all myself, just to see if I can

@wonderwond Жыл бұрын

@@NicksBikes I bought the same reed kit Im pretty sure, mine has no real RPM power, seems just boggin slow , flooding maybe? I read that by using the larger 22-25mm carb is due to its main jet needing to be smaller, someone said around a size 55-60, not sure what size comes in the carb tho..maybe you can join me and my womans discord server sometime, we are always on it just jabbering,we put her computer in a diff room so we can hear ourselves bettter, your welcome to join anytime------ oh my bad,, my reed kit came with a larger carburetor , yours is like a stock carb ???

@NicksBikes Жыл бұрын

Yeah I'm using a stock NT

@shanegrundy8553 3 ай бұрын

For them hills u need bt100 or yd100

@NicksBikes 3 ай бұрын

The BT100 blasted those hills! You should check out my Mk7 build, it's a BT100 with 56 tooth sprocket

@backwoodsjunkie08 Ай бұрын

Doesnt sound like its running right.... Sounds like it leans way out the higher the rpm goes, it also surges after letting off the throttle just like a runaway effect. Def needs the carb tuned way more rich

@NicksBikes Ай бұрын

Yeah it was a warped reed if memory serves

@lucaslucas8854 2 жыл бұрын

I made the transfer port, the engine runs more, even so it's weak on the way up, I'm going to make the window on the piston, if it doesn't work out I give up lol

@darkraft100 2 жыл бұрын

It worked?

@artofdisguy3401 2 жыл бұрын

Gaskets blow out the top due to being the weak point,the weight and bouncing creates a pivoting effect pulling in the direction of gravity,.

@NicksBikes 2 жыл бұрын

Huh. Awesome! Thanks for that 😀

@marthamryglod291 Жыл бұрын

I fixed the gasket issue with cutting the intake pipe and using coolant hose to allow the carb to flex a little. Just took off about 5mm of intake, and used the hose to put it back together.

@mikemiller3303 2 жыл бұрын

Happy New Year Fellow bike builder get a window piston 1 with 2 oval holes and a keihen carburetor and a mz65 clone expansion chamber pipe put a badass shark Silencer and she will be flying that's what is on mine ride safe my friend

@NicksBikes 2 жыл бұрын

I plan to window this piston myself.... Eventually 😅

@jerryb1234 2 жыл бұрын

"Because I know it's going to be shit", lol, your right, Rob proved this on the engine dyno, without a windowed piston, your engine will really lose horsepower, some of that copper-spray gasket stuff is needed to make any reed-valve air-tight, Don't blame your screw-ups on us!, lol, are you a smoker Nick?, your sure huffing-n-puffing like one, lol, I'm really surprised it wasn't idling too the moon, if/when you do the windowed-piston, I wouldn't take the reed-valve off or touch it, it sounds like you may have gotten lucky with it sealing, thanks for sharing.

@NicksBikes 2 жыл бұрын

Nawww I just got fat and unfit lol. That back yard hill is a lot steeper than it looks on video! My theory is to get it running smoothly before windowing the piston and I think you may be right about leaving the reed where it is

@Adalbertomatos_ Жыл бұрын

What is that blue shit un the trotel cable in the carb.

@NicksBikes Жыл бұрын

cheap sticky tape because I ran out of zip ties and I am poor

@rogerstafford-wakeinc.2088 2 жыл бұрын

Doubt it’s the idle screw brother. I have heard the blow back from exhaust pressure will cut them out hard to idle but run well. Idk?? I thought you were gonna spray ether and almost jumped back and had to laugh when I saw you checking for an air leak.

@NicksBikes 2 жыл бұрын

Oh there's definitely an air leak in there somewhere

@rogerstafford-wakeinc.2088 2 жыл бұрын

@@NicksBikes the “less inferior “ oz or rsm reed is supposed to be the better bees knees. If that doesn’t work and you still fancy the tinker perhaps 30$ well spent. ⚙️🚲⚙️

@and-rd6641 2 жыл бұрын

This high iddle problem can be solved by either loosening the idle screw, or increasing the size of the jet, but not too much, or filing the carburetor needle in the part that is open to the idle. if your spark plug is white and dry it is very dangerous to walk like that, better adjust the needle, lifting it, putting the lock further down, if the spark plug is black and dry, everything is fine, if it is wet and black, drop the needle. Check that there is no air leak in any part of the engine, carburetor, cylinder, exhaust. this should all help. what helped me the most was to increase the size of the jet and file the carburetor needle

@NicksBikes 2 жыл бұрын

Oh yeah, all good advice. But not my first rodeo. Just my first reed valve 👍

@and-rd6641 2 жыл бұрын

@@NicksBikes oke

@leonardarola 2 жыл бұрын

Everybody now Reed, eh!? Month later, how do you like it?

@NicksBikes 2 жыл бұрын

I haven't actually ridden it since. I plan to get back to it eventually

@curitosikls8653 Жыл бұрын

REJET YOUR CARBURETOR, your running lean, after changing the intake manifold, try to either adjust the carburetor jet needle, or just buy a pack of main jets, they are extremely cheap. Just check the spark plug after you rejet, if the insulator tip is a milky brown your good, and if not and it's black , that's carbon or oil fouling, and if it's still white, clean, or has blisters then it's lean.

@NicksBikes Жыл бұрын

Dude all my bikes were stolen last year. I never got the chance to finish this project

@curitosikls8653 Жыл бұрын

@@NicksBikes oh no that's horrible, I've had my bike stolen too and not gonna lie, I really hope things get better, having any bike stolen is an honest to goodness horrible feeling, I wish the best luck, and again I'm actually super sorry for texting all of that too late, it's just I love to help people out with stuff sometimes, and no I really do hate it when people steal bikes.

@NicksBikes Жыл бұрын

It's good advice nonetheless and much appreciated. Truth is, this bike was a bit rubbish and needed more work than I was willing to put into it by the end

@presleyfleckmotorizedbikef4285 2 жыл бұрын

Definitely window your own piston it's worth it

@presleyfleckmotorizedbikef4285 2 жыл бұрын

I put two perfect round holes in my piston and my 80cc is bitching

@presleyfleckmotorizedbikef4285 2 жыл бұрын

Idols like a top

@jamesfowler1955 2 жыл бұрын

Not enough tape 😂, maybe more air flow.

@joneserupinsmoke9161 2 жыл бұрын

Bro u should see some of the home hacks I done in past and shit I had to do to get back home blaah hahaha some MacGyver s***

@presleyfleckmotorizedbikef4285 2 жыл бұрын

Did you modify your muffler I noticed you have a stock muffler if you take the cap off and cut the pipe it will give you like an expansion chamber experience

@NicksBikes 2 жыл бұрын

Yeah I always cut the pipe 👍

@presleyfleckmotorizedbikef4285 2 жыл бұрын

@@NicksBikes I got a yd 100 motor I have a stock pipe so I modified it for my motor I'm putting on a jackshaft it's going to be sick

@NicksBikes 2 жыл бұрын

When I finally got around to cutting the pipe on the BT100 it made a huge difference

@presleyfleckmotorizedbikef4285 2 жыл бұрын

@@NicksBikes that's what I like to hear brother because I want to hear some RPMs

@413MassDigger 2 жыл бұрын

the reason im not looking forward to doing this...is because i know its going to be shit lol... i say that before every upgrade i do to my bike lol nice

@joneserupinsmoke9161 2 жыл бұрын

To much air getting on try to run half closed

@NicksBikes 2 жыл бұрын

I need to find a new rear wheel for this bike before I do anything else. I blew the wheel bearings on the gear hub running the chain too tight. I'll get back to it eventually.

@2bit2strokes38 2 жыл бұрын

Definitely window your piston yourself. And don't make the window too big. Smaller window works better than the window piston they sell. That's just my experience

@wonderwond Жыл бұрын

anyone got pictures or video's on how to window it?

@stephenjohnson6967 Жыл бұрын

@@wonderwond LA HOVER BIKES KZfaq channel

@samazd4015 Жыл бұрын

Does a window piston and this reed valve kit work well?

@theLyzhendricks 8 ай бұрын

@@samazd4015from what I've seen its the best mod u can do for these little motors that plus exaust

@Adalbertomatos_ Жыл бұрын

Is You not have Windows pistón is better put back the factory intake is go work better

@NicksBikes Жыл бұрын

The point in this experiment is to experience the difference for myself

@Adalbertomatos_ Жыл бұрын

I Bet You from England

@NicksBikes Жыл бұрын

Australia...so....basically, yeah

@wonderwond Жыл бұрын

get the newer updated pull rope

@NicksBikes Жыл бұрын

Why?

@wonderwond Жыл бұрын

@@NicksBikes pull start without wearing ya self out peddling

@wonderwond Жыл бұрын

@@NicksBikes be sure if you get one to NOT get the older model, cause it sucks bad

@wonderwond Жыл бұрын

this is the newer one I got

@NicksBikes Жыл бұрын

I've considered it in the past, something I might consider in the future. How do I tell the difference?

@Adalbertomatos_ Жыл бұрын

🤣🤣🤣🤣🤣

@Adalbertomatos_ Жыл бұрын

The air leak is not come out from the carb cap is come out from the reed valve gasket

@BOOMBOOMRacingGERMANY Жыл бұрын

Very slow make some Aceton in Yourr fuel

@NicksBikes Жыл бұрын

Many reasons why this build was slow. 56 tooth sprocket for one. Mainly though, slow because there is no window in the piston. I had planned to do a comprehensive test to see what modifications hindered or helped. Currently needing a new rear wheel before this project can continue

@BOOMBOOMRacingGERMANY Жыл бұрын

@@NicksBikes stock works with reed valve good if you use bigger injection jets + aceton 300 ml by per liter petrol + graphit 3-5 tea spoons + 1 liter petrol= mix up and feel the real fast and furios youre engine gonna NOS tuned likes

@NicksBikes Жыл бұрын

Thanks for the advice! I'll keep it in mind when I get going again

@BOOMBOOMRacingGERMANY Жыл бұрын

@@NicksBikes no Probleme only Use graphite for Aceton, nitro or Methanol