Re: Re-working the jawa/e50 build.

Alex Hedrick /

Could it be timing or jetting?? Or the carb??

Re: Re-working the jawa/e50 build.

Alex Hedrick /

Here the timing with a good timing light. It's pretty much spot on.

Then I hear this shit as its warming up more..

I'm so tempted to just buy a better cylinder and run reeds... damnit

Re: Re-working the jawa/e50 build.

Brandon Weiss (Detective brandon to you) /

maybe its the treats cdi?

Juch :)

Re: Re-working the jawa/e50 build.

Alex Hedrick /

> Brandon Weiss (Detective brandon to you) Wrote:

> -------------------------------------------------------

> maybe its the treats cdi?

>

> Juch :)

I've been also thinking that Too. What would the chances of that being it tho? I mean. Yes.. it could totally be the problem, I had a big problem setting timing cause I had a bad pietcard box.. making it almost random. Slapped a new one on and this is 10x better than what it was. Now it just wont rev out...

Anyone give me some ideas, I'm stuck here.

Itll be good to just cruze around but who the hell wants to JUST cruze.. not me.

Re: Re-working the jawa/e50 build.

Brandon Weiss (Detective brandon to you) /

If i were you i'd source a good o'l fashioned bosch points ignition and eliminate that treats cdi as a variable. I've never dabbled in those, only HPI so far, but i've heard so many bad stories about them i wouldn't even use one if it were free.

Re: Re-working the jawa/e50 build.

Alex Hedrick /

I do have the stock ignition flywheel, plate and coils.. I'm really thinking that's the problem..

I mean it's good for a non ripper, good lighting power too. But, I'm gunna buy a new cdi tonight.. i want something with a curve and I still need lights..

What do you think i go with?

I'm thinking hpi mini?? Trying to keep $$ down as this has to be the last thing I get for this thing.

Re: Re-working the jawa/e50 build.

Brandon Weiss (Detective brandon to you) /

> Alex Hedrick Wrote:

> -------------------------------------------------------

> I do have the stock ignition flywheel, plate and coils.. I'm really

> thinking that's the problem..

>

> I mean it's good for a non ripper, good lighting power too. But, I'm

> gunna buy a new cdi tonight.. i want something with a curve and I still

> need lights..

>

> What do you think i go with?

>

> I'm thinking hpi mini?? Trying to keep $$ down as this has to be the

> last thing I get for this thing.

I wouldnt go hpi unless you get the 300 gram weight with it. I ran the mini rotor as is for awhile...and while it did rip, it was not great for a daily bike. The rotor is so light, about 1/3 the weight of the original, and also way smaller in diameter, so it makes a consistent idle damn near impossible not having the momentum to help carry through each stroke, especially with high compression setups. Supposedly the weight helps the crankshaft bearings last longer as well.

Re: Re-working the jawa/e50 build.

Alex Hedrick /

> Brandon Weiss (Detective brandon to you) Wrote:

> -------------------------------------------------------

> > Alex Hedrick Wrote:

>

> > -------------------------------------------------------

>

> > I do have the stock ignition flywheel, plate and coils.. I'm really

>

> > thinking that's the problem..

>

> >

>

> > I mean it's good for a non ripper, good lighting power too. But, I'm

>

> > gunna buy a new cdi tonight.. i want something with a curve and I

> still

>

> > need lights..

>

> >

>

> > What do you think i go with?

>

> >

>

> > I'm thinking hpi mini?? Trying to keep $$ down as this has to be the

>

> > last thing I get for this thing.

>

> I wouldnt go hpi unless you get the 300 gram weight with it. I ran the

> mini rotor as is for awhile...and while it did rip, it was not great for

> a daily bike. The rotor is so light, about 1/3 the weight of the

> original, and also way smaller in diameter, so it makes a consistent

> idle damn near impossible not having the momentum to help carry through

> each stroke, especially with high compression setups. Supposedly the

> weight helps the crankshaft bearings last longer as well.

Thanks for that info! Probably just saved me more headache!! I got it the mini with the 300g weight.. I honestly think anything will be better than the treats cdi at this point.

Like I said I like it. For a non ripping moped. But I'm trying to get more out of this setup yet still have it be my semi daily rider.

I noticed on the treats cdi flywheel isnt very "true" as in it has a bit of run out making for one hell of a vibrator at sertant rpms.. no wonder why my girlfriend liked it so much... huh.

You can tell in the video it's almost a mix of a lean bog and ignition troubles.

Will report back in a few days when I get the goods!

Re: Re-working the jawa/e50 build.

Brandon Weiss (Detective brandon to you) /

You can rip dicks on points fyi, but it seems that you really want a cdi in any case. Get yourself a cheapo voltage regulator so you dont blow your lights. And, make sure your grounds are absolutely solid, and that you run EITHER a resistor plug, or resistor boot, not both.

Re: Re-working the jawa/e50 build.

Alex Hedrick /

> Brandon Weiss (Detective brandon to you) Wrote:

> -------------------------------------------------------

> You can rip dicks on points fyi, but it seems that you really want a cdi

> in any case. Get yourself a cheapo voltage regulator so you dont blow

> your lights. And, make sure your grounds are absolutely solid, and that

> you run EITHER a resistor plug, or resistor boot, not both.

I know I know.. I'm pretty familiar with points ignitions too, I just really want something new to mess with, and i mean.. you cant beat having a nice curve to your ignition to really get you into your pipe. Idk. Could just be me.

I've got nice solid ground points already from this treats cdi, and I got a new regulator cause fuck it.

I'm interested to see how the hpi mini comes into play.

Just a few days and we'll see!

Re: Re-working the jawa/e50 build.

the does not sound like it is in your carb. i would absolutely say and element in your ignition is to blame. first check your grounds and second check you box and then go from there.

Re: Re-working the jawa/e50 build.

i didn't see the part about the pietcard box.

i fried one of these a few years ago and cut it open, turns out the main power capacitor in there is rated 150v which is way less than the treat cdi is capable of putting out. the components are also sub-garbage.

they work fine when paired with a low-output Pietcard internal coil, but they are likely to get fried hooked up to a treats CDI. The 13 dollar 'scrappy dog scooters' Jog cdi works good with the Treat CDI, until the trigger coil burns out.

The treat CDI can be made to work, but woof, its a pain in the ass. Way better options out there. Sounds like you are on the right track. I have seen them break up at high rpms but they don't sound like that when they do... which isn't to say its not possible that is your problem, just saying, when i've had them go out, that is not what they sound like.

I would be running points on a setup like that, and certainly first thing i would try for trouble shooting is to go back to points to eliminate the variable.

Re: Re-working the jawa/e50 build.

Alex Hedrick /

> Graham Motzing Wrote:

> -------------------------------------------------------

> i didn't see the part about the pietcard box.

>

> i fried one of these a few years ago and cut it open, turns out the main

> power capacitor in there is rated 150v which is way less than the treat

> cdi is capable of putting out. the components are also sub-garbage.

>

> they work fine when paired with a low-output Pietcard internal coil, but

> they are likely to get fried hooked up to a treats CDI. The 13 dollar

> 'scrappy dog scooters' Jog cdi works good with the Treat CDI, until the

> trigger coil burns out.

>

> The treat CDI can be made to work, but woof, its a pain in the ass. Way

> better options out there. Sounds like you are on the right track. I

> have seen them break up at high rpms but they don't sound like that when

> they do... which isn't to say its not possible that is your problem,

> just saying, when i've had them go out, that is not what they sound

> like.

>

> I would be running points on a setup like that, and certainly first

> thing i would try for trouble shooting is to go back to points to

> eliminate the variable.

Yeah man, totally not the right kind of ignition for this setup.. I mean it does work, but not good enough for me haha. What you are hearing in the video is almost what it was doing before the new 2041 postcard and new pickup coil. I went with the better that treats has. And it did indeed help out a ton. But still having the "lean bog symptoms"

But before with old pietcard and pickup, spark would just cut out totally at high rpm..

I know I could slap points back on it and shred, but what's the fun in that if I dont have to dick with it for another week or so hahaha

MOPEDS!

Re: Re-working the jawa/e50 build.

well the fun is finding out that its your problem so you know where to focus your time and money, haha.

almost every time i build an engine i set it up first with points at very conservative timing just to test and tune, then once i get the carb where i want it, i'll put on the CDI or whatever and proceed to tune timing with a good carb baseline.

Re: Re-working the jawa/e50 build.

Alex Hedrick /

> Graham Motzing Wrote:

> -------------------------------------------------------

> well the fun is finding out that its your problem so you know where to

> focus your time and money, haha.

>

> almost every time i build an engine i set it up first with points at

> very conservative timing just to test and tune, then once i get the carb

> where i want it, i'll put on the CDI or whatever and proceed to tune

> timing with a good carb baseline.

I can dig it, and normally I do start off like that with almost any engine I build out.. I just felt like doing something different this time (aka make it harder on myself) I enjoy the time I spend on these kinds of things. Keeps me busy and the ol lady out of my hair haha

Re: Re-working the jawa/e50 build.

Some Jawas were already equipped with a Puch engine (from the factory)

They were sold as "Manet Korado"

Re: Re-working the jawa/e50 build.

Alex Hedrick /

> Max Ginsburg Wrote:

> -------------------------------------------------------

> Some Jawas were already equipped with a Puch engine (from the factory)

>

> They were sold as "Manet Korado"

Huh! Pretty interesting! This one I think not so much,

You can tell that motor mounts are custom.

Re: Re-working the jawa/e50 build.

There is some info about that model

http://www.jawamoped.com/html/manet_korado.html

Re: Re-working the jawa/e50 build.

kevin Smellaflange /

so to back up...

your circlip should be a uppercase ''G'' shape?

going to the left of this page?

Re: Re-working the jawa/e50 build.

Alex Hedrick /

Well! I got the hpi mini in, just got it on, holy shit is that easy.. haha set the timing 2mm btdc. And it fired right up. On a cold start, for anyone who's in michigan knows I mean it's cold right now. Let it idle for a while, no problems there. (I did not put the flywheel weight on it) just to see and it seems good without it for now. After it warmed up to about 190°f I started to clip the throttle a little and FUCK!!!! Instant response, I reved it out a little (still being careful to go easy for now since I just put it all back together) and shit. Huge difference fr pro m the treats cdi! I had to go rip it for a sec.

HELL YES! That's all I've been missing is damn good ignition to light this beast up! STILL GOING EASY.. but man what massive difference! I'm going inside to warm up a little, I'll come out in a few and take a video or two and show you guys!

Re: Re-working the jawa/e50 build.

Musta been really cold . It's been an hour and a half , now , and still no video . :( lol

Re: Re-working the jawa/e50 build.

Alex Hedrick /

> P D Wrote:

> -------------------------------------------------------

> Musta been really cold . It's been an hour and a half , now , and still

> no video . :( lol

Haha it's pretty cold! I got caught up relaxing, been at work all day and then I came home and out the hpi on, I'll get out there in the next half hour or so. I need to get up to the store and get some atf so I can put the jammer clutch on!

Re: Re-working the jawa/e50 build.

Alex Hedrick /

And there you have it, it actually revs out now, I made the mistake of pulling the boot off the plug to kill it the first time. I actually got some nice voltage to the fingers haha gotta hook up the kill switch and boom. Done. For now!

Re: Re-working the jawa/e50 build.

Alex Hedrick /

> Alex Hedrick Wrote:

> -------------------------------------------------------

>

>

> And there you have it, it actually revs out now, I made the mistake of

> pulling the boot off the plug to kill it the first time. I actually got

> some nice voltage to the fingers haha gotta hook up the kill switch and

> boom. Done. For now!

That was a cold start too, didnt really let it warm up. Whatever.

Re: Re-working the jawa/e50 build.

Brandon Weiss (Detective brandon to you) /

DON'T pull the plug boot off to kill it. You can fry the cdi. If your'e ever spinning it over, the plug must be grounded to something.

Re: Re-working the jawa/e50 build.

Brandon Weiss (Detective brandon to you) /

Also, sounds great. Post some ride footage up

Re: Re-working the jawa/e50 build.

Sounds like it's running pretty good . ;)

Re: Re-working the jawa/e50 build.

Alex Hedrick /

> Brandon Weiss (Detective brandon to you) Wrote:

> -------------------------------------------------------

> DON'T pull the plug boot off to kill it. You can fry the cdi. If your'e

> ever spinning it over, the plug must be grounded to something.

I know better than that too.. haha I was just stoked that it fired right up, like the second I hit it with the drill it started immediately!

I'll try to get some riding footage soon. It's just to damn cold for anything right now haha

Re: Re-working the jawa/e50 build.

nice! hopefully once you get her on the road she tunes up and runs good.

i had to do the same thing, put my ciao in the barn until it warms up... next project!

Got the VMax back together and running this weekend too! Time to focus on sleds and just stack up bikes to get tuned come spring.

Re: Re-working the jawa/e50 build.

Alex Hedrick /

> Graham Motzing Wrote:

> -------------------------------------------------------

> nice! hopefully once you get her on the road she tunes up and runs good.

>

> i had to do the same thing, put my ciao in the barn until it warms up...

> next project!

>

> Got the VMax back together and running this weekend too! Time to focus

> on sleds and just stack up bikes to get tuned come spring.

I'm right there with ya! Sled time here in michigan!!

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