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Scooters - 50cc => zx50 => Topic started by: dyowell on May 07, 2010, 04:44:47 AM

Title: How fast can your ZX50 go after upgrades?
Post by: dyowell on May 07, 2010, 04:44:47 AM
how fast is ur ZX50?mine is 90 kph after upgrades..i just wana know..thanks
Title: Re: How fast can your ZX50 go after upgrades?
Post by: zombie on May 07, 2010, 07:26:10 AM
62-64 at my best! Malossi/R2/cajones 50-56 cruise (allday)
Title: Re: How fast can your ZX50 go after upgrades?
Post by: Shaka on May 07, 2010, 10:51:46 PM
I've had mine at about 91-92 km/hr tops on the flat! ;D  What mods have you done?
Title: Re: How fast can your ZX50 go after upgrades?
Post by: thebatman on May 09, 2010, 01:37:23 AM
 :o  :'(, right now my top is only 52 on a real good day, avg. cruise is bout 47, but then again i think sumdays i can call her CHRISTINE!!!..RLMAO..
Title: Re: How fast can your ZX50 go after upgrades?
Post by: wordslinger on May 19, 2010, 01:08:27 AM
...what upgrades heve you done??

..and Welcome to th' Forum!!
Title: Re: How fast can your ZX50 go after upgrades?
Post by: zx50boy on January 12, 2012, 06:42:12 AM
After all my mods i get 80-85 mph in powerband and can cruise at a good65-70mph out of power band alldayyy
Title: Re: How fast can your ZX50 go after upgrades?
Post by: sidthesloth on January 12, 2012, 08:29:09 AM
Bullsh**!!
Title: Re: How fast can your ZX50 go after upgrades?
Post by: zx50boy on January 12, 2012, 07:28:00 PM
If you say so buddy.
Title: Re: How fast can your ZX50 go after upgrades?
Post by: DeadRinger on January 12, 2012, 09:22:03 PM
zx50boy do you have like a 250cc mod on that thing? that seems fast maybe you meant to say speed in km?
Title: Re: How fast can your ZX50 go after upgrades?
Post by: zx50boy on January 13, 2012, 12:03:28 AM
50mm bbk 44mm stroker crank andd much much more
Title: Re: How fast can your ZX50 go after upgrades?
Post by: thebatman on January 13, 2012, 11:45:27 PM
Bullsh**!!

I TOTALLY AGREE>>>.. STRAIGHT BULLsh**.... IT'S NOT POSSIBLE ON A ZX, Not with that engine A 250 swap yeah, the sc-10 cases? bullsh**.. ALLLLL DAYYYYYYY
Title: Re: How fast can your ZX50 go after upgrades?
Post by: gambler on February 20, 2012, 01:02:55 AM
zx with biggest stroke and bore without modding cases, carb , pipe , dynotuned with 98ron fuel and motul m800 premix, polini variator, light weight clutch , red spring in final drive , gets 100-110kmh with a 113kg rider .... reckon it would get another 10 with someone say 65kgs gets aweful warm at those speeds though , be nice to do a watercooled mod ...
Title: Re: How fast can your ZX50 go after upgrades?
Post by: zombie on February 20, 2012, 02:04:00 AM
be nice to do a watercooled mod ...

For all the effort I would rather an S9
Title: Re: How fast can your ZX50 go after upgrades?
Post by: oldschoolsanta on March 06, 2012, 07:49:31 AM
Can some one explain to me which wire do you cut from the CDI and how.If some one uploads a picture of a CDI done like thiss i would be very grateful. Smiley
Title: Re: How fast can your ZX50 go after upgrades?
Post by: zombie on March 07, 2012, 05:50:43 AM
The DARK green wire gets spliced into the light green. Cut the dark at the cdi, and splice it to the light...
Poltergeist "You said don't go into the light!" (http://www.youtube.com/watch?v=YdqU-gxoZyc#noexternalembed)
The Mis Fits are waiting for you...
Title: Re: How fast can your ZX50 go after upgrades?
Post by: zombie on March 07, 2012, 05:53:05 AM
GIT UM BOYS!
Title: Re: How fast can your ZX50 go after upgrades?
Post by: thebatman on March 07, 2012, 05:56:52 AM
Step AWAY fom the light....... :D
Title: Re: How fast can your ZX50 go after upgrades?
Post by: zombie on March 07, 2012, 06:00:58 AM
NO Go into the lite...
Title: Re: How fast can your ZX50 go after upgrades?
Post by: beastly808 on March 21, 2012, 07:39:15 PM
Hello from Hawaii. I'm a newbie here, got a  2003
Zx50 that goes 69-74 gps recorded. Mods for my zx are 72cc polini contessa ported, ruima 44mm crank, ported block, kelli pulley with stock 8.5 an6 rollers, kelli heavyo clutch with 2000 springs and,1500 center spring, oko 28mm carb with 135 mj n 38pj, malossi primary gears, pg long exhaust pipe, and stock cdi. So with all this, motor comes out to 77cc. Sorry no pics.
Wanna thank you guys for the motivation on keepin my  zx rather than selling it.





Title: Re: How fast can your ZX50 go after upgrades?
Post by: wordslinger on March 21, 2012, 11:26:20 PM
..welcome to th forum beastly!..

..sounds like you got y'self a good setup!

 ;)
Title: Re: How fast can your ZX50 go after upgrades?
Post by: beastly808 on March 22, 2012, 02:49:17 AM
.Thanks wordslinger.

I'll post up pics soon.
Down here in the 808 its mostly og elite n dd50.
Title: Re: How fast can your ZX50 go after upgrades?
Post by: zombie on March 24, 2012, 12:34:07 AM
Welcome aboard Beastly. There are a few bad ass zx's around the forum. Always good to have another one
Title: Re: How fast can your ZX50 go after upgrades?
Post by: zombie on March 24, 2012, 12:35:35 AM
I forgot to ask. What is your final drive ratio? I am trying to get lower than 8.3:1. Tooooo many rpm for long 70mph runs
Title: Re: How fast can your ZX50 go after upgrades?
Post by: beastly808 on March 24, 2012, 02:35:04 AM
how you doing zombie.
well my gears are from malossi usa, they are primary gears 16x32 which will be 6.9 to 1 ratio, they are also straight cut.
my final gears are stock just changed the primaries.
with this your rpms should stay at a minimum with alot more power yet to be used. trust me, with the right tuning, this should put you well above 70mph in no time. i've reach 69mph gps recorded in only 1/4 to a little pass 1/2 throttle.
the draw back to this is that you will lose low end. thats  why i use staggered roller weights 6 and stock 8.5 for my size.
from what i've learned here( you might know already) tuning is not made only for the motor but also the rider who uses it.
find the roller weight set up for you and your zx will surprise you.
hope this helps you and everyone else out.
 Sorry i forgot the gears are made for kymco djy, it will fit perfect on a zx50.
Title: Re: How fast can your ZX50 go after upgrades?
Post by: beastly808 on March 24, 2012, 02:55:49 AM
oh i forgot, the guy who said that his zx goes 70 cruise then to powerband of 80-85, its not possible without out your frame flexin.
that must be a drag bike, cuz where i from not even a full stroked 82cc to 125cc elite's, dd50's, and sym (dio's) reach that, yet alone be for daily use.
not to say anything bad, but please its pass your bedtime WAKE UP!lol
Title: Re: How fast can your ZX50 go after upgrades?
Post by: thebatman on March 25, 2012, 02:07:55 AM
Sorry i forgot the gears are made for kymco djy, it will fit perfect on a zx50.


I learned something new right there/.....
Title: Re: How fast can your ZX50 go after upgrades?
Post by: Shaka on March 25, 2012, 02:11:24 AM
I was told that they don't fit...news to me also. ::)
Title: Re: How fast can your ZX50 go after upgrades?
Post by: thebatman on March 25, 2012, 02:14:58 AM
Yeah, it's been my experiance.. Gears are a bitch to get for the z..(malossiusa has a primary, or did. Our gears are history these days.)
Title: Re: How fast can your ZX50 go after upgrades?
Post by: Shaka on March 25, 2012, 02:17:26 AM
The primaries I've seen from Malossi are for the DJY...I was told they didn't fit the ZX.
Can't speak from experience on that one though.  I went with the same Motorio secondaries you have.
Title: Re: How fast can your ZX50 go after upgrades?
Post by: thebatman on March 25, 2012, 02:29:41 AM
I had seen a SWEEET price on some but of course it turned out to be for another kymco.(think it was the S9  ??? :-[)
Would be nice for both sets though... ;)  :D
Title: Re: How fast can your ZX50 go after upgrades?
Post by: zombie on March 25, 2012, 02:35:04 AM
oh i forgot, the guy who said that his zx goes 70 cruise then to powerband of 80-85, its not possible without out your frame flexin.
that must be a drag bike, cuz where i from not even a full stroked 82cc to 125cc elite's, dd50's, and sym (dio's) reach that, yet alone be for daily use.
not to say anything bad, but please its pass your bedtime WAKE UP!lol
I've often thought about that poster, and the responses he got. It is MOST likely he was NOT bull sh**ting, and has a drag set up. You SURE can't ride that on the street or there would be pieces EVERYWHERE!
I called Steve (MHR) about the gears, and he THINKS there may be one set left from the ZX modding days. I won't find out till Monday, as the warehouse was closed today.
There is a difference in the Dio gears, and the ZX gears but the DJY I do not know. I will take you at your word, and order a set if Steve cannot find his set. I am hoping for a 5.7:1 final. That should tame the cvt torture. 1/2 throttle is all I can really use. Once the pipe hits it is all down twisting, even with 9gr rollers. I don't care about the bottom end as most of my "commute" is on Hwy 98. Around town I do a steady 45-50, and no one notices.
Thanks for the help Bro!
Title: Re: How fast can your ZX50 go after upgrades?
Post by: thebatman on March 25, 2012, 03:00:47 AM
IDK bout that...
That's fkn fast on the SAME KIT,same set up we have... did he even have any gears at all?
Title: Re: How fast can your ZX50 go after upgrades?
Post by: thebatman on March 25, 2012, 03:03:08 AM
PLUS...
NEVER any rebutal, comments, NOTHING... Just POOOF... "out like trout"
Title: Re: How fast can your ZX50 go after upgrades?
Post by: zombie on March 25, 2012, 03:05:24 AM
Maybe he said F' these no nuthin's. Just saying... It can be done.
Title: Re: How fast can your ZX50 go after upgrades?
Post by: thebatman on March 25, 2012, 03:07:38 AM
If he's "cruising" at those speeds, that's not a drag bike, that's street
Title: Re: How fast can your ZX50 go after upgrades?
Post by: zombie on March 25, 2012, 03:17:06 AM
Oh Yeah! I didn't think draggers were into cruising... He was a F'in LIAR!!!
F' it. I'm Tired anyway
Title: Re: How fast can your ZX50 go after upgrades?
Post by: thebatman on March 25, 2012, 03:28:13 AM
   ;) ;D
Title: Re: How fast can your ZX50 go after upgrades?
Post by: beastly808 on March 25, 2012, 06:21:38 AM
Was up guys? Trust me the malossi primary gears for the kymco djy will fit perfect. I did have my doubts about it but it work perfect.
With all the set up you all have, with these gears your goals will be reached and then some.
Title: Re: How fast can your ZX50 go after upgrades?
Post by: Shaka on March 25, 2012, 06:23:54 AM
Great to get confirmation!
Do you happen to have the part # from the gears you have?
Title: Re: How fast can your ZX50 go after upgrades?
Post by: beastly808 on March 25, 2012, 10:37:36 AM
Here is the part # for the gears on malossi usa, #676458. They cost about 95 dollars.
They are made for kymco djy,djx,and cx.
Hope this help you all out.
This should be run with the stock secondary  gears.
Title: Re: How fast can your ZX50 go after upgrades?
Post by: zombie on March 26, 2012, 01:50:11 AM
Thanks for the Number. I have an unknown set of secondaries installed, and have no OEM gears. I will order the primaries tomorrow from SPI, and give it a shot. (this is if MHR dosen't have the set I wanted) I just realized I do have an OEM set in the engine I built for the Malossi. Either way I will post up results for you guys.
Title: Re: How fast can your ZX50 go after upgrades?
Post by: Shaka on March 26, 2012, 01:52:09 AM
Sweet! 8)
Title: Re: How fast can your ZX50 go after upgrades?
Post by: zombie on March 26, 2012, 02:07:11 AM
Still Moding it Shaka?
Title: Re: How fast can your ZX50 go after upgrades?
Post by: Shaka on March 26, 2012, 03:34:59 AM
No...I'm done messing with it after the last FULL rebuild!  Nice to know compatible parts for the next go-round though. ;)
Title: Re: How fast can your ZX50 go after upgrades?
Post by: zombie on March 26, 2012, 06:29:32 AM
 the next go-round

There's ALWAYS that one...
That's why I have to sell it. I hate when it's not perfect.