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Messages - shroomigator

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zx50 / Re: My ZX50 barely gets to 30
« on: January 14, 2014, 01:30:47 PM »
Are carb jets a standard thing or are they unique to each carburator? I mean, can I just go buy a jet kit with a bunch of different sizes and try em out, or do I need something made special for my carb?  And how do I find out the make/model of my carb if it's a stock kymco carb?

2
Technical | How To / Re: Help! Instaleld 75cc upgrade, now bike will only start if i hold throttle
« on: January 13, 2014, 01:54:00 PM »
Damn... I just paid them $40 plus shipping for that kit... it's supposed to come with (and this is copied directly from their website): "   
Quote
Main Jets
    Pilot Jets (if required, not all kits will require the pilots)
    Needle Adjusters
    Nylon Spacers
    Drill Bits for:
    Slide Hole Modification (for CV carbs)
    Slide Spring Modification (for CV carbs)
    Idle Mixture Modification
    Intake Modification (Hi-Flow)
    Exhaust Modification (Hi-Flow)
    Vehicle Specifications
    Carburetor Schematics
    Carb Synchronizer Tool (how to build one for $5) Instructions. Saves you more than the cost of the Jet Kit.
    Step by step instructions customized to your vehicle's Carburetor.
    Carburetor Cleaning Guide
    Vehicle Tuning Guide
    Installation Support - If you need assistance with installation or have a question we are there for you.

Doesn't look like you got any of that...

3
Technical | How To / Re: Help! Instaleld 75cc upgrade, now bike will only start if i hold throttle
« on: January 12, 2014, 02:20:33 PM »
Quote from: thesurgeonistherobot on January 10, 2014, 10:42:41 PM
Is the auto-choke installed on the carb and connected?

What kind of idle mixture screw is on your carb? Is it a pilot air screw or is it a pilot fuel screw? Usually an air screw is mounted close to the intake side of the carb and a fuel screw is mounted close to the engine side of the carb.
Carb has two screws, one for air and one for fuel, the air screw is just above and offset from the fuel screw...

Fiddled with em both, tried both wide open and both closed, and several steps in between, this seems to have no effect.

The auto choke is clean and moves smoothly, as does the carb float, the entire carb is just clean as a whistle and everything seems to be doing what it's supposed to...

I have to agree with the notion that the carb just isn't supplying enough fuel to the upgraded cylinder... I ordered a jet kit from 6sigma. hopefully that will solve the problem without having to replace the carb.

Anyone here have experience with 6 sigma?

4
zx50 / Re: My ZX50 barely gets to 30
« on: January 10, 2014, 05:11:18 AM »
would you happen to know which jets I should buy with a stock carb?  do I need a bigger carb than the stock?

5
Technical | How To / Re: Help! Instaleld 75cc upgrade, now bike will only start if i hold throttle
« on: January 10, 2014, 03:41:49 AM »
Always idled smoothly and always started right up.... then one day I gave my coworker a ride to work and i'm pretty sure that's when I blew the headgasket, because it went from a top speed of 43mph to around 30.  I asked around on these boards, was told to replace the roller weights (i did) and clean the carb (likewise done) performance dropped steadily until finally she wouldn't go faster than 15, at which point I took the head off and found the busted gasket... tried to use a silicone gasket, but couldn't get any compression (still started right up and idled smoothly).  Bought the upgrade kit and during the install became aware that I had been riding the thing with no bottom cylinder gasket all along (which would explain why the silicone gasket  on the head didn't fix the problem)...
so now, upgrade kit is installed, but no start unless I hold the throttle.

6
Technical | How To / Re: Help! Instaleld 75cc upgrade, now bike will only start if i hold throttle
« on: January 09, 2014, 09:01:25 PM »
Quote from: thesurgeonistherobot on January 09, 2014, 08:48:25 PM
Did your ZX50 run well before you put the 75 cc kit in?
no, I was having a lot of problems with not getting enough power.  cleaned the carb, and found a blown head gasket... when i took the cylinder off to put the kit in, I found that the bottom gasket was completely missing.

I did take the carb apart, and didn't put fuel in the bowl... how do I do that?

7
Technical | How To / Help! Instaleld 75cc upgrade, now bike will only start if i hold throttle
« on: January 09, 2014, 08:25:27 PM »
Put a ruima 75cc upgrade kit in my zx50.  Now the bike will only start if i hold the throttle at max, and if i release the throttle it stalls.  Played with the screws on the carb, does nada.  What do I do?

8
zx50 / Re: My ZX50 barely gets to 30
« on: January 09, 2014, 08:20:54 PM »
another update:cleaned the carb thoroughly... wasn't blocked at all... now it's squeaky clean... but I did find the problem... cylinder head gasket was busted, oil leaking out the front.

so...

I ordered new gasket from my local dealer, but in the meantime I tried making a silicone gasket... it worked, but I still wasn't getting any compression, and my bike wouldn't do more than 5 mph...

got tired of waiting for the damn gasket to arrive, so I ordered an upgrade kit (been wanting to do this anyway)... got the ruima 75 cc kit from provoscooters, it arrived in two days (still waiting for the gasket from my local dealer...

so, I take everything apart, and I find that there is no bottom gasket on the cylinder!

beats me how the thing ran at all, but now I knew why the silicone gasket didn't have any effect...

so, upgrade kit comess with gaskets, I put it all together, and...

bike won't start at first, then i hold gas at full throttle, and it will idle...

what now?

9
zx50 / Re: My ZX50 barely gets to 30
« on: December 20, 2013, 10:42:17 AM »
ok, so here's the update:
Took a few weeks for parts to arrive.  I got a new boss from scooter assasins, and roller weights from my local dealer.  Put both in (the old roller weights were worn down about 1mm)

the result: no change...

at this point i'm thinking that the problem may be clogged carb jets...

thoughts?

10
zx50 / Re: thinking of selling my scoot
« on: December 02, 2013, 12:34:01 AM »
I paid $350 for a 2005 with 16000 km on it

11
zx50 / Re: My ZX50 barely gets to 30
« on: November 27, 2013, 02:22:29 AM »
Quote from: naughty lee on November 26, 2013, 03:21:52 PM
Take your front variator apart and check the rollers for wear flats

Yes, there are flat spots on a few of the roller weights... I'll be replacing those, hopefully tomorrow if I can get some from my local dealer, and hopefully that will be the end of it.

Thanks for the response.  I'll post an update once the roller weights are replaced.

12
zx50 / My ZX50 barely gets to 30
« on: November 25, 2013, 02:47:19 PM »
Hi all,

Newbie to bikes in general... got a 2005 zx50 with 16000 KM on it about 2 months ago... when I first got it, it would give me 43 mph and it was great...

then one day, I had to go about 10 miles away for an employee training session... another girl from my job was there, and her ride didn't show up... i jokingly offered to let her ride on the back of the scooter, and well, open mouth insert foot, she took me up on it...

i weigh 230, she was about 150...

So after this epic ride, maybe a day later, i hit a bump and suddenly it won't go more than 10 MPH... I got to work, worked my shift, and afterward the bike was normal again, like it fixed itself...

So this happens every time I hit a bump for a few days, til I do some research and get the idea that my CDI is going bonkers...

Took the panels off the bike, found the CDI checked all the connections, found nothing obviously wrong, and put it back together.

The problem where it slowed down after hitting a bump was gone, but now the bike won't go above 25mph until I've been riding about 10 or 15 minutes, and after that I can get 30, but no more...

Not sure what to do at this point.

Sorry for the long post.  Any advice would be greatly appreciated.

13
Technical | How To / CDI issues on a 2005 zx50 Super Fever
« on: November 17, 2013, 12:39:07 AM »
I have a 2005 ZX 50 Super fever and it's been giving me problems getting to top speed, especially on rainy days.  After much searching I determined that my CDI is screwy and I want to replace it with an unrestricted one.  Problem is, I can't tell if I need a DC or an AC unit.

Also, I read about how to splice the two green wires to make the unit unrestricted, but I'm not sure if it will solve my problems, or will it still act screwy.


Definition of acting screwy: Sometimes when I hit a bump, top speed drops to 20 and won't correct until the unit is shut down and sits awhile.  When I hold throttle all the way, top speed is 25 or so.  I can get up to 30, and sometimes 35, by holding the throttle at half, but it takes a mile or more to get up to that speed.

I'm looking to order an unrestricted unit, but not sure if my unit is ac or dc. Part# id KCX J100 

14
zx50 / CDI issues on 2005 zx50 Super fever
« on: November 16, 2013, 11:56:56 PM »
Hi, first post :)

I have a 2005 ZX 50 Super fever and it's been giving me problems getting to top speed, especially on rainy days.  After much searching I determined that my CDI is screwy and I want to replace it with an unrestricted one.  Problem is, I can't tell if I need a DC or an AC unit.

Also, I read about how to splice the two green wires to make the unit unrestricted, but I'm not sure if it will solve my problems, or will it still act screwy.


Definition of acting screwy: Sometimes when I hit a bump, top speed drops to 20 and won't correct until the unit is shut down and sits awhile.  When I hold throttle all the way, top speed is 25 or so.  I can get up to 30, and sometimes 35, by holding the throttle at half, but it takes a mile or more to get up to that speed.

I'm looking to order an unrestricted unit, but not sure if my unit is ac or dc. Part# id KCX J100 

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