korider.com | Hyosung Motorcycle Owners Forum

korider.com | Hyosung Motorcycle Owners Forum

  • August 20, 2018, 04:07:41 PM
  • Welcome, Guest
Please login or register.

Login with username, password and session length
Advanced search


Welcome to Korider.com!

Pages: [1] 2 3 ... 10
 on: Today at 03:33:52 PM 
Started by theorist - Last post by albertinhouston
hook up jumper cables turn the motor over... pure a little gas down the carbs.
BE SURE YOUR MOTOR WILL TURN OVER before you invest any $$$.

fix one problem at a time.

clean tank. once you have it cleaned. clean it one more time. lol
clean carbs. this will most likely be the reason the bike doesn't work.
get an empty water bottle poke a hole in the top of the lid.  push a hose it there and feed it to the pump.
once you get the carbs cleaned well enough that it runs good. It's going to take several tries to get that carb cleaned all the way.
then introduce the tank into the mix.
If you don't do it this way you will not know which is the causing you the problems.

If the motor runs good with the bottle of gas and bad with the tank then the tank is still dirty. (you will probably  need to clean the carbs again.
it's a painful process....

then you can start fixing other issues(tune up the bike)

 on: Today at 03:11:04 PM 
Started by theorist - Last post by albertinhouston
I was  doing this same thing with fuel set ups when I first started buying hyosungs to resale.
If you wish to do it this way it'll work. Just make sure the copper tube come with a filter for it.
To be honest with you....
 if you messing with petcock your bike is at least 10 years old. you are dealing with a part(bike) that was neglected not because the parts suck.
 Just buy a new petcock and you'll be good.  I bought about 20 of them and got them for about $7 each.( ebay does negotiate hahaha)
I think normal price was $25.

I would still ad the inline filter though.

 on: Today at 02:38:45 PM 
Started by theorist - Last post by umop-ǝpisdn
I like the way you're going with this.

Nothing to add. You're on the right track there.

 on: Today at 02:36:43 PM 
Started by theorist - Last post by umop-ǝpisdn
This thread might help:


Likely the rubber parts will have perished. That not only includes the ones you can see, but also the ones you can't, i.e the diaphragms in the petcock and fuel pump.

Check the inlet manifolds, as they are also rubber.

Fuel + Air + Spark. It sounds easy, but in truth there's so many places it can go wrong.

What's the oil look and smell like? Any fuel smell?

Its hard to say what you will NEED. You need to have a good look around to assess that. Any rust in the tank? Filter changes will be a must. ALL of them.

I wonder why it stopped being used in the 1st place? Did it break down?

 on: Today at 01:10:07 PM 
Started by theorist - Last post by theorist
My whole fuel system is a mess due to bad gas being left in it for years.

I'd like to install a good inline fuel filter (or two) like the Wix 33001 and 6mm clear fuel lines.  Rather than replace the vacuum fuel valve or vacuum petcock (on the bottom of the tank) and the vacuum fuel pump which that leads to before the carbs, I'm considering alternative aftermarket parts.

I'm thinking of replacing my failed vacuum fuel valve with a simple manual petcock to replace the vacuum fuel valve.  Perhaps something like https://www.amazon.com/gp/product/B00WPSFAFU or https://www.amazon.com/FLYPIG-Petcock-Kawasaki-Motorcycle-1986-2016/dp/B01N20SC0G

I'm thinking of replacing the ineffective vacuum fuel pump with an electric pump like https://www.amazon.com/MegaFlint-Universal-Pressure-Electric-HEP-02A/dp/B072M7P34C/ or https://www.amazon.com/CarBole-Universal-Electric-electric-Shut-off/dp/B017NOJIVM or a different vacuum driven fuel pump like https://www.amazon.com/gp/product/B00WPSFAFU or https://www.amazon.com/Vacuum-Fuel-Pump-Kawasaki-49040-2067/dp/B016WCPB7Q

Does anyone have experience using these or other alternatives to failed Hyosung fuel petcocks and pumps for carbureted bikes?

 on: Today at 12:57:33 PM 
Started by spit051261 - Last post by AJC650
One I have mentioned before is Turtle Wax Ice synthetic polish - it can be used on paint, chrome, plastic and even glass, and protects everything without any of the usual white residue.  I particularly like that it cleans and protects black plastic parts really well.

You put the polish on a sponge applicator and just wipe it over everything (except seat, grips and brakes of course!) then polish off.

 on: Today at 11:37:39 AM 
Started by theorist - Last post by theorist
I just got a 2007 GT250 with 11,000 km or 7,000 miles that has been sitting for years.  It won't start.  The fuel is awfully bad.  I know I need to empty and clean the tank and carbs.  I'll also be changing the plugs, oil and filter, lubing and adjusting the chain, replacing the fuel, vacuum, and brake lines.  I may also switch from incandescent to brighter LED bulbs, replace the old and hard tires for something fresh, soft, and grippy, desnorkel the air-filter, and consider rejetting the carbs.

What else do you think I NEED to do, to get it running?

Do you have any advice on the items above? 

Are their any good videos or documentation of cleaning or rebuilding the mikuni dual carbs?  I'm not new to auto repair but I am new to working on carbs.

 on: Today at 11:00:26 AM 
Started by spit051261 - Last post by spit051261
Anyway , I am bored and due to fly back to the shit hole tomorrow so no more lengthy posts from me for a couple of weeks so thought I would give my thoughts on my latest endeavors .
My first tip (which I saw on YouTube) was cleaning up your carbon fiber can with WD40 or CRC . It worked a treat with one of the Mrs. scouring pads and definitely recommended to bring the sparkle back to your exhaust .Autosol is also amazing at getting the chrome parts looking good .
Second tip , CRC  Liquid Armour for cleaning and bringing a shine to fairings and anything really . It smells lovely too  (in a non feminine way)  :o.
I am also putting a pic up of my De Badged bike which I think looks amazing and goes well to boot  8).
Lets have your tips .

 on: Today at 10:28:23 AM 
Started by spit051261 - Last post by AJC650
Ignoring my mod era Lambretta (fond memories!), my first motorbike was a used but decent condition Royal Enfield 250 single.

Memories?  Agricultural feel, oil leaks, and frequent running of the big ends.  Found out years later that it was possible to put the oil pump in backwards and draw oil away from the bearings... I wonder if that is what was wrong!!

Modern bikes are much better!!

 on: Today at 07:44:20 AM 
Started by TheEhTeam - Last post by spit051261
worthwhile giving it a check over . Make sure there is nothing nasty that shouldn't be there eh  :)

Pages: [1] 2 3 ... 10