korider.com | Hyosung Motorcycle Owners Forum

korider.com | Hyosung Motorcycle Owners Forum

  • April 29, 2017, 04:46:12 AM
  • Welcome, Guest
Please login or register.

Login with username, password and session length
Advanced search

News:

Welcome to Korider.com!

Pages: 1 [2] 3 4 ... 12

Author Topic: Removing the flat spot - CDI Wire cut walkthrough with photos  (Read 43480 times)

Caligonetx

  • FGE Riding; MSRH, TWS, GSS, HMP, HRP
  • Goodbye chickenstrips!
  • ****
  • Offline Offline
  • Posts: 331
  • ForestGnome TourGuide
    • MotoHouston
Re: Removing the flat spot - CDI Wire cut walkthrough with photos
« Reply #10 on: July 06, 2010, 01:52:40 PM »

Im not experiencing any problems so Im not going to mod it; especially if Im not 100% certain what Im doing.

If your flat spot appeared, remember these vehicles do not adjust for mixture changes, fuel etc. Its a simple processing unit; basically a relay set up.  Its only going to respond to the matrix it sees.  Make sure its not just an enviromental change causing the feel in the bike(change in temp or humidity) then check the gas. Run some seafoam through the gas to clean up the carbs especially if you have to deal w gas w ethanol.

Mids sticking can cause problems while accelerating. I feel mine every so often and I know its from the gas; once I let the gas through it clears up for the rest of the ride/day/etc.
Logged

Register and log in and the Ads below will be gone! :D

BikeBandit.com

CamronB

  • 2013 GT650R
  • Goodbye chickenstrips!
  • ****
  • Offline Offline
  • Posts: 166
Re: Removing the flat spot - CDI Wire cut walkthrough with photos
« Reply #11 on: July 07, 2010, 06:44:58 PM »

Well I did mine yesterday because I thought if it did nothing then I would just solder the wires back together but I have to say the revs are much smoother and when running at speed 5500-6500 rpm if I need to go it just seems to go quicker than before could just be me but it sure feels like it. My bike is completely stock and I could tell a difference. Here is a pic of my wires (2008 GT250r US) looks just the same as tommot6's from AU.
Logged
BMC Filter
Two Brothers Titanium
FH020AA upgrade


silentjatt

  • Grinding the pipes
  • *****
  • Offline Offline
  • Posts: 1083
Re: Removing the flat spot - CDI Wire cut walkthrough with photos
« Reply #12 on: July 07, 2010, 08:26:57 PM »

mine has a bit of hesitation from 6k to 7k. i found a solution to this long time ago. keep the rpms above 7k!
Logged
08 GT250R FI---- dead! :(
life moves on to 'better' bikes..

generalkiva

  • Regular rider
  • ***
  • Offline Offline
  • Posts: 96
  • Hyosung ride to the max! :)
Re: Removing the flat spot - CDI Wire cut walkthrough with photos
« Reply #13 on: July 08, 2010, 05:09:00 PM »

OMG!!! bro tommot6! i try exactly like u posted...and it really works!! currently im using a Hyosung GT250R 2008 (Malaysia) , previously i feel the flatspot and underpower during gear 1-3 ...now with the CDI modification, the flatspot is gone! i got more power to the bike!

Also it reduce the popping sound when deceleration....

Really appreciate it! save my money on changing new CDI according to the local mechanic! :D

Thanks! :)
« Last Edit: July 09, 2010, 05:03:12 AM by generalkiva »
Logged

neostorm3000

  • Regular rider
  • ***
  • Offline Offline
  • Posts: 83
Re: Removing the flat spot - CDI Wire cut walkthrough with photos
« Reply #14 on: July 08, 2010, 05:11:31 PM »

I am hesitant to do this cause I know nothing about electronics but I am sue I'll get bored one day and snap this wire in half  ;D ;D ;D
Logged

CamronB

  • 2013 GT650R
  • Goodbye chickenstrips!
  • ****
  • Offline Offline
  • Posts: 166
Re: Removing the flat spot - CDI Wire cut walkthrough with photos
« Reply #15 on: July 08, 2010, 05:25:49 PM »

I am hesitant to do this cause I know nothing about electronics but I am sue I'll get bored one day and snap this wire in half  ;D ;D ;D

Just remember it can be easily reversed with a soldering gun   ;)
Logged
BMC Filter
Two Brothers Titanium
FH020AA upgrade


Lowerd

  • Training Wheels
  • *
  • Offline Offline
  • Posts: 10
Re: Removing the flat spot - CDI Wire cut walkthrough with photos
« Reply #16 on: July 08, 2010, 05:44:10 PM »

I have a 2007 version, between 6 - 8000rpm @ WOT it has a huge flatspot. will cutting the CDI wires help with this or is it more a fuel jet/needle issue?  cheers for any help.
Logged

generalkiva

  • Regular rider
  • ***
  • Offline Offline
  • Posts: 96
  • Hyosung ride to the max! :)
Re: Removing the flat spot - CDI Wire cut walkthrough with photos
« Reply #17 on: July 09, 2010, 03:50:26 AM »



cut the 2 wire , green and blue...and secure with tape


My question now...does this effect the spark plug? means that will it go easily turn black?

Please help advise...
Logged

Lowerd

  • Training Wheels
  • *
  • Offline Offline
  • Posts: 10
Re: Removing the flat spot - CDI Wire cut walkthrough with photos
« Reply #18 on: July 09, 2010, 04:41:08 AM »

Well i cut the Green/blue striped wire this afternoon and wow what a difference, it feels like it has a load more mid range and less popping on deceleration   :)   also my choke now seems to function. never worked before?

Cheers for the tip guys.
Logged

toofat

  • кто "Днепр" водил - на сервис "ложит" :)
  • Goodbye chickenstrips!
  • ****
  • Offline Offline
  • Posts: 241
Re: Removing the flat spot - CDI Wire cut walkthrough with photos
« Reply #19 on: July 09, 2010, 07:08:48 AM »

My question now...does this effect the spark plug? means that will it go easily turn black?
Please help advise...

Hi! Why it should turn black if the mixture will burn more efficiently in the midrange? There will be no spark pauses and thats all.
I've this wire cut and id didn't affect the plugs.
Logged

Pages: 1 [2] 3 4 ... 12