Author Topic: Lack of Power near top end  (Read 1838 times)

aas5f6

  • Jr. Member
  • **
  • Posts: 71
  • Karma: 0
    • View Profile
Lack of Power near top end
« on: December 19, 2008, 12:38:23 PM »
I just got done rebuilding my FL250. Now my problem is when running, and i slowly bring the rpms up it stalls, then a few seconds later goes past the stall and takes off with full power. This is a problem because when trying to open it wide it stalls for a second then finally picks up. I thought it might have been running a little lean but moving the needle clip down one didnt help at all. Runs and idles great besides this problem. Any Ideas.

PilotHawK

  • Hero Member
  • *****
  • Posts: 616
  • Karma: 0
    • View Profile
Lack of Power near top end
« Reply #1 on: December 19, 2008, 05:51:55 PM »
A few more details please. What carb, what jets, what position is the clip on the needle? any mods?, what is your elevation? Are your clutches performing properly?

aas5f6

  • Jr. Member
  • **
  • Posts: 71
  • Karma: 0
    • View Profile
Details
« Reply #2 on: December 19, 2008, 11:56:17 PM »
Stock Carb with stock jets, need position 2nd from the bottom ( I know its running rich, it will be moved back to the middle position). Elevation is 500 ft above sea level. Clutches seem to be working just fine. I feel likes its a gas deliver problem, or maybe timing.

PilotHawK

  • Hero Member
  • *****
  • Posts: 616
  • Karma: 0
    • View Profile
Lack of Power near top end
« Reply #3 on: December 20, 2008, 09:00:39 AM »
Sounds more like a carb issue to me. Try reading through this jetting guide, and see if it makes any sense, and work from there.

http://www.yellowdogracing.com/techstuff.htm

aas5f6

  • Jr. Member
  • **
  • Posts: 71
  • Karma: 0
    • View Profile
Jetting
« Reply #4 on: December 23, 2008, 01:46:45 PM »
I agree with you. I think the main jet is too small. I am running a different pipe and also a uni air filter. So that makes sense. Where would you order jets from?

PilotHawK

  • Hero Member
  • *****
  • Posts: 616
  • Karma: 0
    • View Profile
Lack of Power near top end
« Reply #5 on: December 23, 2008, 02:23:04 PM »
you can order jets from dennis kirk, rocky mountain atv or about anywhere. I like to do my shopping through this guy. His prices are great, and he is supports our old machines with research and products.
http://www.pilotodysseyperformance.com/