difficulty with jetting a 220
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difficulty with jetting a 220
i'm trying to jet properly my KDX because at low rpm, it don't have a good sound and have no power. I'm currently 42, r1173L, second clip from the top, main 145 at 750 ft and around 75 degree.
Can anyone help me, the when i try the jetting guide, i start with the airscrew and the rpm never go up. My idle screw is all the way in and my bike have a very slow idle.
i'm desperate
Can anyone help me, the when i try the jetting guide, i start with the airscrew and the rpm never go up. My idle screw is all the way in and my bike have a very slow idle.
i'm desperate
- Colorado Mike
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It sounds to me like the pilot circuit has a problem. The idle screw should work. Take the carb off and look in the throat and make sure it's really moving the slide. if not, maybe it's the wrong screw. Float level should be set and carb squaeky clean before messing with the jets.
Mike
Life's tough, it's even tougher if you're stupid.
'04 KDX220
Life's tough, it's even tougher if you're stupid.
'04 KDX220
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the carb is clean, the idle screw work a little but it is fully screw in. to set the pilot circuit i have to screw in the idle screw to make the idle fastest. but it is already screw in. When i unscrew it, after one turn the bike stop.
I will tcheck if the screw is good. i tcheck my float level and it is to 16mm, so no problem for this.
remember that my airscrew do anything, even if i do 4 turn out, but when i turn fully in the bike stop
I will tcheck if the screw is good. i tcheck my float level and it is to 16mm, so no problem for this.
remember that my airscrew do anything, even if i do 4 turn out, but when i turn fully in the bike stop
KDX 220 2001 =)
Don'T drink and drive...just give some gas and fly :D
Don'T drink and drive...just give some gas and fly :D
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- Posts: 116
- Joined: 06:32 pm Mar 31 2009
- Country:
- Location: québec. canada
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- Member
- Posts: 116
- Joined: 06:32 pm Mar 31 2009
- Country:
- Location: québec. canada
So i check the KIPS and all is working
i forget to tell you that I foul plug.
When i ride in trail at low rpm the plug comes very spoogy,and after a long times in trail the bike start to miss fire and after this...it is the dead of the plug. but i do a plug chop test on a long way at full trottle and check the plug and it was dry and dark brown
i forget to tell you that I foul plug.
When i ride in trail at low rpm the plug comes very spoogy,and after a long times in trail the bike start to miss fire and after this...it is the dead of the plug. but i do a plug chop test on a long way at full trottle and check the plug and it was dry and dark brown
- fuzzy
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Could try going leaner on the pilot yet. like trying a 38? Can't blow your motor with small changes in the pilot like this. You'll know when it's too lean...when you wack the gas under load it will cut out, then pick up. Also, adjust the air screw! OUT is LEAN. out to two turns or so before changing pilot to next leaner size, then always start at 1turn out when testing new pilot and adjust from there.When i ride in trail at low rpm the plug comes very spoogy
Could be ignition related too (weak). Does it break up in the high rpm at all?
Carb could be wearing out.
Also, test for air leaks around the carb/boot with carb cleaner while the engine is running....it will run different if it sucks some in. This generally results in high, pulsey idle though...
'91 KDX 200 Project $300 KDX
'95 KDX 200 Project $600 KDX
'94 WR 250 Always a project
'95 KDX 200 Project $600 KDX
'94 WR 250 Always a project