help with carb problem?
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help with carb problem?
I have a quarter to half throttle bog. if I don't get off it will shut off. but half to full throttle is strong. At first I had a 48 pilot jet and the bog was bad. Went up to 52 and the only difference I could tell was when the air screw was an 8th out. but it still bogged. but not quite as bad. I am right in saying that it still needs to be richer? should I try a 60 pilot?
Also someone mentioned something about the stator timing. If the timing was too advanced or retarded would it have this problem of quarter to half throttle?
Also someone mentioned something about the stator timing. If the timing was too advanced or retarded would it have this problem of quarter to half throttle?
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Re: help with carb problem?
Well it seems obvious that I need a new pilot. But what size? It's confusing because I read most guys use 42-48 and I'm still too lean at 52. Should I do 60?bufftester wrote:Start Here
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Re: help with carb problem?
Which EXACT KDX is this????
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Re: help with carb problem?
1993 kdx 200Jason wrote:Which EXACT KDX is this????
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Re: help with carb problem?
Elevation?
Humidity?
Temperature?
Any bikes mods?
Are you running oxygenated racing fuel or something standard?
If the bike is mechanically sound, then it should be somewhere around 45 or 48, unless you have some super oddball setup or conditions.
Humidity?
Temperature?
Any bikes mods?
Are you running oxygenated racing fuel or something standard?
If the bike is mechanically sound, then it should be somewhere around 45 or 48, unless you have some super oddball setup or conditions.
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- bufftester
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Re: help with carb problem?
Thats the kicker. First thing is to make sure everything else is good, any air leaks, etc and you'll never get it jetted correctly. regardless of what is happening at quarter or half or full throttle it doesn't matter. Your pilot is determined by your airscrew setting. The key to jetting is to follow the process without skipping around or trying a bunch of things at once. One change at a time, following the process. I have literally seen hundreds of "need help jetting" threads over the years that end with "I finally followed the process and everything works now" type comments. Yes it takes time and patience, but it does work.Jason wrote:...If the bike is mechanically sound, then it should be somewhere around 45 or 48, unless you have some super oddball setup or conditions.
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Re: help with carb problem?
Sea level, normal humidity and temp. No mods. I just thought of something though. It smokes white really bad. I think somehow I'm getting gearbox oil in the combustion chamber and it's leaning the mixture. Maybe cranks ealing. My sprocket seal leaks bad but it wouldn't get in the cylinder. It just drains outJason wrote:Elevation?
Humidity?
Temperature?
Any bikes mods?
Are you running oxygenated racing fuel or something standard?
If the bike is mechanically sound, then it should be somewhere around 45 or 48, unless you have some super oddball setup or conditions.
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Re: help with carb problem?
bufftester wrote:...Thats the kicker. First thing is to make sure everything else is good...Jason wrote:...If the bike is mechanically sound...
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Re: help with carb problem?
Well I don't have time to split the case now so ima just put a 60 in it and keep polluting. As keep oil in it
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Re: help with carb problem?
Normal temp for Antarctica?
Where are you??
Jerry Maguire, help me help you.
If it was leaking transmission oil into the combustion area, it would be black. White equals coolant. Check your coolant level. Many threads on here about E series coolant pump seals.
Pilot should be around 45 for most locations and around 70 degrees
Where are you??
Jerry Maguire, help me help you.
If it was leaking transmission oil into the combustion area, it would be black. White equals coolant. Check your coolant level. Many threads on here about E series coolant pump seals.
Pilot should be around 45 for most locations and around 70 degrees
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Re: help with carb problem?
Coolant hasn't been dropping. My dad put regular Trans oil in it and not 10w30 like the manual says. Would it smoke white? Ima put 10w30 in it and see if the smoke changes colorJason wrote:Normal temp for Antarctica?
Where are you??
Jerry Maguire, help me help you.
If it was leaking transmission oil into the combustion area, it would be black. White equals coolant. Check your coolant level. Many threads on here about E series coolant pump seals.
Pilot should be around 45 for most locations and around 70 degrees
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Re: help with carb problem?
And since 10w30 is Thicker than the Trans oil in it right now would that make it leak slower?nate9521 wrote:Coolant hasn't been dropping. My dad put regular Trans oil in it and not 10w30 like the manual says. Would it smoke white? Ima put 10w30 in it and see if the smoke changes colorJason wrote:Normal temp for Antarctica?
Where are you??
Jerry Maguire, help me help you.
If it was leaking transmission oil into the combustion area, it would be black. White equals coolant. Check your coolant level. Many threads on here about E series coolant pump seals.
Pilot should be around 45 for most locations and around 70 degrees
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Re: help with carb problem?
Is the transmission oil level going down?
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- bufftester
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Re: help with carb problem?
What in "Follow the jetting guide" leads you to think you need to split the cases? You're just randomly trying things with no luck while folks with LOTS of years and experience on these bikes are telling you what you need to do, but you refuse to listen. Good luck with it....nate9521 wrote:Well I don't have time to split the case now so ima just put a 60 in it and keep polluting. As keep oil in it