How often do you change jetting?
 

Just wondering how often you guys change jetting for temps and such?
I ride same few areas around my house. 1000' up to 7000' elevations. And from damp, 5*c days to 32*c I know I am fat jetted, she runs good, and I mostly am single track/ old overgrown horse logging roads in the BC Rocky Mountians. I haven't changed my jetting, and know previous owner never changed for seasons or temps. SHe is a 98 ec250 with PWK 38. My idle sure does change with elevation and engine temp tho. And the idle stop screw is all the way in. I have to take carb out and record the needles one day.
It's a 1998 EC250

But surely you guys are not taking carb out every day you ride to change?

Ps. My present setting. Not sure if I should change anything?


Idle stop almost bottomed
Pilot 35
Mix screw 1.5 turns
Main 178
Needle N1EC
Clip 3


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[QUOTE=Banditpowdercoat;191691]Ps. My present setting. Not sure if I should change anything?

What bike and what year is that?

All the best, Dave.

It's possible that you have an internal gasket failure in the carb.

You should not have to change your jetting that much.

[QUOTE=Davehuge;191692]
Sorry, forgot that. It's a 1998 EC250..

It runs great, no issues other than it smokes a lot (50:1 Interceptor) and plug always rich black.

That n1ec is your smoking and rich black plug issue.

WHat should I look for to put in?

Depending on which 38mm keihin you have fitted it varies. If it is the old round screw cap style I liked the n3eg with a 42/45 and a 178/180 main.
If it is the later two screw cap I?d run the nedw with 42 and a 178. You might need a size either way for your altitude, but once you have it set nice you?ll rarely have to do much other than a tweak of the air screw.

Cool thx, It's the older round screw AS1 carb I'll have to google the n3eg for a source.