125-200cc CR 125 09 jetting

What jetting are you CR 125 guys running ?
I believe mine is from memory 440 main 35 pilot 5 slide . Tried standard and RM needle .
Ive had two rides so far and initially thought I had old fuel - it wasn't the fuels fault .
Still running like crap . Spark plug looks good
Big bogs in deep sand - cant keep in in the power band.
When it does come on the power band very short and no over rev - compared to a Wr 125
( or my Cr 165 for that matter )
Tried the RM needle - but needs to be on top ( leanest ) slot to not break up at top - then bogs very badly when not at full revs
I believe I may need to get a 5 slide and lower needle as per Darttyppts set up

Tried swapping to older TMX - helped quite a bit - ran a lot better but still some big bogs when it had to work in deep sand
(That carb was working fine on my 144)
A bit over it to be honest . may just throw on the 144 kit I before I go any further.
You definitely cant say that the bog issue is only related to a WR

Im a bit disappointed with the power delivery though - a bit all or nothing and doesn't feel like it really likes revving like the WR 125 did.
I think an extra power valve spring may help a bit so that's also something I may try.
Another option I am thinking is adjusting the ignition timing to retard it slightly - thoughts?

On my stock 2013 wr125 I went to a 450 main, 40 pilot, stock slide and c clip on stock needle (edey 15-74) in middle postion and bike ran great no bog and pulled hard for stock 125.

4 or 5 slide?
Running around on normal dirt its fine but under heavy load in deep sand - not fine
I guess I could also try richer jets but needle wants to be at leanest setting

My '09 WR liked the stock CR jetting listed in the manual. Our climate is a little different up here though, so....

The slide is stock I believe a 4 and I live at 2000 feet above sea level. I was testing bike on sand track and riding it as hard as I could and plug looked nice.