Maintenance & Technical > KX250 / KX125
1989 kx125 restoration master thread
dinkyguitar:
Don't get her too dirty now :-D
dinky,
queen of spodes:
I had the plug cap half removed yesterday.. went for another short ride a little while ago and the bike runs a little better now. Still not as fast as a new YZ125 but not horrible now. :)
queen of spodes:
What's up with my jetting? Mix is 32;1 with one step lower on pilot and main (rad valve). Bike smokes badly and I already have dampness forming around the end of the silencer. It has a bog off idle.. wants to load up if I don't rev it out.
Power is mediocre as I mentioned.. ugh. a little excitement around mid range and annoyingly flat on top. Still have the stock pipe installed so I could try the kinda beat-up PC pipe I have.
First things first though.. what's up with the jetting? I don't want to burn the bearings up but I also don't want to ride a lime green mosquito fogger. :(
Youtube from yesterday.. I just uploaded so give it a couple minutes to finish processing
http://youtu.be/qQGmPNThn3k
queen of spodes:
Putting this here since it was hard to come up with.. I can't remember the main jet I have.. it's either 145 or 147.5. Pretty sure I went with stock pilot and clip in 3rd spot. Carb has a brand new $120 slide. WIll pull bowl this week to confirm main jet size, but it seems like the bog/loading issue is either clip or pilot maybe. Then again maybe my main is still off due to the smoke and spooge.
1989 Kawaski KX125 jetting specifications:
OEM jetting
Main 155
Pilot 52
Needle R2067N
Clip 4th
Air Screw 1.5 turns out
Boyesen RAD jetting
Main 1-3 sizes smaller
Pilot STD
Needle STD
Clip 3rd
Air Screw 1.5 turns out
Pro circuit recommended jetting
Main Jet 155
Pilot Jet 58
Needle STD
Clip 3rd
Air Screw 1.5 out
FMF recommended jetting
Main Jet 148
Pilot Jet 62
Needle STOCK
Clip Position 3RD
Air Screw 1.5 out
bens87braap:
i will check my jetting on my 85 125 it rips with stock pipe after rebuild 1st 2nd 3rd gear lifts if u dont sit forward
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