Maintenance & Technical > KX100 / KX85 / KX80 / KX65 / KX60
KX65 plug reading after full engine rebuild - with pics
bandit88:
--- Quote from: Mike-Evans on June 27, 2016, 06:46:14 AM ---On the way back to the van, the bike was hot after 30 mins riding, there was a lean bog straight off idle, got the fastest idle rpm about 1 1/2 turns put on the air screw. Lean bog was not there when we starting riding tonight??
--- End quote ---
I would check for a air leak. Maybe something loosened up? Also, I had the mixture screw back out on me while riding. Check that too.
Foxx4Beaver:
--- Quote from: Mike-Evans on June 27, 2016, 06:46:14 AM ---Why would the jetting now require adjustment after a rebuild? The bike picks up perfect from the throttle just being cracked open and crusing in third, then opening it up.....
On the way back to the van, the bike was hot after 30 mins riding, there was a lean bog straight off idle, got the fastest idle rpm about 1 1/2 turns put on the air screw. Lean bog was not there when we starting riding tonight??
--- End quote ---
because you now have a "tight" fresh motor....it's not unusual at all to have to re-jet after a rebuild, in fact, it's always a "good thing" to check your jetting after a rebuild....that way you don't take the risk of blowing a new motor, and all the money/time you put into it.
that plug looks much "safer" now.
you may need to try going up one size on your pilot jet, to get rid of that "lean bog off idle" you mentioned.
Mike-Evans:
Cheers guys, ill raise the needle 1 position next time out.
Im extremely paranoid now with making sure the top and bottom end is in good condition and not having one or both of them fail on us again.
What checks/maintenance should I perform, and how often?
Foxx4Beaver:
keep the filter clean...
change the gearbox/tranny oil often...
use good full synthetic 2 stroke oil in the pre-mix....and stick with the 40:1 ratio you're running it at, otherwise, every time you change the pre-mix ratio, you really need/should re-jet it to the different ratio....so just stick with 40:1...
grease the suspension and linkage as needed, usually 3-4 times a year for the average weekend warrior rider will be good....
try not to use soaps/degreasers when washing it....soaps/degreasers do find their way into suspension bearings and break down the grease...
Mike-Evans:
Thanks mate.
What about top end inspection/ring-piston replacement?
Also what about bottom end inspection/replacement?
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