Maintenance & Technical > KX100 / KX85 / KX80 / KX65 / KX60
KX60 HELP! In need of rebuild!
chris-mets:
That picture makes me understand a little more. I think I want to start with the kx since it is probably more simple and we already know all about it. So if I buy a bigger or smaller pilot jet this will fix the problem of all the power loss and bog? Let me know what I have to buy from that jetsrus site and ill go ahead. Also do they combine shipping costs? cause 7 bucks is a lot of money to ship a jet so Im thinking if I buy the yz and kx jets altogether it will be cheaper? Let me know. Im glad your guiding me through this. Thanks
Chris
Friar-Tuck:
Hey Chris,
Yes, they will combine the shipping.
If I remember when you were working with the carb on the KX, the bike ran better when went from two to three on the clip, and there is a bog off Idle until the engine picks up. that sounds like you need more fuel. since there is no air screw to help fine tune that pilot circuit, I say get the next size larger pilot.
Before you do anything with the YZ.
Lets see if the pilot is anywhere close. Warm the bike up and pull it in to where you work on it.
Shut it off and we are going to re-set your air screw.
Turn your Air screw in until it gently seats.
The end of the air screw is easily messed up so you have to be careful.
Now you need to turn it out (counterclockwise) 1 1/2 turns.
Find a spot on your carb or make a mark so you can count in 1/2 turns of the screw.
(watch the flat of the screwdriver)
Go ahead and start the bike and take a spin. how does the engine re-act better or worse ?
If you don't notice any difference, shut the bike off and turn the air screw in, a half turn (this will richen the mixture by cutting off some of the air mixing in the pilot circuit)
start the bike and take another spin. Better, worse or still no difference?
No difference? Turn the air screw in another 1/2 turn. Start the bike and take another spin.
There is only a half turn left in the air screw. if you didn't feel any difference in the performance,
we start over.
This time after gently seating the airscrew closed, we will open the air screw 2 full turns from gently seated. we are going to lean the pilot and see if we have an improvement.
Take the bike for a spin. Better worse or no difference?
Bring her in and shut down the bike.
turn your air screw an additional 1/2 out (leaning out the pilot circuit some more)
Take the bike for another spin Better Worse or no Difference
Take another 1/2 turn out (continuing to lean out the pilot circuit)
You should see some difference at three turns out.
It probably takes longer to read all this than it will to test your airscrew/pilot.
You will know if the engine picks up any better or not by the time you hit the end of the driveway!
Report back with what you find and we can go from there.
If you want you can give me a ring tommorrow while you are testing.
Tuck\o/
chris-mets:
Ok good to hear that they combine shipping. Im pretty sure my kx has a 30 pilot jet so I would go 32.5? or 35? or am i thinking the main jet? Ill check in the manual tomorrow. With the yz, I will try what you said to do. When you say gently seat the air screw, do you mean to screw it all the way in? THanks
CHris
Friar-Tuck:
Yep You got it.
the end of the screw is pointed. It fits in a tapered seat. If you crank down on it it could ruin the carb body as it is not repairable, or mushroom the end of the screw (remember its brass)
You will be fine, you can give me a ring after 8am my time.
Tuck\o/
chris-mets:
Ok so I gently screw it in all the way...And what would I go on the kx? 32.5 or 35? and is it the main jet or pilot?
CHris
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version