Maintenance & Technical > KX500 Original
2000 KX500 Project
umberto:
When you roll start it does it take a while for it to light off, or does it fire right away?
Pmcg:
my driveway is steep and maybe 20'-30' long. Its usually running by the time I hit the road.
umberto:
I'm just wondering if it is loading up and it takes a second to clear all the fuel before starting. If it bogs for a bit and then fires, it being rich may explain why you can bump start it but not kick start it. How does it run when it finally starts? Is the jetting clean?
I saw you have a lectron, but I didn't see what needle you have. My motor is an 88mm bore, and I am going down in needle from the 5.2 xl to a 3.2 xl on the advice of Dennis at Packard Racing where I bought the carb. Maybe your needle is too large, and/or set too rich initially. Just a thought, I'm sure some of the more seasoned guys might have some better ideas.
Pmcg:
I think this could be the exact issue. Im also at 88mm. Bike runs rough on the bottom but clears up on the top. My 44mm is from Packard as well and I'm running the 5.2 XL as well. Is this the same issue your having?
umberto:
Mine is just the opposite. It's clean on bottom and ROUGH on top. Did you buy your carb from Packard? If so, Dennis will swap needles with you for free. You just send him yours with return postage and he can get it exchanged.
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