Maintenance & Technical > KX500 Original

A question about spark

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Torch654:
I am getting things in order and it is going well (in no small part thanks to all the info here). My bike starts and runs well, sounds great now :twisted: . But it seems the spark is a lot weaker when the bike is warm. What is the most likely problem? Thanks for any help.

Robert

hughes:
Does the bike start when hot?? There is added resistance to elec. components when they are heated.

Torch654:
The bike is vary hard to start after it gets warmed up but starts good when cold. (I should have been more clear in my first post but I was going to work sorry) This led me to eyeball the spark and when it is cold is looks a lot weaker. I would also like to set up a folder in the gallery, I need an admin to do this for me, correct?

hughes:
Have you tried jetting (pilot) and air mix screw adjustments :?: How old are the reeds :?: They may need to be inspected. Compression test on a warm engine might be in order. You can set up your own photo gallery.

Torch654:

--- Quote from: hughes ---Have you tried jetting (pilot) and air mix screw adjustments :?: How old are the reeds :?: They may need to be inspected. Compression test on a warm engine might be in order. You can set up your own photo gallery.
--- End quote ---


The jetting is to the chart here, I will finish dialing the air screw on my next day off (hard to do on a bike that is set up to not idel and is hard to start warm) The reeds are carbon and look new (Fresh top end on a new to me bike) and a through series of compression tests sounds like a very good idea. Thanks for the input. I will look these things over this week and post the results.

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