KLF300 1994 spark plug cap resistance

[Params_sweden]

Hi! I'm new to the forums  I'm working on my klf300 that isn't starting anymore. I accidentally ripped apart the spark plug cap, and I'm curious to know the resistance of the original part, it's not mentioned in the manuals. If anyone with a KLF300 could measure their OEM or known working replacement spark plug cap I would be very happy  NGK for example has spark caps with resistances 0, 5, 10, 15 ohms so it seems to be something that I would like to match as close as possible with the original part.

Thanks,

Pär, Sweden

[Params_sweden]

I found it in the '89 KLF400 manual, for some reason it's not listed in the later manuals. The spark plug cap resistance is between 3.75-6.25 kOhm.

[Gwbarm]

Don't have a Kawasaki, but for my yamaha 400 the manual states it should be 10000 OHMs, the after market coil I just received only had 7 , and the one I ordered before that only had 3. If you need to replace it go OEM to get the correct specs.

[Mech]

The test in the book says to test the coil with the cap off the lead, and it should be between 10-16 Kohms..  I suspect the cap doesn't have a resistor built into it.

Use a small split pit shoved up the lead and clipped onto the spark plug and try running it, if it runs ok and doesn't make massive interference to a nearby radio then it will probably have a resistor lead on the coil and it will be ok with a zero resistance cap.

[Gwbarm]

Thats about the same resistance I have been getting from the aftermarket coils, so maybe they are OK, I was just going by the yamaha manual specs.

[Params_sweden]

Thanks for your input, I'll give the radio test a try in a moment! Like almost every Bayou owner mine has ignition issues, in my case weak spark or no spark, so I'm trying to rule out everything one step at a time. I ordered a NGK spark plug cap VD05F with 5kOhms resistance, it was like 30% of the OEM part price

[Pod]

On 3/23/2023 at 8:55 AM, Params_sweden said:

Thanks for your input, I'll give the radio test a try in a moment! Like almost every Bayou owner mine has ignition issues, in my case weak spark or no spark, so I'm trying to rule out everything one step at a time. I ordered a NGK spark plug cap VD05F with 5kOhms resistance, it was like 30% of the OEM part price

did it solve you issue?

[Params_sweden]

@Pod It was the ignition coil all along, came to the conclusion in my other post yesterday This NGK spark plug is now mounted and the spark is blue and consistent.

[Gwbarm]

Thats great you got it fixed, did you end up going with an OEM coil or aftermarket, some of the other guys with the same issue might be interested in which coil you ended up getting. 

[Params_sweden]

@Gwbarm Yeah feels good! I bought an aftermarket China part from a Swedish seller, unfortunately it's a no-name product, when I got it it didn't match the image on the sellers site. Here's a link https://www.merafritid.se/tändspole-kawasaki . It came without spark plug cap, the "ignition wire" has a black outer rubber and a white center.

[Gwbarm]

I know that feel , a feeling of accomplishment when you have worked so hard on something and get it going, after years of doing this I still get it. Good luck!

[Mech]

There's little or no satisfaction in doing what's easy. There's always satisfaction after overcoming difficulties.