Suzuki 800 Intruder Club & Forum
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Suzuki 800 Intruder Club & Forum

A UK Site Dedicated To The Suzuki C800, VL800, VX800, M800, VZ800, VS800, C50, M50 Model Intruder / Boulevard / Marauder
 
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 Weak spark

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smitty3855
Prospect
smitty3855


PostSubject: Weak spark   Fri Apr 14, 2017 2:28 am

Hey guys I have a problem I cant figure out. My 03 Marauder vz800 has weak spark from both coils, crank it over and spark real weak and then sometimes it will throw a good spark and then back to weak. I have checked connections , put new AGM battery in , new plugs. Could the CDI be bad? I hope not $ Any ideas? Thanks.... Tim
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hmac
Member
hmac


PostSubject: Re: Weak spark   Fri Apr 14, 2017 8:10 am

Always try the cheap stuff first. Could be the coils, check them with an ohmeter, check across positive and negative terminals (Primary) should be be from 2 - 6 ohms. Then check from either positive or negative to the plug lead out (secondary) should be between 15 and 30 K- ohms. Hope it's not CDI.
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smitty3855
Prospect
smitty3855


PostSubject: Re: Weak spark   Sun Apr 16, 2017 12:29 am

coils check good. signal coil or pulser coil in side case with stator ohms 178. I read its supposed to be between 170-280 ohms but it was only 40 degrees f when I tested it. My experience with CDI over the years is they work or not, but mine will throw a good spark sometimes. But I don't know what else it could be. Tim
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