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FJR Motorcycle Forums
Technical & Mechanical Problems
FJRF009.2: "Intermittent Ground Wire Connection"
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<blockquote data-quote="FJRScrewball" data-source="post: 905381" data-attributes="member: 18890"><p>Bramfrank is not completely accurate on what I said in my message to him.</p><p></p><p>Here are the symptoms I noticed:</p><p></p><p>Engine started dying sometimes when coasting to a stop or when sitting at a traffic light. It would always restart. When troubleshooting it in the garage it finally died and would not restart. In diagnostics mode the sidestand switch and fuel pump were not working. When I turned the key on the fuel gauge bars would all light up and flash, then go out, then flash again. I didn't count how many times they flashed. I didn't notice anything else but there could have been other things.</p><p></p><p>I decided to remove the left side fairing, fuel tank and heat shield to look things over and found the top of the spiders black plastic cover resting against the engines #1 cylinder. It had a hole melted in the black plastic cover. It was obvious it started from the outside by the shape of the hole. I inspected the spider and inside of the connector and cleaned everything up. There was no corrosion but black soot was on the spider from it arcing to the engine. If the engine and the spider were the same electrical potential then why did it arc?</p><p></p><p>After cleaning up the spider and connector I did a continuity check from the spider to a bolt on the frame and it read 1 ohm. The bolt was not an engine mount bolt. It was a bolt that connects the main frame to the rear subframe.</p><p></p><p>The two spiders were not secured to the main harness that runs along the left frame and I tie strapped them to it to prevent this from happening again.</p><p></p><p>After looking at the list RZ350 made of the location and function of all the spiders I guess this was spider #2.</p><p></p><p>Hope this clarifies things for everyone.</p><p></p><p>Screwball</p></blockquote><p></p>
[QUOTE="FJRScrewball, post: 905381, member: 18890"] Bramfrank is not completely accurate on what I said in my message to him. Here are the symptoms I noticed: Engine started dying sometimes when coasting to a stop or when sitting at a traffic light. It would always restart. When troubleshooting it in the garage it finally died and would not restart. In diagnostics mode the sidestand switch and fuel pump were not working. When I turned the key on the fuel gauge bars would all light up and flash, then go out, then flash again. I didn't count how many times they flashed. I didn't notice anything else but there could have been other things. I decided to remove the left side fairing, fuel tank and heat shield to look things over and found the top of the spiders black plastic cover resting against the engines #1 cylinder. It had a hole melted in the black plastic cover. It was obvious it started from the outside by the shape of the hole. I inspected the spider and inside of the connector and cleaned everything up. There was no corrosion but black soot was on the spider from it arcing to the engine. If the engine and the spider were the same electrical potential then why did it arc? After cleaning up the spider and connector I did a continuity check from the spider to a bolt on the frame and it read 1 ohm. The bolt was not an engine mount bolt. It was a bolt that connects the main frame to the rear subframe. The two spiders were not secured to the main harness that runs along the left frame and I tie strapped them to it to prevent this from happening again. After looking at the list RZ350 made of the location and function of all the spiders I guess this was spider #2. Hope this clarifies things for everyone. Screwball [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
FJRF009.2: "Intermittent Ground Wire Connection"
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