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FJR Motorcycle Forums
Technical & Mechanical Problems
2007 Cranks once and then acts like the battery is dead
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<blockquote data-quote="HaulinAshe" data-source="post: 1263628" data-attributes="member: 1875"><p>Replace the starter relay (starter solenoid) first, BEFORE you spend the money for a starter. (Or have the dealer quote and do the job for you.) No sense replacing a starter without also replacing the starter relay too. Standard mechanic wisdom dictates replacing both components together, because bad starter motors tend to fry starter relays.</p><p></p><p>The logic is simple, replace the lesser expensive and more accessible of the two components first. You may also accidentally discover a loose or corroded connection in the process that is the root cause. Hold off on replacing a starter motor until the easier and cheaper possibilities have been exhausted.</p><p></p><p>Q. When you say NEW BATTERY, does that mean a brand new battery that you filled for the first time yourself, or one that was already filled and sitting on someone's shelf? It may matter.</p><p></p><p>Q. Locate the starter relay and take voltage readings while the starter is activated. Read positive voltage off both of the large wire connections and compare the readings. If there is a significant difference then you have a faulty starter relay for sure. There should be very little voltage drop across the internals of the relay.</p><p></p><p>Try to do your voltage readings using two different grounds/negatives; the negative battery post, and a good metal frame ground. If there are big differences in readings, you have a faulty ground somewhere.</p><p></p><p>FJR starter failures are almost unheard of until well above the 100,000 mile mark. And they commonly/typically last for 200,000 or more. Don't go there until you have some strong indicators it's required.</p></blockquote><p></p>
[QUOTE="HaulinAshe, post: 1263628, member: 1875"] Replace the starter relay (starter solenoid) first, BEFORE you spend the money for a starter. (Or have the dealer quote and do the job for you.) No sense replacing a starter without also replacing the starter relay too. Standard mechanic wisdom dictates replacing both components together, because bad starter motors tend to fry starter relays. The logic is simple, replace the lesser expensive and more accessible of the two components first. You may also accidentally discover a loose or corroded connection in the process that is the root cause. Hold off on replacing a starter motor until the easier and cheaper possibilities have been exhausted. Q. When you say NEW BATTERY, does that mean a brand new battery that you filled for the first time yourself, or one that was already filled and sitting on someone's shelf? It may matter. Q. Locate the starter relay and take voltage readings while the starter is activated. Read positive voltage off both of the large wire connections and compare the readings. If there is a significant difference then you have a faulty starter relay for sure. There should be very little voltage drop across the internals of the relay. Try to do your voltage readings using two different grounds/negatives; the negative battery post, and a good metal frame ground. If there are big differences in readings, you have a faulty ground somewhere. FJR starter failures are almost unheard of until well above the 100,000 mile mark. And they commonly/typically last for 200,000 or more. Don't go there until you have some strong indicators it's required. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
2007 Cranks once and then acts like the battery is dead
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