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FJR Motorcycle Forums
Technical & Mechanical Problems
FJRF011: Fast Starter Syndrome
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<blockquote data-quote="Graham Downunder" data-source="post: 975649" data-attributes="member: 3550"><p>After having reading the above posts I have to say there are probably several different causes for similar problems .</p><p></p><p>Fuel pump not presurising the system correctly ( cycling key shoud fix this )</p><p></p><p>poor quality fuel (E10?) can affect any engine ( injectore cleaner and better fuel )</p><p></p><p>Fuel injectors leaking fuel into cylinder and removeing oil on the cylinder walls ( injector cleaner ,better fuel, maybe some top end lubricant like Morleys added to fuel occasionally may help )</p><p></p><p>One thing that no one has discussed is a dirty set of contacts in the starter button .This is not that uncommon on Vstroms and other bikes . I believe you get erratic voltage drain because of high frequency contact /no contact caused by the switch. This can play tricks on the computer and relays . Unfortunatly it very hard to test this happening as it may only happen a few times in a bikes life . Solution is to inspect and clean the contacts in the switch .I have to say I found slight signs of arcing on my Vstrom ,cleaned the contacts and the bike has started better since . Probably do the fjr tommorrow .</p></blockquote><p></p>
[QUOTE="Graham Downunder, post: 975649, member: 3550"] After having reading the above posts I have to say there are probably several different causes for similar problems . Fuel pump not presurising the system correctly ( cycling key shoud fix this ) poor quality fuel (E10?) can affect any engine ( injectore cleaner and better fuel ) Fuel injectors leaking fuel into cylinder and removeing oil on the cylinder walls ( injector cleaner ,better fuel, maybe some top end lubricant like Morleys added to fuel occasionally may help ) One thing that no one has discussed is a dirty set of contacts in the starter button .This is not that uncommon on Vstroms and other bikes . I believe you get erratic voltage drain because of high frequency contact /no contact caused by the switch. This can play tricks on the computer and relays . Unfortunatly it very hard to test this happening as it may only happen a few times in a bikes life . Solution is to inspect and clean the contacts in the switch .I have to say I found slight signs of arcing on my Vstrom ,cleaned the contacts and the bike has started better since . Probably do the fjr tommorrow . [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
FJRF011: Fast Starter Syndrome
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