cadman Posted November 2, 2005 Report Share Posted November 2, 2005 Recently bought a '03 315R. Riding in warm weather on w/e and at end of the day it was detonating. mostly at very low rev / idling. Fuel was 98 Octane + Elf 976 @ 80:1 Most of the day it seemed fine. So I'm thinking - maybe it could need the coolant replaced? - maybe thermostat wasn't working correctly? - maybe Fan? - maybe lift needle a notch? So I'll check all of above, but firstly I was going to check ignition timing ummm per the manual, doesn't look like that has any adjustment, the stator just seems to screw into the cover. So, is there any timing adjustment? Anyone else solved a detonation problem (not pinging) TIA for any info. Quote Link to comment Share on other sites More sharing options...
charliechitlins Posted November 2, 2005 Report Share Posted November 2, 2005 If it waited until the end of the day to happen, you have to go for the usual suspects. New plug Clean carb Check fan. Quote Link to comment Share on other sites More sharing options...
cadman Posted November 2, 2005 Author Report Share Posted November 2, 2005 If it waited until the end of the day to happen, you have to go for the usual suspects. New plug Clean carb Check fan. <{POST_SNAPBACK}> Yep will do them, but my questions remains...can the timing be adjusted? is there a doc somewhere that shows how? Quote Link to comment Share on other sites More sharing options...
trialsurfer Posted November 2, 2005 Report Share Posted November 2, 2005 It can be adjusted, but not without mods to the stator plate, also you have to be very careful not to go too far. Most of the detonation can be solved with carb changes, at sea level go to a 35 pilot. Quote Link to comment Share on other sites More sharing options...
masso Posted November 2, 2005 Report Share Posted November 2, 2005 ya, my biggest bitch with the 315! we run aviation gas...................that works Quote Link to comment Share on other sites More sharing options...
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