ChrisDogg Posted February 22, 2011 Report Share Posted February 22, 2011 Hey all, I just got back from Dumont this past weekend and am looking for some advise from the Banshee community. Before i go into what my issue is let me give some info on what I have; an 02 shee, big bore kit (done recently), K&N's, boyseen reeds, mixing at 32:1, TORS removed and br8es spark plugs. I've had the right spark plug pop out, which essentially causes the bike to bog out and i loose power obviously. Plugs were new and the oil was a dark black on the plug. When i say the plug poped out, its as if the plug was loose and simply unscreswed itself. This has happened to me 3 times now, initially i thought maybe it was just high compression since i had just had the big bore kit added and i dismissed it, now though i've had plenty of time to break in the new kit and i'm stumped on what the issue might be other than maybe having to re-jet....? Any suggestions/ideas? Quote Link to comment Share on other sites More sharing options...
Boston Posted February 22, 2011 Report Share Posted February 22, 2011 well give us more detail we need to know what your jetting is. what compression you at? timing? type of fuel? Quote Link to comment Share on other sites More sharing options...
Larry's Shee Posted February 22, 2011 Report Share Posted February 22, 2011 Who did the big bore and what is your squish? Quote Link to comment Share on other sites More sharing options...
sleeper06 Posted February 24, 2011 Report Share Posted February 24, 2011 pre ignition from low octane or deto from lean jetting or both,seen it a million times and im pretty sure you know but dont ride it like that or your new top end will be junk if its not allready Quote Link to comment Share on other sites More sharing options...
06specialedition Posted February 24, 2011 Report Share Posted February 24, 2011 pre ignition from low octane or deto from lean jetting or both,seen it a million times and im pretty sure you know but dont ride it like that or your new top end will be junk if its not allready X2. Sounds like deto issue. I wouldn't ride that unless you want to be putting a new top end in. I would make sure you haven't already done some damage since the plugs have backed out three times. You may need to be running race fuel. Who is your builder? Compression? Quote Link to comment Share on other sites More sharing options...
RadarRacing Posted February 24, 2011 Report Share Posted February 24, 2011 These guys are telling you right. Its from detonation. You either are lean in one spot of your jetting or very likely have a poor dome design or squish, airleak or another issue with your new setup. Also we dont call a .040 over setup a "BIG BORE" and if your builder or dealer calls it that run as fast as you can to another builder that knows what he's talking about. Your plugs should never have black oil on them so something is wrong with your jetting and setup. Quote Link to comment Share on other sites More sharing options...
ChrisDogg Posted March 22, 2011 Author Report Share Posted March 22, 2011 Thanks guys for the feedback. To answer some of the questions: I dont know what my compression is, the BORE was done out of RIS Designs here in LA area. The work was done in November, I've taken the bike out 3 times since, I didnt have any issues on the first weekend out but the last two I've had this happen. So pretty much it sounds like you guys are saying its a pre-det issue most likely from jetting and or air leak/dome issue. Aside from going back to RIS, is there anything that I might be able to do myself or is going back to RIS my best bet? Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.