waynerobshaw Posted April 28, 2012 Report Share Posted April 28, 2012 (edited) Hi All, Some of you may remember this problem before: http://www.trialscen...-choke-onfixed/ Unfortunately, its back again Last time, a decoke seem to fix it, but surely I don't need to do it again already! (November last year) So, just a quick question, could the dodgy seals in the exhaust front pipe (engine side and centre box double o-rings) have any bearing on the knocking problem. The reason I ask is that the exhaust is blowing a little at both where it bolts to the head and inserts in the centre box. Its a Titanium front pipe and its never really fitted correctly with the centre box (its seems too short! - was fitted by the previous owner). I bought 2 new rubber o-rings for the centre box, but the Ti pipe just doesn't mate correctly. Anyway, I was just wondering if the slight blowing of the front pipe could cause the knocking? Otherwise, another de-coke is on its way... Cheers, Wayne Edited April 28, 2012 by waynerobshaw Quote Link to comment Share on other sites More sharing options...
smalley250 Posted April 29, 2012 Report Share Posted April 29, 2012 A two stroke is dependant on exhaust pressure, so sort that out then go from there. Quote Link to comment Share on other sites More sharing options...
waynerobshaw Posted May 5, 2012 Author Report Share Posted May 5, 2012 Hi All, Just to let you know, as before, a decoke has cured the problem! I decoked the head and the pinking has vanished! It just likes a clean head Cheers, Wayne. Quote Link to comment Share on other sites More sharing options...
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