April 28, 201214 yr 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, 201214 yr by waynerobshaw
April 29, 201214 yr A two stroke is dependant on exhaust pressure, so sort that out then go from there.
May 5, 201214 yr Author 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.
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