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  #11  
Old 09-27-2016, 02:14 PM
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Changed also the crank seals today and still no difference.
I have tried to adjust the float level also but still no difference also changed one seal in the carb
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  #12  
Old 09-27-2016, 02:22 PM
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then you should check the crank bearing for play.

when you say "tried to adjust" the float level, is it adjusted correctly within the range? if it is a Keihin PJ/PWK it should be ~16mm.
engine operation should not change when you lean the bike over at least that much as you say.
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  #13  
Old 10-02-2016, 06:52 AM
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We got the bike running pretty good today and it idled pretty good but it smoked pretty much.
But after around 2 hours on the track the cylinder failed and the top end needs to be re-builded again



The cylinder was restored and it seems that it is damaged from the same spots where it has been welded, crap. It seized on high rpm, don`t know what to do with that bike, but I don't see anymore any point of send the cylinder to restoration for another 250eur. New cylinder is costing 630eur, maybe try to find somewhere some used cylinder? It seems that the sleeve is not replaceable, but on ebay there is one cylinder sleeve available, that`s strange.
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  #14  
Old 10-09-2016, 09:32 AM
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Just about any cylinder can be sleeved. You mentioned that the cylinder was welded? Who plated your cylinder? The top end platers won’t usually work on a welded cylinder. Many times the cracked cylinders are sent to me for proper repairs, something really sounds fishy.

Backing up a few steps; is your cylinder round & straight? Who measured it for you? Most cracked & welded cylinders need an iron sleeve installed to return them to a useable condition. A sleeve adds strength & stability to the top end. I’m sorry for all of the questions but this really sounds strange. It seems like somewhere along the line that somebody botched the job someplace. Too many times it’s said that the top end was just redone; Who in the heck did the job.

How about attaching some pictures of your problem? We need to see what’s up. I’m supposed to be retired but can help when needed.

JT
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