thanks for the replys gents.......
sorry i should of described it better the smoke the bike produces is a thick heavey blue smoke which does not fully clear even when hot even on day to day use and as i been told by several mates on runs when they are following me also when i back off the revs it produces puff o smoke then to.. also the roker cover is starting to weep slightly
the jetting idea came from me havin an xr650r as my last off roader found that jet and pipe made noticable odds
to it in the grunt stakes..as for the tires think ill go for trail wings cos hopfully soon ill get the r1 and xjr back o road duty
thanks again guys......steven