beeaj Posted February 2, 2011 Report Share Posted February 2, 2011 Having finally got my barrel and wossner piston checked for fit it's time to re-assemble. Should the new small end bearings be lubricated with anything before assembly and what are the correct barrel and head torque settings. Also I was told the fit was a good one but to run it in carefully, should my fuel mix be on the slightly rich side when doing this? thanks Quote Link to comment Share on other sites More sharing options...
gronno Posted February 2, 2011 Report Share Posted February 2, 2011 I think a little lubing with 2T oil is the order of the day, not sure about more oil in the premix but I'd think it would be a good idea, someone more knowledgable will no doubt be along shortly. Where'd you get the piston kit from? Quote Link to comment Share on other sites More sharing options...
02-apr Posted February 2, 2011 Report Share Posted February 2, 2011 You could richen the mixture, if you must, by carb adjustment but does anyone do this even with a new bike? I suspect not. Just putting more oil in the petrol weakens the carburetion causing hotter running so it is not generally advised. Quote Link to comment Share on other sites More sharing options...
ormplus Posted February 2, 2011 Report Share Posted February 2, 2011 on all our new bikes we have bought we mix one tank of fuel 100cc to 5ltr petrol.put 2t on your small end and put 2t on your piston and rings.as for bolts we just tighten up till they are tight. cheers willie. Quote Link to comment Share on other sites More sharing options...
jse Posted February 3, 2011 Report Share Posted February 3, 2011 Having finally got my barrel and wossner piston checked for fit it's time to re-assemble. Should the new small end bearings be lubricated with anything before assembly and what are the correct barrel and head torque settings. Also I was told the fit was a good one but to run it in carefully, should my fuel mix be on the slightly rich side when doing this? thanks Cylinder head screws_ 8 to 10 ft lbs 11 to 14 Nm Cylinder nut__________18 to 20 ft lbs 25 to 27 Nm I usually tighten the head capscrews by hand as most torque wrenches don't read well at those low settings. The trick is to heat cycle the engine (riding sessions) a couple of times and re-torque the head fasteners. They use copper washers to seal coolant so they will compress a little at first and this will avoid o-ring leakage in the future. Jon Quote Link to comment Share on other sites More sharing options...
beeaj Posted February 3, 2011 Author Report Share Posted February 3, 2011 I think a little lubing with 2T oil is the order of the day, not sure about more oil in the premix but I'd think it would be a good idea, someone more knowledgable will no doubt be along shortly. Where'd you get the piston kit from? Hi Piston kit from Ebay, http://cgi.ebay.co.uk/Wossner-Piston-Gas-Gas-TXT250-01-09-Sale-Price-/380297828362?pt=UK_Motorcycle_Parts&hash=item588b84580a they have three sizes and I got the largest 72.49 which was pefect for my 2003. Quote Link to comment Share on other sites More sharing options...
beeaj Posted February 3, 2011 Author Report Share Posted February 3, 2011 Cylinder head screws_ 8 to 10 ft lbs 11 to 14 Nm Cylinder nut__________18 to 20 ft lbs 25 to 27 Nm I usually tighten the head capscrews by hand as most torque wrenches don't read well at those low settings. The trick is to heat cycle the engine (riding sessions) a couple of times and re-torque the head fasteners. They use copper washers to seal coolant so they will compress a little at first and this will avoid o-ring leakage in the future. Jon Quote Link to comment Share on other sites More sharing options...
beeaj Posted February 3, 2011 Author Report Share Posted February 3, 2011 Cylinder head screws_ 8 to 10 ft lbs 11 to 14 Nm Cylinder nut__________18 to 20 ft lbs 25 to 27 Nm I usually tighten the head capscrews by hand as most torque wrenches don't read well at those low settings. The trick is to heat cycle the engine (riding sessions) a couple of times and re-torque the head fasteners. They use copper washers to seal coolant so they will compress a little at first and this will avoid o-ring leakage in the future. Jon Thanks for all the advise everyone Quote Link to comment Share on other sites More sharing options...
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