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Re: Need cylinder and cylinder head torque specifications...
You dont need torque specs on that just use a 1/2 inch drive with you 14mm or16mm socket hold the wratchet right at the top and tighten it as tight as you could get it like that then use wratchet in normal position and just give it a little snugg it will be perfect i have done it a million time on the same type of bikes...
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G'day. The torque specs for the 8mm head bolts is 18ft/lbs.the jug?(cylinder or barrell) is just tightened down even & firm, as there is no acess for a torque wrench. OK. other things to note. Clean the cylinder first in solvent(kero or fuel).Then in warm soapy water in a bucket. Dry-(compressed air is best for this-wear eye protection).once dry lubricate all power valves with oil. Using a clean white rag-soak the end in your 2 stroke oil & wipe the inside of the cylinder surface untill the rag comes back clean(you will need to do it a couple of times-turn the rag over & do it again).Lube the new piston just before assembly-Also pour a little oil down the main bearing oil holes & over the big end too. Other things to be sure of are- Piston on the right way round-arrow to the exhaust. Rings right way up. Some 2stroke dirtbike rings will only go one way up.Look CLOSELY at the ring ends-on the upper or lower surface there may be an etched dot or "T" or "N" or other marking. the mark goes facing up(on both rings unless single ring piston). rings positioned with end gaps over the locating pins(the ring grooves have a pin in them to stop the ring turning) Piston pin clips in correctly. Powervalve moves freely. Again-watch when you fit the cylinder-it can be tricky to keep the ring end gaps over the locating pins as you feed the cylinder over the piston. Hope this all helps Regards(done this a thousand times)Andrew Porrelli
Did you ever done Decarb for your Motor Cycle ? It is recommended to do a Decarbonisation of Cylinder Head and Replace the liner every 30000 - 40000 Kms .
Black Smoke Can be Because of
1. Damaged Cylinder Liner
2. Dirty Cylinder Head
3. improper Combustion
4. Fuel problems
5. Fuel Pump / Carburetter Problems
need Physical Examination Foe a definite Solution