2008 SME newbees' ride. Sat 12 January. Meet at Botany BP 10am.

**ital916** · 13th January 2008, 20:04

lol cool so just get oil check level and pour some in, but if the gearbox is still sticky adjust clutch and pump in new iridium spark plug which was put in not too long ago anyway.

**Ixion** · 13th January 2008, 20:42

Pretty much. If the level is significantly down, y'd want to find where it went. In theory should never go down, but a little bit gets out here and there. Oh, and have a good sniff of the oil, before you top it up. You don't want to smell petrol in the tranny oil.

**motorbyclist** · 13th January 2008, 21:46

Originally Posted by MGST

Dunno about 2 strokes but on a 4 stroke the engine oil is the gearbox oil, it's an all-in-one affair. I should imagine a 2 smoker would be the same, but check first. To change it there will be a sump plug on the bottom of the cranckcase ( under the bottom of the motor / gearbox, it looks like a bolt ), unscrew it AFTER you've put a 2L icecream container there and let it drain out. Then put the plug back in, change the filter, and fill it up throught the dipstick hole. Fire it up for about 15 seconds so it can build oil pressure and then shut it off and let it sit for a while on level ground and centre stand if you have one ( 10 mins should be enough ) and then recheck the oil level and top up if needed. EASY

LOL

two strokes are completely different to a 4 stroke - there is no head to lube and the crank is lubed by the oil in the fuel - so only the gearbox needs oil and the gears more-or-less swim/splash in it without any pump

and as such, as ixion said, 2 strokes very rarely need oil changes as there's nothing really there to degrade the oil (unless something is seriously wrong with the gearbox and/or crank bearings/seals)

though i remember for a while (may still be the case) the honda CRF250 and 450 (four stroke dirtbikes) had seperate engine and transmission oil to increase the life of the gearbox etc