thanks.
the manual recommend API SF or higher with engine oil grade either 20W40 or 20W50. i have just changed to Schaeffer supreme 7000 15W40 since this oil is very well built and cost almost the same as the cheapest decent low grade only API CH-4 rated HDEO here. i choose the 7000 over 9000 as it might be more shear stable due to viscosity spread. but i am a bit confuse as the data sheet show the 9000 have better HTHS and perform slightly better in the ASTM D7109 shear test? i think schaeffer 5w40 is a rare exception that it perform better then it 15w40 in this 2 areas.
will do a UOA after the 2nd oil cheap as previously i was using some castrol HDEO blend with schaeffer EP moly treatment. Man, that stuff is thick!!!
i am living in Singapore. it happen to have a wiki article on this
COE thingy. haha...
thankfully for bike, the COE is still quite affordable. but compare to a couple of years ago, it have raised sharply. as for car, the price of the COE is worth a brand new car itself hence more and more folks here are turning to motorcycle which cause the increase as there is a quota on the number of COE monthly. the government have reduced the number of new car allow on the road to control road congestion causing the sharp raise in price.
such small bike generally is quite lasting and cheap to maintain hence it popularity. in the distance past when their parts are still built in Japan, these litte bugger seem to last forever. we can still see bike of 20-30 plus years on the street especially those 2-stroker.
i ride about 18,000-20,000km per year. i got the bike when i decide to go for part time study. public transfer is a killer during peak hours. so this little bugger is zapping me around for work and study.
thanks for all the advice and help dnewton3. appreciate it. will update you guys when i hit the necessary mileage.