open up your 2t reservoir.
top up if necessary.
best not to wait to top up only when theres only a little bit
left.
top up reguarly
honda ta150 is liquid cooled.
remember to top up on your coolant as well.
best to bleed your coolant reservoir once a year.
for your chain, use a stick to 'lift' it a bit to test if its too
loose.
do lubricate it reguarly but not with WD40!!! its harden your
chain
and once its brittle, it breaks easily and that can be very
dangerous.
pm if u need more help
just my 2 cents worth