NGK Makes Really Good Spart Plugs.
It is a 18 mm socket that works to get the spark plug out, it took me a while to figure it out.
Yes it does.
I clocked my 1987 250x at 62mph using a friend's car following.
no you dont have to its a 4-stroke it runs on unleaded fuel no mix
10w-30
not fast enough
60
10 w 40 is what honda recomends
around 60mph
1.5 quarts
When its lose enough. Take a link out.
Depends how much money you want to invest into it.