Two quickies please: How do I know the oil level in a '98 Speedfight 100? (seems not to have a dipstick attached to the cap). Also, How do I remove the spark plug? Not been started for 2 years. Thanks, Bryan.

Some people have tried several methods to see the oil when it seems nearly invisible.
One is to drill really tiny holes in the dipstick , and the oil will fill the holes where it is at that level.
Check with your local Troy-bilt dealer to see if a dipstick-cap is available,
God bless your efforts.

If you can't see separate oil dipstick (usually has an yellow plastic handle), then your oil level dipstick is connected to oil filler cap. When you unscrew the oil cap you'll be able to see the dipstick and level meter.

there shouldn't be a filler tube, just a dipstick tube for checking the oil level. to put the oil in the engine, there should be a oil cap on the right hand side valve cover. if the dipstick tube isn't there, you definitely need to get one from a parts yard or store, you can be losing oil from the dipstick hole that goes to the oil pan...

On top of motor. Shoud be a oil cap with a dipstick attached.

No dipstick then you fill it all the way to the bottom of the oil fill hole. If you have a riser type oil filler the dipstick should be attached to the cap. Worst case senerio remove the low oil level sensor and fill with oil at that point until you can no longer add oil without making a mess, I am sure there is a gray oil cap somewhere. That is where your supposed to add oil until you can no longer add oil without it overflowing.

Thanks for choosing FixYa,
Kelly

either there is compression from cylinder getting into crankcase pushing the oil out or the oil level is too high.

The 2003 e-class doesn't have an oil dipstick. Engine oil level is gauged electronically. Park the vehicle on level ground and cycle through the display using the buttons on the steering wheel. One of the options there will assist with the correct oil level and let you know if it's ok, too much or too little. Do note that there is an oil filler tube with a cap but this is really for filling the oil as well as removal with a vacuum suction tool in the work shop. The cap doesn't have a dipstick at the end.

On the right side case cover, at the bottom towards the rear, there will be a sight glass.
If the oil is dirty, it seems hard to find because it blends in with the motor.

Just remember this, if it has a sight glass, usually the oil cap does not have a dipstick.

If the oil cap has a dipstick, then that is you means of checking oil level

about three QTs

The bike has to be both level and vertical when you check it - not on the stand.
It would be good if someone can hold the bike up for you when you remove the filler plug (which has the oil level dipstick attached) from the cover on right side of engine, Or you may be able to sit on it , holding it upright with your legs and reach down with right hand to remove the filler cap/dipstick.
Wipe off the stick and re-insert it and screw it all way closed, then immediately remove it again. The oil level shoud be between the two indicator marks on the flat tip at the very end.
If bike is on side-stand you will see nothing on the stick - bike must be upright,
If you need to add any oil, use a funnel and put the oil in through the same hole the cap/dipstick goes into. Best use a motorcycle specific oil - automobile oils contain additives that can cause clutch performance issues
Good Luck!