How do I check the oil level and add oil to an 83 yamaha maxim?

Question edited for clarity and add maker.

Periodic oil change: 2.35 lit (2.5 US qt.)
With oil filler replacement: 2.65 lit (2.8 US qt.)
Recommended oil:




This is a terrible format, but here is the service manual

XJ750J (Maxim) Service Manual

xjcd.org https://xjcd.org > index.php > book > export > html
YAMAHA. XJ750J. Service Manual. FOREWORD. This model was originally covered only by a Supplementary Service Manual. For complete information on service ...

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I think what you are looking at is the crankcase vent line.....the blowby gases from the engine flow into the airbox to be burnt with the incoming air.
Have a close look at the oil level in the crankcase....Yamaha usually has an oil window ....down low on the side of the crankcase....with the bike warmed up and shut down a few minutes on the centerstand...the oil level should be about half way in the glass.....overfilling the crankcase will cause the oil carryover situation you describe.

Most bikes will take up to 3 qts, use only full synthetic motorcycle oil, in the 5 or 10w 30 weight, should be good. Put in 2 full qts then slowly add the third, but watch the level when you are pouring. Some will take just under 3 qts. Depends on the bike, clutch, etc. Hope this helps.

Should be 3.5 Liters / quarts with the filter change. Put in 3 liters then top up as needed to get the level to the top of the viewing window.

To check your oil, bike should be level, on it's center stand, engine should NOT be running!

Any oil viscosity between 10w30 and 20w50 will work just fine. Smaller numbers if the weather's cooler and/or you only do short rides. Bigger numbers for hot weather and longer rides.

Look for a round inspection window on the lower left or right side of the engine there will be a oil level marks high low marks check the oil with the bike in level position.

Put your bike on the high stand and thn check the oil level at the right handside cover just above the brake pedal. It should be fully covered with oil.
The standard capacity of oil for is around 2.5litres without the oil cooler and if with oil cooler (the one tht frm XJ650) the oil capacity is thn 3.8 litres.
For more info plz visit www.xjbikes.com

there is a sight glass about the size of a nickle directly below the filler plug ,oil level should be midway or close to the top,you should see the oil level in the glass window,if not you'll have to remove the cover and clean or replace the sight glass window....

Start engine till running temp is reached ,while the engine is hot ,remove the engine drain plug, and then remove the oil filter unit . Take great care as the oil will be hot and could burn skin .then once the oil stopps dripping replace draion plug and insert new oil filter unit .replace with good quality engine oil recommended for your bikes engine..once the new oil has been put in the engine , to required level in sight glass ,start engine and allow oil to go around the engine ,your oil level will drop as the oil filter will fill up .run for a few minutes and recheck your oil level ,and add to required level .

There are two way most bike have to check oil level. on the right side there should be a round plug that says something like 10w40 unscrew this and there is a dipstick on the end. the other way is again on the right side there will be a sight glass about the size of a quarter with 2 marks next to it work just like a dipstick and as always to get accurate readings the bike need to be level front to back, side to side

I have a 1985 Maxim XJ700NC There is a window on the side case for proper oil levels when the bike is on the center stand. The only recommended oil should be Yamalube 20-40. Do not use automotive oils. There is a slight difference in the makeup of the oil as the bike is oil cooled, and you have a "Wet Clutch". The energy conservation oils have emulsions in them that will ruin your clutch plates.