What causes a four stroke to smoke?
Smoke After Warm Up Oil can enter the combustion chamber past the valve stem seals or pistons rings, so if this symptom persists then one of these components may be compromised. White smoke exiting the exhaust pipe after the engine has warmed is a sign that coolant is burning in the combustion chamber.
What causes a 2 stroke to smoke?
2 strokes smoke because the oil is mixed in with the fuel. If you’re getting smoke out of a 4 stroke engine, it usually means it’s running too rich, which means more fuel can be burned in the amount of air in the cylinder and you get incomplete combustion.
Is it bad to smoke a 2 stroke 4 wheeler?
But you’re in luck if you’ve got a 2-Stroke. Those engines normally emit a blue/gray smoke. Additional issues causing oil to burn on 2-Strokes or 4-Strokes include: Leaking valve seals.
Where did the Yamaha XJ650 Maxim sell for?
Post Sale Update: This Maxim sold for $7,600 after 42 bids on eBay in Chicago, Illinois. Yet another never-ridden Yamaha from my buddy in Chicago to complement the YZ80 and XT500 – this time we’ve got a XJ650!
What was the top speed of a 1982 Yamaha Maxim?
The Maxim had a 653cc air-cooled inline four that produced 71 horsepower and 42 pound-feet of torque, good for a top speed of 128 miles per hour. There was a one year variant called the XJ650RJ Seca, and that of course led to the Seca Turbo in 1983.
Why does my motorcycle have a lot of Blue Smoke?
A shiny, wet, black film on the plugs is a result of excess oil, and this causes blue smoke. Check and clean the air cleaner which may have become clogged, causing gray smoke.
What to do if you have blue smoke in your exhaust?
Inspect the piston ring and valve seals to ensure they are air-tight. If you are unsure how to do this and your user’s manual does not provide instructions, seek professional assistance. Failure of these seals results in burning oil, hence a blue smoke, and the seals should be replaced immediately. Check the ambient air temperature.
When did the Yamaha 650 Maxim come out?
Maxim: Legend in its own time, now for the price of a song, almost. □ In 1980 the Bright-Think Bulb at Yamaha was glowing hot enough to heat the Great Outdoors. Yamaha delivered its basic high-wattage idea the 650 Maxim. What if, some Yamaha people had asked, Yamaha builds a high-performance 650 motorcycle and gives it “special” styling?
What kind of engine does a Yamaha XJ 650 have?
Make Model Yamaha XJ 650 Maxim Year 1982 Engine Four stroke, transverse four cylinder, D Capacity 653 cc / 39.8 cu-in Bore x Stroke 63 х 52.4 mm
A shiny, wet, black film on the plugs is a result of excess oil, and this causes blue smoke. Check and clean the air cleaner which may have become clogged, causing gray smoke.
Inspect the piston ring and valve seals to ensure they are air-tight. If you are unsure how to do this and your user’s manual does not provide instructions, seek professional assistance. Failure of these seals results in burning oil, hence a blue smoke, and the seals should be replaced immediately. Check the ambient air temperature.