Question about 1985 Yamaha XJ 700 X Maxim

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What causes oil in my nuber one spark plug hole on a 1985 yamaha maxim 700

Keeps fouling the number one plug oil on plug when I pull it out

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  • Yamaha Master
  • 15,478 Answers

There are rings on the pistons that could be worn or it could be a valve stem seal that is leaking. The only way to tell is a cylinder leak down test.

Posted on May 17, 2014

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  • 2 Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: how much and what type of oil

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.

Posted on Apr 21, 2009

  • 15 Answers

SOURCE: Carburetor on yamaha xj700 maxim x

Actually, they're not Hitachi carbs. Since you have a 1985 "Maxim-X", the model number is actually XJ700XN. The XJ700 does indeed have Hitachi carbs but your bike, the XJ700XN Maxim-X has BS33 Mikuni carbs.

Careful with the model number, the XJ700 and the XJ700X are entirely different bikes.

By the way, if you want more answers about your Maxim-X, feel free to visit the "Maximum Maxim-X" web site at www.maxim-x.com and the lesser known FTP site for the Maximum Maxim-X web site at www.maxim-x.com/pix

HAP

Posted on Mar 24, 2010

  • 85 Answers

SOURCE: How do you determine the required oil level of the drive shaft?

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....

Posted on Apr 08, 2010

  • 1 Answer

SOURCE: my 02 yamaha yzf 426

I have had the same problem with my bike, but found out that the jets were wrong and had to down size two times and now i have had no problems starting up or if i have stalled the bike it only takes about kicks to get it running again.

Posted on Jul 15, 2010

  • 1 Answer

SOURCE: Where is the oil filter located on a 1985 Yamaha

the Yamaha xj700 maxim x (1985) DOES have an oil filter. it is on the front of the bike, about as far down as you can get. it's held on with one bolt.

Posted on Jul 27, 2010

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I have a 2012 Kia Sorento that keeps fouling out the number 2 plug. any idea what can be causing it to foul out.


Have you noticed the car losing water? How is the plug fouling? Does it have oil on the plug or is it wet with water? You could be losing a coil pack too.

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I am assuming it is oil fouled rather than fuel fouled. Oil fouling is usually due to valve stem seal leakage. Most engines have the oil return on the cylinder head at the rear. When the engine is shut off, some oil pools at the rear of the head. If the valve guide seals are worn, then the oil will leak around the stem of the #4 valve and eventually foul the plug. If there are no real issues with the engine other than this one, it is usually best to keep a clean plug or two available and swap out the plug periodically when fouling is detected. Then clean the fouled one and keep for reuse later. If it is happening too often, getting the cylinder head reconditioned is a good idea.

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I have a misfire on a 1989 s10 blazer 4.3 v6 pulled number 3 spark plug its got oil all over the where supposed to be firing


What you are probably experiencing is oil fouling of the plug due to valve stem seal wear. GM engines drain oil from the heads at the rear of the engine, so the #3 and #6 cylinders are most prone to this problem as oil will pool there on its return to the oil pan. The only solution is to replace the valve stem seals, but, knowing this is not a serious issue unless the oil fouling is excessive, you can simply clean the plug or swap it out periodically until engine rebuild is warranted.

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I have a misfire in my 89 s10 blazer 4.3 v6 I pulled number 3 spark plug it is got oil all overwhere it's supposed to be firing


What you are probably experiencing is oil fouling of the plug due to valve stem seal wear. GM engines drain oil from the heads at the rear of the engine, so the #3 and #6 cylinders are most prone to this problem as oil will pool there on its return to the oil pan. The only solution is to replace the valve stem seals, but, knowing this is not a serious issue unless the oil fouling is excessive, you can simply clean the plug or swap it out periodically until engine rebuild is warranted.

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Fouled spark plugs


Usually one of 2 causes. Most common is a bad valve stem oil seal allowing the oil past the valve stem when the engine is shut off.Second is a broken or bad oil ring on that piston. Be blessed.

Jan 02, 2014 | Ford Cars & Trucks

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One plug foul after 200 miles runs ruff


the next time it fouls check the plug when you take it out, if it is covered with oil then you may have a broken ring on the cylinder that is allowing oil to pass through to the combustion chamber and fouling the plug. Or the valves pay be letting oil drain in past the valve seats.

Jul 04, 2012 | Chevrolet Caprice Classic Cars & Trucks

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1998 Chevy Silverado K1500, 5.7 , number 5 cylinder keeps fouling the plug with oil. The insulator was broken in half vertically


If the insulator was cracked the plug would have been misfiring, unless it was broken while trying to remove it. If this oil fouling is an ongoing problem, and you have to keep changing the plug, buy a spark plug that is designed to fire when oil fouling is a problem. You may have to order one from a part catalog, such as JC Whitney. This would keep you going until you can get the problem repaired..

Dec 29, 2010 | 1998 Chevrolet K1500

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Plugs-keep-fouling-tried-3-different-plugs-what-can-i-do-to-solve-this-problem


What is causing the fouling? Engine oil? On a two cycle dirt bike, the fouling can be caused by excessive oil in fuel mix. I believe 50 to 1 is the correct ratio yet you may want to cut back, a little at a time, on the oil or run hotter fuel. The exhaust system will also accumulate enough oil sludge to impede the exhaust flow causing poor performance and plug fouling. A two cycle must breath freely to keep itself internally clean. Air cleaner to exhaust. Proper fuel mix should have little , very little. Good Luckand hopefully this helps you.

Dec 27, 2010 | 2003 Yamaha YZ 125

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Number 4 cylinder miss fire


Check your distributor cap & wires first. If all is ok pull the spark plug and check if it's oil fouled. If there is no oil on the plug the plug might be bad. if there is oil on the plug you can get an adaptor that screws over the end of the plug and shields it from getting oil fouled. Of course this is a temporary solution for a piston ring or valve seal problem. I had a caddy I ran with plug shields fo 5 years so they work! Good luck!....PS If your plug is oil fouled you can also use a heavier oil like a 20/50 or use 4 quarts of 10/40 and a quart of lucas oil stabilizer. This will help keep the oil where it belongs and don't forget to do an oil change every 2,500 to 3000 miles.

Sep 23, 2009 | 1997 Chevrolet Blazer

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Spark keeps fouling but no clue why


Are you losing gear oil.
When the crankshaft seal leaks, oil from the gearbox is sucked into the crankcase, and this can foul the plug.
Also check the plug gap, most guys set the gap too small. It should be 0,7mmto 0,8mm. The plug should be a B9 EG, or equivilant.
Now, you can also change the plug cap to a type that has a built in resistor, this also helps with plug life.
Note that 2 strokes use plugs way more than 4 strokes, and you should replace the plug every 15-20 hours to keep your riding pleasant.
Good Bike you have there
Cheers
Jon

Feb 15, 2009 | 2005 Honda CR 125 R

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