Question about 2008 Yamaha XT250

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1985 XT 250 timing marks

I have a 85 xt 250 4 valve.need help with timing marks.just did piston and rings.

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  • Yamaha Master
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Hi, Anonymous for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere $10 you can download another one. For more information about your issue and valuable "Free" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
1985 XT 250 timing marks Google Search
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Posted on May 24, 2017

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Posted on Jan 02, 2017

rockitman187
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SOURCE: Honda CRF 100 timing

Turn the motor over clockwise until the punch mark on the gear lines up with the arrow mark on the side case. Check to be sure that the cam lobes are facing to the rear of the bike, if they are pointing toward the front keep going until they face back and the punch mark aligns up with the mark on the case.ab798e0.jpg

Check the cam gear to make sure the two marks on the gear are level with the surface of the head.
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Posted on Jan 29, 2009

Darkoverlord
  • 11 Answers

SOURCE: 85 suzuki 125 4 wheeler that is out of time how do i time it

With your piston @ TDC (top dead centre)(check the timing marks) all of your cam lobes should be pointing as far away from the valves (or rockers) as possible. Alternatively, the cam lobes can all be very close to opening the valves. This is called "rocking." Once you have set it up like this, you should turn the crank in the direction of rotation to check that none of the valves touch the piston. Keep turning the crank to check the valve are opening and closing at the right times, ie "****, squeeze, bang, blow"

Posted on Jul 19, 2009

  • 3567 Answers

SOURCE: timing chain 110 hymoto pit bike

Put the piston at TDC (Top Dead Center) by lining up the timing marks on the flywheel and stator. Put the cylinder head back together with the cam installed so the high points of the cam lobes are pointing kind of downward. Pull the cam chain taught on the front side of the engine. Put the chain on the cam gear such that, when bolted to the cam, the index mark or marks are in the proper position.

The proper position depends on what markings are on the cam. Some bikes have a single mark; an arrow, a straight line or an "O". The mark should line up with the center-line of the crankshaft. If the cam has two marks opposite each other, the lines should be parallel with the gasket surface. You will need to rotate the unbolted cam left or right just a bit in order to match up the bolt holes to the gear holes.

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Posted on Aug 20, 2009

  • 3567 Answers

SOURCE: im replacing my piston and rings and i took the

Below is a generic diagram. If only one mark is present it points upward and in line with the crankshaft center line. If two marks are present they line up with the gasket surface of the cylinder head. The piston should be on TDC and the cam lobes should be pointing downward. Be sure the chain is on the crank sprocket, not wedged between the sprocket and the balance weights. Also be sure that the chain is taught on the front side of the engine. Any slack should be at the back side of the cylinder so the chain tensioner can work properly.
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Posted on Aug 23, 2009

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