Question about 1976 Yamaha XS 650 C

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XS650C Point timing problem

Hello all, right cyl. timing is f mark but the left cyl. is not come to f mark,l was try to adjust wth timing light but its not come to f mark and going to full advance,pls. help

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Hi, Derya 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 zero $ you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
Timing basics
Yamaha XS650 Timing and Tune
Yamaha XS650SE Shop Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-xs-owners-manuals

Posted on Jan 07, 2017

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Posted on Jan 02, 2017

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On 2002 ford explorer,4.6-v-8, when i was changing timing chain guides and adjusters the chains jumped teeth on the crankshaft. The manual says the left camshaft timing mark should be approx. @ 11:oo & the...


Look for some Youtube videos on this repair. If I remember correctly the links on this chain have different color metal for the spots that the cam tooth goes against. When each side is in the proper tooth the right and left colored links will be on the cam mark and the crank mark should be on the timing TDC mark. Sounds like the slack you describe is wrong and a tooth is off because the tensioner is allowing slack.. You need to slip a tooth one way or the other until the tensioner has room to be in a neutral position.

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Hello! I have a 1975 Z1-B 900. I rode it about two weeks ago. It ran fine. About a week later, I went to start it up, and it would only run on two cylinders, No. 1 and 4. I have replaced the spark plugs,...


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2nd -- Set Timing -- Each points set has two mounting screws and pry slots which can be used with strobe light (after slightly loosening the two mounting screws) to align the respective F marks with the timing mark. But if the adjusting plate doesn't travel far enough to allow correct adjustment, then loosen the three mounting plate screws and move the mounting plate.

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How to set points


Remove spark plugs to make engine easier to turn over.
Rotate engine until etched line on points cam lines up with the rubbing block on one of the points.
Set gap to .015"
Rotate engine 180 degrees and repeat.
Reinstall spark plugs.
Hook up timing light to left hand spark plug (cylinder #1)
Start bike and hold throttle about 2500 RPMs.
Shift point breaker plate left/right until timing marks align.
Hook timing light to #2 cylinder.
Run @ 2500 RPM.
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