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Post by gmichael on Aug 31, 2016 23:35:06 GMT -5
I was doing some work to my '74 tx750 today, and noticed that the pistons are at the bottom of their stroke when the TDC marks are lined up on the rotor. Considering that the rotor can only go on one way, I'm not sure how this can be? Is there something I am missing? When the pistons are at the top of their stroke, the single "RT" mark on the rotor is aligned with indicator, but their are no other timing marks to set the points to. Thoughts?
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Post by gmichael on Sept 5, 2016 13:31:08 GMT -5
After looking at pictures of flywheels, I am not sure that I actually have a TX750 flywheel. My flywheel looks just just like images of a XS400 flywheel, which looks almost identical to a TX750, but the keyway goes all the way thought the threads and the outer ring on the back side (where the starter clutch mounts) is not continuous. It is hard to tell, but it appears as thought the XS400 flywheels have TDC markings opposite that of a TX750 as well. Can anyone confirm where the TDC markings are in relation to the keyway on a TX750 flywheel? As in, if the keyway is facing up, do the TDC marks also face up?
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Post by jayteenz on Sept 7, 2016 4:04:46 GMT -5
Hi gmichael
I have had a look at a spare flywheel I have and the keyway is to the left of the 2F mark by about 20 degrees. The 2F mark is 180 degrees opposite the TDC and (and F and T) marks.
Hope that helps.
JT
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Post by gmichael on Sept 7, 2016 10:17:09 GMT -5
Thanks for the reply. That confirms my suspicions of having the wrong flywheel on my TX750. My TDC mark is on the same side of the flywheel as the keyway, which is 180 degrees off of where it is supposed to be.
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Post by Pardee on Nov 28, 2016 7:26:38 GMT -5
Thank you for the post.
I've been fighting a timing issue for a few years now.
Now that you mention it, someone may have sold me a flywheel for my TX that was incorrect and I missed the small details.
It's my own fault for not inspecting and comparing before installing.
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