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Hi Guys can somebody please tell if the following numbers on 1098 cam shafts are vertical or horizontal cam shafts?

VS-7M3
VA-7M3

I ordered some from the internet and was told they were the wrong ones.
Any clarification would be much appreciated.

thank you mark
 

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The 1098 was originally supplied with 7M3 cams, which we replaced with 7M4 cams due to the timing tool slots being machined incorrectly.* They are otherwise the same, and the 7M3 are fine if you check and set the timing with a degree wheel, etc.

The slots in the ends of the cams changed with the 1198.* Previously, the T shaped slots had the bottom leg pointing toward the rocker cover at TDC firing of the respective cylinder.* For example, on the vertical cylinder this gives an upside down T at TDC firing.* From 1198 onward, the legs both point toward the rocker cover at horizontal TDC firing, or when you’re meant to use the tools to line them all up.* This way, the one locking tool can be used for both cylinders.* Previously the vertical cylinder legs would be pointing to half past 4 with the engine at horizontal TDC firing.* When you rotated the engine 270 degrees (counter clockwise on the timing shaft and cams) the timing shaft and cams would turn 135 degrees, or from 4:30 up to 12 o’clock.* So, before you pull the belts off, take note.


1098/1198 cam id #

2008 1098R oa/va/os/vs/ -8R3*
2009 1198S oa/va/os/vs/ -90*
2009 1098RS oa/va/os/vs/ -9R1*
2010 1198R oa/va/os/vs/ -9R


From brad's web site
 
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