- Are you adjusting this as per the OEM suggestion?
- Just to clarify, I did not say that there is no 290! There is indeed a 290/SP/DP drive that is within this model range. All of these use the: REV Latch, Anchorage Bracket, Small diameter hinge pins, mid-size angular contact bearings, etc.
However, once the REV Latch, Anchorage Bracket, Small diameter hinge pins, mid-size angular contact bearings have been eliminated, this is no longer a 290 style drive.
Note how your cylinders make a direct connection to the "main suspension" fork.
Note the diameter of the hinge pins.
This is the drive that some (in a misnomer fashion), refer to as a "Large Pin" 290...... this is what I said "is no such animal"!
Here is a 290 drive.... doesn't matter whether s/p or DP.
Note the SS Anchorage Bracket that the cylinders would attach to.
This bracket hinges from the suspension fork, and is locked to the suspension fork via a REV Latch unit.
At the top of your transmission will be a tag just AFT of the helmet pin.
See what the tag reads.
It may read DP-C or DP-C1 or _____!
It may also read SP-C or SP-C1 or ____, and may have then been converted to a Duo Prop.
Keep in mind that all lower units in this particular series can be made to interchange.
This is why I suggested that your actual lower unit may not be year correct for the rest of your drive.
In other words, your LOWER unit could be a 280 Duo Prop, a 290 DP, a DP-C or a DP-C1 lower.
Moot point, because of the interchangeability.... as long as the over-all gear ratio is correct.
Hope that helps!
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