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I'm trying to adjust the valves on my 2018 Rubicon. Turned out to be a nightmare. The Honda service manual says to remove the crankshaft end cover and turn the crankshaft "clockwise". All engines turn both clockwise and counterclockwise. CLOCKWISE FROM FRONT = COUNTERCLOCKWISE FROM REAR. You have to specify front or rear or it doesn't mean anything.
I know over 90% of engines turn clockwise from front, but I don't want to make an assumption. Looking at picture of a recoil starter, it seems that this is one of those very rare engines that turn counterclockwise from the front (?).
So I tried to adjust them by turning it clockwise from rear (counter-clockwise from front) watching valve position. I adjusted the intake when the exhaust valve was depressed, it was .002" loose. Then I try to adjust the exhaust with the intake depressed and the exhaust valve is tight, no slack at all. I loosened it up a half turn and it's still tight. It couldn't have been that tight, it ran perfectly when I rode it in the shop.
Reading further, it seems this engine has one of those automatic decompression devices like my 2020 P1K has, which makes it even more important to turn it the right direction.
Do I have to put the engine back together and start it to get the decompression reset or something? Anyone know for sure which rotation this engine turns?
 

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You’re looking for the sequence when the Piston is at TDC ( mark on flywheel) just after intake valves close and before exhaust valve opens. This is the compression stroke and both valves will be at rest. set b

The piston will also be at TDC on the exhaust stroke—and you’ll see the timing mark again)—don’t set them here.
 

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You’re looking for the sequence when the Piston is at TDC ( mark on flywheel) just after intake valves close and before exhaust valve opens. This is the compression stroke and both valves will be at rest. set b

The piston will also be at TDC on the exhaust stroke—and you’ll see the timing mark again)—don’t set them here.
Is that same for trx 450er
 
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