Sanity check

Murray Mint · 10-05-2019, 08:16 PM

Hi guys, having researched the subject and while I’ve got the carbs off I thought id check the valve clearances. I’ve used the screwdriver pushing down on the closing rocker to measure the closing clearance as per the Ducati Tech video.

Would someone be so kind to sanity check my findings.

Valve clearances. 1993 900

Vertical cylinder
In opener 0.14mm. 0.02 over spec
In closer 0.29mm
Difference 0.15mm. 0.10 over spec

Ex opener 0.13mm. Within tolerance
Ex closer 0.18mm
Difference 0.05mm. Within tolerance

Horizontal cylinder
In opener 0.13mm. 0.01 over spec
In closer 0.13mm
Difference 0.00mm. Too tight, needs to be 0.03 - 0.05

Ex opener 0.15mm. Within tolerance
Ex closer 0.21mm
Difference 0.06mm. 0.01 over spec

10-05-2019, 08:16 PM	#1
Murray Mint Member Join Date: Jul 2009 Location: Crawley Bike: M900 Posts: 106	Sanity check Hi guys, having researched the subject and while I’ve got the carbs off I thought id check the valve clearances. I’ve used the screwdriver pushing down on the closing rocker to measure the closing clearance as per the Ducati Tech video. Would someone be so kind to sanity check my findings. Valve clearances. 1993 900 Vertical cylinder In opener 0.14mm. 0.02 over spec In closer 0.29mm Difference 0.15mm. 0.10 over spec Ex opener 0.13mm. Within tolerance Ex closer 0.18mm Difference 0.05mm. Within tolerance Horizontal cylinder In opener 0.13mm. 0.01 over spec In closer 0.13mm Difference 0.00mm. Too tight, needs to be 0.03 - 0.05 Ex opener 0.15mm. Within tolerance Ex closer 0.21mm Difference 0.06mm. 0.01 over spec