if anyone finds the following to be unreliable, untrue, disingenuous or otherwise detrimental to watercraft please DO respond accordingly.
having recently needed a "degree wheel" to set Rotary Valve (RV) timing, i realized i could create my own. using computer aided drafting i drew a 5.5" circle to fit the diameter of the case, drew another circle from the same center at 1.25" in diameter for the shaft hole, drew a horizontal line from the center out to the right for ZERO, then copies of that line were rotated from the center of the circle to +111 degrees, + 119 degrees, -61 degrees & -69 degrees based on TABLE 3 pages 280 & 281 in Clymer Sea-Doo water vehicle shop manual 1988-1996 #W809-3 for a 91 "other than SP model". i did the same for 92 GTX & XP models.
i printed these out on "VELLUM" paper that's see-thru. Cut out along the outer edge, cut out center shaft hole, then laminated them. Cut out the laminated "disks" i created and badda-bing badda-bang, i got me sum' measurin' DO-HICKEYS!
Anyone can make these using tracing paper, draw the circle a little shy of the case opening, a circle for the shaft, use a protractor for all your angles, cut it out, then laminate and cut out again. heck, you don't even need to laminate them because the number of shaft splines (at least on my 91 587) means that if i'm not in the right location with the RV, it'll be out by some 15 degrees or so. kinda hard to be wrong ain't it?
I'd be happy to create these for anyone who requests (provided it don't get crazy) so let me know.
HAPPY MOTORING ...................
having recently needed a "degree wheel" to set Rotary Valve (RV) timing, i realized i could create my own. using computer aided drafting i drew a 5.5" circle to fit the diameter of the case, drew another circle from the same center at 1.25" in diameter for the shaft hole, drew a horizontal line from the center out to the right for ZERO, then copies of that line were rotated from the center of the circle to +111 degrees, + 119 degrees, -61 degrees & -69 degrees based on TABLE 3 pages 280 & 281 in Clymer Sea-Doo water vehicle shop manual 1988-1996 #W809-3 for a 91 "other than SP model". i did the same for 92 GTX & XP models.
i printed these out on "VELLUM" paper that's see-thru. Cut out along the outer edge, cut out center shaft hole, then laminated them. Cut out the laminated "disks" i created and badda-bing badda-bang, i got me sum' measurin' DO-HICKEYS!
Anyone can make these using tracing paper, draw the circle a little shy of the case opening, a circle for the shaft, use a protractor for all your angles, cut it out, then laminate and cut out again. heck, you don't even need to laminate them because the number of shaft splines (at least on my 91 587) means that if i'm not in the right location with the RV, it'll be out by some 15 degrees or so. kinda hard to be wrong ain't it?
I'd be happy to create these for anyone who requests (provided it don't get crazy) so let me know.
HAPPY MOTORING ...................
