I installed my Sunstar 17 Tooth Front Sprocket today. I bought it from Dale for about $25 delivered. Unfortunately it's raining so no testing until it's dry. Because a few of you asked, here is the 20 photo blow by blow.
#1 - Clamp the clutch
#2 - Remove the side cover
#3 - Remove the shift linkage and speed sensor sender
#4 - Loosen the voltage regulator top two screws - DO NOT REMOVE
#5 - Remove the clutch thingy....
#6 - Remove the sprocket cover plate and screws.
#7 - Jam the rear wheel from the top so you don't torque against the transmission.
#8 - Remove the sprocket speed sensor
#9 - Remove the Front Sprocket - Good Lord this was tight!!!!
#10 - Loosen the rear wheel and move it forward
#11 - Remove the washer and sprocket
#12 - Re-install new sprocket and washer
#13 - Jam the rear wheel from the bottom this time and torque the sprocket - also remove the chain guard for a good look at things while you adjust the chain later.
#14 - Re-install the speed sensor
#15 - Re-install the voltage regulator bolts and tighten the top two. As well, re-install all the side plate and clutch thingy bolts.
#16 - Re-install the gear shift linkage and the speed sensor sender.
#17 - Release the clutch clamp
#18 - Re-install the side cover and clean it up.
#19 - Adjust the chain for 1" slack and torque the rear wheel to 75 ft lbs (actually 72.5). Check it on the side stand - although it does not seem different on the center stand
#20 - Re-install the chain guard. Then go test it out!!!
All in all - very straight forward and took maybe an hour. Only headache was popping the sprocket free. I did not have an impact wrench would have helped a bit. I'm sure my back will be fine after a few visits to the chiropractor!!!!