just in case you want to diy...
tools needed: 12mm socket for side casing bolts,
pistol drill
6.8mm drill
m8 taps (a set of three)
tap wrench
oil
method:
# identify the crankcase casting for the pulse connection(ask if not sure)
# drain oil
# remove side case bolts
# remove side case, taking care not to damage joint or joint face
# rotate the crankshaft so it is as far away from the work area as possible
# stuff a rag into the crankcase to cover the crankshaft and catch the swarf caused by drilling and tapping
# drill the crankcase casting with the 6.8mm drill
# identify the 1st tap (it has the shallowest taper and least threads, so it starts easily in the hole)
# place the 1st tap in tap wrench and dip in oil to make the work easier and a better thread.
# turn the tap wrench clockwise, while applying light downward pressure. The tap will screw itself downwards and into the hole.
# occasionally stop turning and turn it slightly anti clockwise to keep the channels of the tap clean of swarf.
# if the tap goes tight then reverse rotation to free it and continue once again.
# continue tapping the hole until the thread of the tap dissapears inside the hole.
# reverse the direction of turning and remove the tap.
# swap the tap for the final tap and repeat the oiling and tapping.
# remove the tap and try the pulse fitting in the hole. (the pulse fitting should have a tapered thread and come to a stop when it is tight. Do not overtighten the pulse fitting.
# remove the rag carefully from the crankcase, watching for any swarf and removing any cuttings immediately.
# fit the pulse fitting with a threadlock loctite.
# refit side casing and refill with engine oil to the correct level.
job done...
Brian P.
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Anyone tap a GX for me in Hants/Berks? by 'mattman' (27 Feb 2011 @ 21:21)
