Question about 1989 Suzuki GSX-R 750 RK
The oil can be drained removing the NEAS system valves ( 2 allen bolts ).
System contains 456 cc ( 15.4oz.) oil in each leg.
the oil-level measured from the top of the COMPRESSED leg is 107mm.
- have an oil-suction pump
- Make a tube with a stopper at 130mmfrom the end.
Drill a little hole ( 3mm ) at 107mm (4.21in) of the stopper.
More oil will tighten the suspension, less will soften it a bit.
Oil type: SAE15
Hope this helps
Posted on Apr 02, 2009
Your going to have to slide each fork out theres a large nut ontop undo that but there is a spring in there just flip it upside down dump the fluid out (not the spring you can take it out but dont just let fall)then put back together with new fluid
Posted on Jul 15, 2009
a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
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Posted on Jan 02, 2017
if you go to CARL SALTERS MANUALS you will be able too down load all the service manuals for the GSXR600 1999 for free and it will give you exact messurements plus diagrams it has absolutely everything that you will ever need or want to know wish you the best with your bike have a 750 gixxer myself what a machine take care bud
Posted on Mar 01, 2010
There is 644 ml of oil in each leg, Suzuki say L01 type oil. 5W oil should be the equivalent, if you want stiffer suspension us 10w, it really depends on you. Most are happy with 5W oil
Posted on Apr 13, 2010
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