Suggest you source a shop/repair manual.'90 model may be difficult - Ebay? Perhaps search I net for "specifications" on this model? Suggest you source a shop/repair manual.'90 model may be difficult - Ebay? Perhaps search I net for "specifications" on this model?
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Pour the specified amount of recommended fork fluid into the fork tube. RECOMMENDED FORK FLUID:
Honda Ultra Cushion Oil 10W or equivalent FORK FLUID CAPACITY:
CBR650F/FA: 505 +- 2.5 cm3
(17.1 +- 0.08 US oz, 17.8 +- 0.09 Imp oz)
CB650F/FA: 482 +- 2.5 cm3
(16.3 +- 0.08 US oz, 17.0 +- 0.09 Imp oz)
Slowly pump the fork tube several times to remove any trapped air from the lower portion of the fork tube.
Compress the fork tube fully and measure the fluid level [1] from the top end of the fork tube. [1] FLUID LEVEL:
CBR650F/FA: 140 mm (5.5 in)
CB650F/FA: 128 mm (5.0 in)
Not brake fluid or Hydraulic oil ( oil weight is the issue) Drain forks ( bottom nipple) , remove top bold , be careful it is pressurized by spring . Use the right tool otherwise will damage bolt and your face.
Front forks should be sealed properly, fork seal should be intact, no water or brake fluid in them. Right amount of fork fluid is imperative along with oil weight specification ( check manual and appropriate oil weight for your bike), wrong oil and amount can otherwise damage your forks.
The gear oil amount is stamped on the clutch cover in ML's, should be 650. The only other fluid you can change is the fork oil, and that capacity is 570 ML each leg. Good luck!
For the 1982 GL1100 the front fork capacity is 9.8 oz. (290 cc) per tube. The recommended fork fluid is Automatic transmission fluid (ATF) or the equivalent 5 wt fork oil. 1980-1981 GL1100 7.0 oz. (220cc) ALL GL1000 5.8-6.1 oz. (170-180 cc)
Well, when you take off the fork make sure you empty it first before anything else then make sure that the fork pressure spring is released before changing the seals. The fork oil amount should be no more than 200 cc or no less than 190 cc
dissassemble forks and replace fork seals.(and oil) becareful forks are under a lot of spring pressue. use a workbench vise to hold fork tubes. you will need the manual for this. plus you will need to know the "proper" amount of fluid to put back into the forks.
1st measure the fluid you take out and make sure you put back the same amount 2nd the fork tube comes out of the bottom half after you unscrew the allen head bolt on the very bottom of the fork
Suggest you source a shop/repair manual.'90 model may be difficult - Ebay? Perhaps search I net for "specifications" on this model?
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