Originally Posted by ksdcr
Well, if you are referring to this comment
For the next owner, what would be needed, to bring this up to complete roadworthyness?
I was being completely sincere. After all, the bike must have been idle for some period of time, with just 8,000 miles in 32 years.
After owning two K75s, I learned that most of the in tank rubber components tend to dissolve, and should be replaced as preventative maintenance.
I thought that some long time K bike owners would share their opinions, on what else should be done.
Quick test…remove the gas cap housing (4 Phillips head screws) and then take the flap off ( three bigger Phillips). Now you can access inside the tank. Either take a long screwdriver or put some deposable gloves on, reach inside the tank, and poke the fuel pump damper ( the black rubber part the fuel pump sits in). If the tank was sitting with any gas over those years, the screwdriver or your finger would come back with a sticky black goo. Those things resolve when exposed to old gas over time. If it’s resolved into a blob of black tar.., the tank comes off, the fuel sender comes out, the fuel lines, the filter, and the pump come out..but it might take some effort to get the pump released from the tar.
With everything out, use a carb cleaner to dissolve the goo and paper towels to clean everything up. You can get a complete fuel pump setup from EME..either size pump should work. If the rubber absorber was a pile of tar and you ran the engine, it won’t take long for the @#%$ to get sucked into the pump and clog it up.
If the bike is now running, but you get a backfire when slowing down, reach behind the rear of the throttle bodies and find the S-shaped rubber vent hose. Squeeze it to see if it has any cracks…air leak. The funny thing is even in the hidden position, it’s easy to replace since the hose comes shaped for that configuration, and after cleaning up both ends and a little shot of WD40, it will pop right on with little drama.
It’s always the little things
