Hello and thank god you're all here. I've been a lifetime MC owner/rider but I finally became a BMW owner when a 1998 K1200RS (98k miles) came up as a storage locker refugee and I went and got her. Varnish gas had me cleaning the tank and replacing the fuel pump and filter. New plugs and battery and she fired up. What I need immediate help with is a low RPM throttle issue. If I rev the bike to 2000rpm and hold there, the rpms dip to 1500 and then back up to 2000, over and over, while I hold the throttle steady. This translates while I'm riding to not being able to have low throttle action, when I try to feather in some throttle to start rolling, it dies back to idle so I have to rev the bike high to get going.
A friend said this was a faulty TPS, and I have tried the TPS reset (key off, On, twist WOT three times, key off) but no change in my issue. I have also disconnected the battery and tried it.
So I wonder if this TPS replacement sounds right to the collected experience here. I tried a search here for TPS and nothing came back. I'd appreciate a work flow for solving this if anyone has one. I am not afraid to do most of the work on the bike, but if something requires the work of a master I'll take it in.
I have changed the oil, trans,and final drive, front brake fluid. I can't find a source for a rear brake line, seems sets are all the rage, so I'll have that made at a shop here and will flush the rear brake lines with fresh fluid. Also waiting on speedbleeders to do the clutch line flush. And plan on flushing coolant and front forks and steering dampener to make the bike as fresh as I can.
Markus
1998 K1200RS (as yet unnamed because bumblebee is to easy)
A friend said this was a faulty TPS, and I have tried the TPS reset (key off, On, twist WOT three times, key off) but no change in my issue. I have also disconnected the battery and tried it.
So I wonder if this TPS replacement sounds right to the collected experience here. I tried a search here for TPS and nothing came back. I'd appreciate a work flow for solving this if anyone has one. I am not afraid to do most of the work on the bike, but if something requires the work of a master I'll take it in.
I have changed the oil, trans,and final drive, front brake fluid. I can't find a source for a rear brake line, seems sets are all the rage, so I'll have that made at a shop here and will flush the rear brake lines with fresh fluid. Also waiting on speedbleeders to do the clutch line flush. And plan on flushing coolant and front forks and steering dampener to make the bike as fresh as I can.
Markus
1998 K1200RS (as yet unnamed because bumblebee is to easy)