1 K75 Maybe fuel/or spark Mon Oct 03, 2022 2:32 pm
TimK100
active member
Good Day Fellas,
I have a 1988 K75S which has been running terrifically all season. This weekend out for a ride and out of the blue it started losing power a bit. I gave it a little throttle and it really bogged down. Tried to downshift and give it some gas and it was just popping, sputtering, and backfiring. I pulled over and topped off the fuel (it was a little under 1/2 tank) thinking maybe last fill up could have been a little off - even though it was a trusted station). I pulled the plugs to see if they looked fouled or anything unusual, but they seemed ok. When I started it up again it sounded a little off, but ran ok for a mile or two, then started to lose power again and the same popping and bucking. I pulled over and shut it off for about 5 minutes and started again fine for a mile or so, then again same issues. if I pull over and stop it seems to idle fine. It starts up just fine, but I'm not sure where to begin the troubleshooting. You guys have been remarkable with all the tips given for other issues before, and I hope you know how much novice wrenchers like myself appreciate it. Thanks much, Tim
I have a 1988 K75S which has been running terrifically all season. This weekend out for a ride and out of the blue it started losing power a bit. I gave it a little throttle and it really bogged down. Tried to downshift and give it some gas and it was just popping, sputtering, and backfiring. I pulled over and topped off the fuel (it was a little under 1/2 tank) thinking maybe last fill up could have been a little off - even though it was a trusted station). I pulled the plugs to see if they looked fouled or anything unusual, but they seemed ok. When I started it up again it sounded a little off, but ran ok for a mile or two, then started to lose power again and the same popping and bucking. I pulled over and shut it off for about 5 minutes and started again fine for a mile or so, then again same issues. if I pull over and stop it seems to idle fine. It starts up just fine, but I'm not sure where to begin the troubleshooting. You guys have been remarkable with all the tips given for other issues before, and I hope you know how much novice wrenchers like myself appreciate it. Thanks much, Tim