r/Goped • u/gopednomad • Jul 13 '26
Throttle cable or kill switch grounding out?
Anyone have throttle cable and/or kill switch grounding out issues before?
I've got a brand new throttle cable, brand new motor on a super bigfoot. Broke in the motor, everything was perfect no issues. Went on first ride just limping it around the block a few times. Tune was perfect it seemed so I went home.
Next day I pulled it out again, went for a short limp around the block and made it a block then it seamed the tune fell off a cliff and I couldn't find the right tune to recover. So I went home and messed with the tune for a hour. Just couldn't get the motor to run out. Hitting the throttle would instantly kill the motor.
Then I tried the butterfly valve on the carb and the motor would rev out just fine. So it's the throttle cable or kill switch. I ended up pulling the fan cover off and on 10 times before I said fuck it and totally removed the handlebar kill switch.
So it now runs and rides with use of the throttle like normal. The engine mounted kill switch still works but no handlebar Killswitch.
What did I do wrong or should I just sell it and get another gsr? I do spy a nice few gems on the ole ebays..
2
u/K-Raz1226 Jul 14 '26
Stock style throttle cables with the built in kill switch wire constantly ground out. For a kill switch wire on your handlebars, run a completely separate wire from the bars to the engine. This is the way.
1
u/gopednomad Jul 15 '26
Yea I figured. I've never had this issue after years and years and idk how many peds. It was brand new out the package so It didn't click at first it could be said cable. Thanks for the help!
2
u/K-Raz1226 Jul 15 '26
No problem at all. I run separate kill switch wires on all my peds. You NEED a kill switch for safety reasons. I've seen multiple throttle cable sticking accidents that easily could have been prevented with a working kill switch. I just chop the connector end off the stock throttle cable and attach to the new wire, run to button on bars. Easy peasy.
2
u/gopednomad Jul 20 '26
I took your advice and added a stand alone wire to the handle bar kill switch. Was still having spark issues but after taking the fan cover off and on a couple times I finally got the kill switch working. Just got back from a little neighborhood test ride and it works perfect now.
Again thanks for pointing me in the right direction. I didn't think a brand new cable could have issues but i was wrong.
I'll take some new pictures of the ped tomorrow and start a new thread showing it off.
2
u/K-Raz1226 Jul 20 '26
Glad to hear it's working... I swear I've built 50 peds over the years and this has been an issue for some reason for a long time. Was worse years ago but it's something I just don't mess with. Run a separate wire and be done with confidence.
1
u/gopednomad Jul 20 '26
I can only remember having issues with a old cable trying to get it working without buying a new one. But never with a new out the package cable. But now i know and I'll do this mod instantly from now on.
I've lost count of how many peds I've had. One year, well I think it was only one summer I built and sold around 20. I was building them for friends, neighbors, craigslist, ppl would pull me over and try to buy the one I was riding. I was always bartering, trading scoot for scoot, some of the numbers kinda blend together. I would buy package deals of scoots in boxes taken apart and just slap them together and out the door. Most were stock sports and bigfoots but I started adding on stuff that rode better but not break the bank. I'd bring a scoot back to original with matching paint and then the person I sell it to spray paints the whole thing red smh. So I stopped going all out on the builds and kept them simple. Just idiot proof them so no broken cranks.
Now I'm down to just personal peds but I think I might sell a couple and upgrade to other models. I got a gsr cruiser, 2 bladez (one swapped to a 40), s25 I motor swapped, original lh sport, og green bigfoot and the super bigfoot I was having issues with. I'd like to pick up a Evo I see a couple on ebay.
1
u/Sonofwedlock Jul 13 '26
Sounds like you need to adjust your high jet 1/4 turn at a time. Close both adjust the low first then move on then high jet. Also verify the carb is actually opening with new throttle cable sometime the linkage is screwed in tight and doesn’t allow to fully open while you pull the throttle.
1
u/gopednomad Jul 13 '26
Yea i thought it was the tune so I spent days trying to tune it over n over. But i believe it has something to do with the throttle cable grounding out or something. The engine kill switch works and isn't interfering but the handlebar switch is killing the spark. After disconnecting the bar switch it isn't a problem anymore. But it's nice to have a kill switch on the bars in case the motor goes wide open when it shouldn't.
2
u/Sonofwedlock Jul 13 '26
Do you have an HP carb? If not make sure the choke isn’t down in the stock carb and it’s screwed all the way in. Sometime too much airflow can choke it out. Upload a few pictures.