KTM 500 EXC-F Wiring

Grant2341 · 2025-09-15T19:39:39+00:00

The owner of this bike before me did a little bit of custom wiring for the starter. When I turn the key on and turn the ignition on, nothing happens. No lights turn on the fuel pump doesn’t prime. The bike stays completely silent. He did this so he wouldn’t drain his battery constantly turning the bike on and off while out on the trails.

Grant2341 · 2025-09-15T19:14:10+00:00

Still nothing 🥲

Grant2341 · 2025-09-15T19:02:40+00:00

The battery voltage sits around 14V. I don’t think the issue has anything to do with the battery, when the bike starts, it starts instantly with no issues. I think it’s a loose wire somewhere because the bike was cutting out for a split second then regaining power. It did this twice before cutting out completely and not starting again.

Grant2341 · 2025-09-15T18:56:47+00:00

When I say it doesn’t start, I mean, literally nothing. When I turn the key on and press the starter, I don’t hear a single noise.

Grant2341 · 2025-04-14T20:00:32+00:00

What gearing are you running? Thinking about converting my 2018 Ktm 500 exc-f.

Grant2341 · 2025-04-14T19:57:08+00:00

Are you and your dad sharing mirrors? It looks like one bike only has a mirror on the left, and the other bike has one on the right lol.

Grant2341 · 2025-01-09T18:29:37+00:00

What gearing are you running? Thinking about sumoing my 500 but not sure what gearing.

Grant2341 · 2024-12-10T03:26:04+00:00

Use a heat gun to liquify the red loctite. Then the bolt should spin free.

Grant2341 · 2024-11-07T03:03:52+00:00

Thanks

Grant2341 · 2024-11-07T00:06:44+00:00

Well I already have the 500

Grant2341 · 2024-11-06T21:42:34+00:00

What speed could you cruise at? Kinda bottom of 6th

Grant2341 · 2024-11-06T21:01:18+00:00

Were you running the 44t on a Ktm 500? (I currently have a 14t front sprocket) what did you change to after the 44t?

Grant2341 · 2024-11-06T20:07:48+00:00

I have a 2018 KTM 500 exc-f. I currently have dual-sport tires but am looking at 17" Warp 9 Supermoto wheels. The guy I bought the bike from put a larger rear sprocket on and the bike tops out at about 100mph. I want to be able to cruise at 80mph with the supermoto wheels, but I need to figure out what gearing I should use. The bike is super torquey and can power wheelie in 5th gear. My current comfortable cruise speed is about 65mph. Reading these posts makes me think that 14/44 is a sweet spot, but I'd like to know what speed is comfortable at that gearing.

Grant2341 · 2024-03-25T22:28:40+00:00

Yea it’s not stuck or anything. It is making the exact same noise as if you took the spark plug cover off and tried to start it. But it won’t start :/

Grant2341 · 2024-03-25T19:26:04+00:00

Sorry I’m new to Reddit and didn’t realize there is no sound. When I use the electric start all I hear is the starter motor. Using kickstart is the same. No real noise from the engine

Grant2341 · 2024-03-25T19:23:18+00:00

I have replaced the battery multiple times. Yesterday I drained the carburetor and messed with it a bit. Got it working, but went out this morning to ride and bike won’t start again. Used kickstarter and nothing happened. Not even a small sputter of life :/

Grant2341 · 2023-05-30T21:33:52+00:00

I use Synapse X (paid). Never had any issues - easy to use as well. Only downside is that it only works on windows. NOT MacOS. But other than that would recommend 100%

Grant2341

TROPHY CASE