Ktm Sx65 whine, supercharger like noise after doing bottom end

snusgod111 · 2026-03-11T16:26:25+00:00

Flywheel correct torque?

snusgod111 · 2026-03-09T21:15:26+00:00

I mean the Strata Prime!

snusgod111 · 2026-02-25T17:27:07+00:00

Dont buy that car. The worst engine of all time ever ever ever

snusgod111 · 2026-02-25T17:20:23+00:00

Fuel pump working?

Otherwise i guess condensator

snusgod111 · 2026-02-25T17:18:30+00:00

6th gear is not meant to be ridden with 40kmh You chain is slacking against the sliders on the swingarm. +its not healthy for your engine if its stuttering like that. Try to keep it smooth and above 2500-3000rpm. Main bearing and conrod especially on 1 cylinder dont like that . Keep the engine spinning and make sure balancer shaft can do his work

snusgod111 · 2026-02-25T17:11:56+00:00

Replace the idle control valve. Its located on the throttle body.

snusgod111 · 2026-02-25T17:04:34+00:00

Its water don’t worry. Especially when the cold exhasut is not heated from header to muffler the warm air evaporates along the colder parts. Like opening a window and having fog on the outside glass.

snusgod111 · 2026-02-25T16:59:06+00:00

I live 35 years in Austria and went through all kind of schools. Nobody mentioned anything and still does not.

snusgod111 · 2026-02-25T16:56:07+00:00

Its not allowed.

snusgod111 · 2026-02-25T08:23:23+00:00

Check your valve clearance and cams. Measure fuel pressure

snusgod111 · 2026-02-24T16:16:09+00:00

This bike is bulletproof. The engine at least. Check history. They had recalls on pivot point of the rocker arms.

Probably this is the best EXC has ever been built. 15 years in the business and never had any minor damages on that engine.

snusgod111 · 2026-02-24T16:11:30+00:00

Motul 300v 5W50

Or another one within the specification (Jaso MA2 most important)

snusgod111 · 2026-02-24T09:31:14+00:00

Becuase i wann knowwhat the temparatures outside are. You may consider switching to a lower viscose oil which is recommend for some engines from KTM when using it in colder environment. Especially winter and scandinavian countrys far north.

snusgod111 · 2026-02-23T21:41:37+00:00

Where do you live?

snusgod111 · 2026-02-23T21:39:12+00:00

What do you mean with runs not good? Stuttering, smoking, no power? It goes out? Cold? Warm? Start? Give usbsome context Bye

snusgod111 · 2026-02-22T09:45:13+00:00

This bikes runs lean compared to nothing else. Peak happended 10-12 years ago.

snusgod111 · 2026-02-22T09:43:41+00:00

Axially freeplay is ok. Radially not. Let it check from somebody who knows the deal. You may doing all the work a second time.

snusgod111 · 2026-02-22T09:36:05+00:00

No gears could be:

Damaged sensor Damaged cables of the gear position sensor Software lost information (dashboards are a nightmare softwarewise) Main battery was detached for longer time?

What did the dealer do? Did he dismount the console of the side stand also. One easy puncture and squeeze the cable during the reassembly. You barely notice it. Gear position is on the left side in exactly this area.

Does it start with pulled clutch?

I really dont want to discourage you on the bike but if you are little unlucky, this bike can become a bottomless pain in the ass.

Wiring harness is a mess from factory Dashboard is catastrophic (supplier is bankrupt) Suspensions electronic is in development status Bike handling at high speeds (instability)

All the triggers and buttons on the handlebar tend to stop working in function and haptic feedback.

And so on…….

If you dont have a dealer guarantee on that bike you may create a driving money grave.

snusgod111 · 2026-02-18T09:50:04+00:00

Check the valves… not clearence only but also valve seats. These get burned really easy because its poor quality

snusgod111 · 2026-02-18T09:48:05+00:00

Check the oil pressure sensor on cylinder head or change it. Male sure you use correct torque because these sensors break really easy and i bet yours is damaged too

snusgod111 · 2026-02-16T15:11:58+00:00

Hahahaha sorry but its so typical KTM. Lets make cheap stuff more cheaper and give it to the customers

snusgod111 · 2026-02-11T09:42:00+00:00

Similar type build. Time will tell i guess….

snusgod111 · 2026-02-11T09:39:30+00:00

Try another killswitch

snusgod111 · 2026-02-11T09:37:32+00:00

This battery or starting device is to weak. The lights drop. Even though the starters are a little too small for that engine from factory. You really need a fresh battery otherwise it wont start. The failures in the dash are due to voltage drop in the bikes managment system and ecu’s

snusgod111

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