KTM 640 Engine Cuts on Braking & Hills
Hi,
My 2006 KTM 640 Adventure engine has a problem. It starts and runs ok, however on heavy braking with high RPM it backfires like a shotgun. When I brake hard with idle RPM the engine cuts. The engine will also cut on idle when going down hills. Rather annoying when riding hard in traffic.
I've tried troubleshooting various things - fuel pump, choke cable, float height. etc. But can't figure it out. One thing I did notice when playing with the needle height is that the membrane slide in the carb seems to have a bit of forwards and backwards play in it causing wear on the needle - It will need replacing when I can afford it.
Does anyone have any suggestions?
|