I searched for an answer to my problem within wiki and forum posts, but no luck
My Vespa cranks, but doesn't start.
Fuel pump works, I hear the sound when I turn ignition, and the fuel is in the hose supplying injection system, so it is pressurized. I cleaned old injector with injection system cleaning fluid and compressed air, and it fired - I went for a 500meter ride and the engine went down and since then cannot start. Thinking the problem might be with faulty injector, I ordered new one (looks like it squirts fuel fine - see video: https://photos.app.goo.gl/fXyazfVvHo8U4Lyy6 ). Today it arrived, replaced it and the problem remains unsolved. Same story. Cranks, but doesn't start (see video: https://photos.app.goo.gl/TT8ffuxiWTTvhmrH8 ). Sparkplug is replaced, the spark is good (see video: https://photos.app.goo.gl/JZ8w6KhCnJLD5sDj7 ). Immobiliser seems to be coded with the key.
Killswitch checked and working ok.
Air filter cleaned.
ABS light is blinking all the time when key is in ignition position - I cannot remember how was it before problems started, nor can't find an answer here if it is normal (see video: https://photos.app.goo.gl/6RhZgHagSYZAr6ATA ).
When I hold brake lever, push the start button, release the start button, release brake lever it stops cranking, but when I immediately hold brake lever again - it starts cranking even if the start button wasn't pressed again.... (see video: https://photos.app.goo.gl/n5YFU8h3weNGwD6P9 ) Not sure if it is something specific to my problem or is it normal behavior
What can be the reason? I am outta ideas 🤷♂️ I appreciate any help from Vespa Gurus here! Thanks in advance.
⚠️ Last edited by jakubradecki on UTC; edited 4 times