Modern Vespa

Hey Guys,
I've been looking for an answer to my starting problem. Guess what? I've solved it!
Here's the deal ... When I first was trying to get my ET4-150 to start, nothing. Then cleaned all contacts and fuses changed. All I got then was a click, and then once in a while, I was able to get the starter to engage.
Long story short ... I took the starter relay out, and then tried to clean the contacts. Put it back together, & now the starter kept going ... even when I turned off everything.
NOW ... I figured that when I tried to start the engine, I would keep a Philips head screw driver close by to hit the relay. Guess what? This was .. and is the problem. The moment I hit the relay. the starter was released from spinning!! Problem solved.

I've read many thoughts on this, but wanted to add ... "the proof is in the pudding!"
Hope this will solve some of your problems! :

Thanks for the info! Surely will come in useful for any searching for answers!