Modern Vespa

I have a question to all you MP3 500cc. I just brought my 500 in for a 12,000 miles service and thankfully I redid the service maintenance for another 3 years which will save me a lot of money. The question is this have any of you that had the 12,000 miles checked up had the transmission go bad that they had to put a whole new transmission in it? So every 12,000 miles I have to get the transmission replace.

What do you mean by 'the whole transmission'? Belt and rollers get replaced - that's normal. The variator can get grooves worn in it if the scoot is ridden at WOT continuously - but every 12,000 miles? I think not. Likewise it's possible the clutch can need attention, but it's rare for anything there to need replacing, and not normally a consideration even after 30,000 miles or so.

At the 12,000 mile mark I saw no signs of components needing to be replaced. The belt (which was not worn out but replaced anyhow) and the rollers and variator clips were the only things I replaced.

Now I have a 250 so our service schedules aren't the same, but my point is only regularly scheduled items were replaced.

more clarification needed. what parts did they replace?

Oh did they do the 12k valve adjustment?

When I get the bill I will tell you they replace. It might be that about 3 months ago or so I took the bike up on a gravel road and it couldn't not go any further so I try to increase the throttle on the bike and then it started to smoke so I might of smoked something in the tranny. It must not be bad because the part is only costing me $200.00 to replace the part. The reason it couldn't go up the gravel slope was the back tire was bald. I will post as soon as I get it back.

Tbh I would want to know what they are replacing for that money , at that mileage nothing should be wrong apart from serviceable items , belt rollers etc... As the other chaps have said

Did you burn the clutch ?