Modern Vespa

What kind of Dremel bits are you guys using to match casings/carbs/cylinders, etc.?

I use sets of cheap rotary burrs

https://www.amazon.com/gp/product/B07S8WRYH4

and sanding drums to finish

https://www.amazon.com/gp/product/B074ZHP6L6

Plus cutting fluid to keep the bits from loading up and the heat down

https://www.amazon.com/gp/product/B003X3ZKXI

As Chandler said.
Just don't polish you ports too much them must be bit rough.

[quote="chandlerman"]
I use sets of cheap rotary burrs

https://www.amazon.com/gp/product/B07S8WRYH4

Thanks chandlerman! I just ordered me a set! Just what I was looking for!

Hec

Hi All,
Just used the same dremel bits, polishing wheel and a little wet and dry paper to match the case ports to a 210 Malossi Sport on my 2003 PX200e. Worked a treat and really unlocked the extra power.
Running this with a Polini Venturi kit with a larger SIP Airbox on a SI 24 24 (drilled float to MJ @2.5) 135MJ/B3/140, 50/120 idle, SIP fast flow 2 tap, SIP 3 Road exhaust, Uprated clutch, SIP Touren flywheel and modified stator. Iridium 7 NGK plug for short and an 8 for longer road trips.
Really useable in the 50-60Mph range and getting 72 on GPS. The SIP 3 seems to even out the peakiness of the Malossi kit. Have fun.
Cut the front of the sidepanel to let more air in to the Polini filter and modified a yacht electrical cover with a cut through at the top of the fan cowling to act as an air scoop. Temps are down by around 20C.

I'm always glad I can help out!

I also use the same bits, very effective.

Tip : use them at very high speed. It seems not natural if you want to grind just a little but no, not enough speed and the bit will jump and you won't have a precise control.

Perfect, thanks guys!