Hello all.   Brother just picked up a Brat.    There are some carb issues ... so I'm going to check for vacuum leaks.  What size vacuum hoses do I need to buy?     I know quarter inch (approx. 6mm) ... but what other sizes should I buy for possible replacement?    Thanks for the input.

I'm thinking 3/16th

I picked up some 4, 5 and 6mm  at Orielleys.   I'll let you all know what the results are. 

Some of those hoses have "orifice" pellets in them to limit vacuum to certain items.

 

Make sure you fish them out of the old lines and reinsert in the new ones.

Thanks for the heads up.   I'll be working on it today.  I sent you a pm a few days ago.