hi grumpy, and deejay, Thanks for your relpys kindly received as i have rebuilt halve a dozen scott bonnars! over the past 2 years I plan on preserving 3 of them a 14 17 and a 20 inch and using 1 to cut lawn with and another 1 as a dedicated grommer i will post a pic of the gromming cylinder tonight i did pick up the honda for halve the cost of a new 1 it was a demo with 10 hours use i gave it clean down the other day i wll have to see how im going to fit a thottle control to the honda from the handle bar anyway stick with it regards steve...