Just looking at my own photos, I think I worked out why it takes of so quick. The idler pulley has a lot of rust on it, so rather than the belt slip on the v-pulley as you put the throttle down, it grabs hold and takes off. :-O
Included in the above photos is the brake pad on the v-pulley for the deck as well as other moving parts for the undercarriage, including the basic steering.
I was concerned that I may need to change the belts, but if the pulley assembly was reversed, I believe the belts will actually fit better, especially the cutter belt.
The rusty idler puller has quite a bit of movement in the bearing, but still works okay, so may be a good idea to change it before I sell the mower, but already cost $100 for fuel line, air filter cartridge, pre-filter, air cleaner gasket, oil, plug and a pair of front tyres (yet to be fitted). Still have to weld the 25mm gap on the seat support so the metal meets the chassis.
Overall, it's a fun little machine. Just have to remember it doesn't stop that well, especially when you think the throttle is a brake and you run up the back of your car when you are in forward and not reverse..... hahahaha :-)
