I've owned a 21 Anniversary model for quite a few years. Bought it used and in excellent condition but now the replacement engine (TWM QPVS11) that it came with is starting to give in. Lots of smoke, lack of power. I'm considering just getting another newer used Greenfield but perhaps replacing the motor is cheaper and it is something I would be able to do.
The question is: what do I replace it with? What are my options here that would slot straight in? The current TWM needed one or two parts to be slightly modified, but nothing serious. Do I have to buy a B&S? Are there cheaper options?
How would I find out about the bolt-hole distances and configuration other than measuring it up myself? Are they standard / is there a standard?
Thanks for your help,
Oli
