I ordered the tractor starter that says it fits the taskmaster and the jimna 20 to 25 HP bengfang motor , I had the same issue that everybody else had the starter would not fit in the hole it should have had the right amount of teeth so I ground the whole larger (the bell housing hole) to receive the starter it works perfect I used a finger diamond bit on a DeWalt grinder it made quick work of it it took about an hour to install the starter and have it running, I purchased my starter off of eBay it was about $125 with free shipping if you need a link or more information you can call my number at 541-576-9919 my name is Troy this is my cell phone I have a 2006 taskmaster 425 that now runs and will now receive the starter everybody buys that won't fit if mine ever goes out