I just bought a shennui 254 and it had a bad fuel injection pump. I bought a new one but it didn’t have install instructions. Also when I did try to set timing and pulled the valve cover I discovered that the rocker arm assembly for the compression release was broken. Any help on finding a replacement is appreciated
if you run the engine disable , remove the compression release as much as you can so nothing binds or falls into valve train and rockers. depending where you live it might not be necessary to you anyway.