Bros think that Im running on the reach side still. Solved the hard starting problems but when I put in new plugs I found that the plugs carbon foules & it does mean that im running reach. I adjusted my a/f mix but to no avail. I did turn the screws in and it still has black plugs and I think that my if I turn the screws in more like less than a quarte of a turn it would be completely close. And im also not using any form of air filter. If I will use some kind of air filter will that make my bike run richer & blacken the plugs more? How important is the filter? Im also experiencing loss power when riding in a slight uphill road. What could I do to fix these problems.