Hi I’ve got a stock motor with a tommey b1 pipe, air box lid off, stock pilot and clip in the middle and I cannot get the jetting right, first I tried the 310 they recommend and on plug chop that was lean I have now worked my way up to a 370 and it is still on the lean side I have leak tested and it held 6psi for 10 mins with no leaks I have also checked the exhaust for leaks and found none also the air filter is all sealed well, the quad rides perfect with no issues just don’t want to do any damage by running lean, anybody have any suggestions? will be much appreciated thanks