Great idea and wonderful work so far Steve. I'm relatively new to all this information so your posts are extremely helpful to me. The video on 4 stroking was excellent as I would have noticed the difference in sound but would have no idea what was happening or why. Thanks a lot for you efforts.
Extremely useful Steve, your doing a excellent job on HT information.
When I recived my new engine I had to disassemble the carb for inspection and it passed. Haha! After re-assembly it worked.
Jim
From what I've read, pulling the carby apart is a very good idea. Some guys have found the main jet and/or needle jet loose in the bottom of the float bowl fresh from the factory.
if its black but not cause its rich, the plug is too cold, right? and hotter plug has less ceramic so it heats up more, burning off excess oil/carbon..which is the black....
keeping in mind the engines tuned...
yes?
ok...my actual addition here was
PORT TIMING
Ex : 140 degrees. open
In : 106 degrees. open
piston induction : 120 degrees? not very important anyway.
EX port area : approx 260mm2
and a good program for tuned pipes that ive used a few times on other engines...
measurements are as close as i could measure, and are really only a guide... it will only effect the pipes performance by a few hundred rpm either way...