Thread: Piston wash question
10-28-2008, 05:17 PM #1
Piston wash question
How long does it take to form on the piston after a carb adjustment?
10-28-2008, 07:00 PM #2
10-28-2008, 07:25 PM #3
Depends...but usually within the first tank, you can get an pretty good read on what is happening. I have checked after 20-30 minutes of running and get an "indication" of what is taking place. You can sometimes see if you are too lean by the wash or lack of it...if the top of that piston is black/sooty and no port wash happening..you have a problem.
Best thing to do is to take pictures and let the engine doctors on board diagnose it for you.
10-28-2008, 08:28 PM #4
Thanks Wavereater and of course you Pistonwash. I just recently rebuilt my motor so I want to get in the ballpark and fine tune it later. My only problem is I ride year round. Even in some temps below 32 degrees. So I may have to have summer setting and winter settings. I don't mind running it rich. I'm not a total speed freak but do like to go fast I plan on pulling the head this weekend.
Right now I am running 6940rpms on a ported 1300 with a concord 14/24. Was running 7280 with the 13/19 with out touching the carbs. Switch to the 14/24 and dropped to 6830 and started playing with the carbs and got some rpms back. Just want to go slow and not burn up this motor.
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