Re: It begins....again!
just thinking about breaking the bike in after rebuild, and think I'll go the radical route, i.e. use 10-50mineral oil and change it after the first 20 miles, and continue with that oil for another 1000miles or so, then switch to synthetic. I'll use 3/4 throttle now and then, and full engine braking, keeping to the less-populated roads where I can give it bursts of power, keeping the maximum revs to at least 1500rpm under the limit. After the first 20 miles and an oil change, gradually increase the duration and power of the bursts over the next 500 miles , then it should be job done. Opinions?
One other thing, 954 is 2.7% bigger than 929 (so sucks 2.7% more air requiring 2.7% more fuel, right? (there is no airflow measurement on the 929 PGM-FI system, and mine has no O2 sensor and no catalyst, so the system will not register that there is more air flowing, it still relies mainly on throttle position to calculate airflow)) . Mine is fitted with a power commander, so I'm tempted to increase the power commander map numbers by 2-3 across the whole rev range, based on what I saw post by Dynojet research on another site:
Join Date: Apr 2009
Our values in the table represent a percentage of fuel change relative to injector pulse width. A value of 0 means that the bike will run exactly as stock, no power commander. On a normal bike with 4 injectors if you were to put a value of 10 in the cell it would run about 10% richer. A value of -10 would be 10% leaner than stock. Now you have an 8 injector bike so this goes out the window. It is still 10% richer or leaner but NOT on the overall fuel curve, just on that set of injectors.
Basically, don't worry about the science behind it just know that a negative value is taking fuel away from the stock curve and a positive is adding fuel on top of the stock fuel curve.
If you are using a map that is close to your setup and you have to change the values more than 15 then something is going on. Also if the bike was running so lean as to cause engine damage it would be running horrible and hopefully you would stop riding the bike in that state. If it pulls clean to redline with no stumbles or hiccups you are in the ballpark.
More fuel does NOT mean more power. There are many bikes out there that come way too rich from the factory and we lean them out across the board to gain power.
Hope this helps.