I did a search but did not find anything. Can anyone give me some advice on when is a good time to change the exhaust on an '07 919?
This fuel injection stuff is new to me and I want to break the bike in properly but I also know I want to change the mufflers. I already have a set of Jardine cans that I got a great deal on but I am not sure how the bike "learns". If I should put them on right away so it adjusts to them or let the bike break in under stock conditions then change them?
Anyone got opinions? Thanks!
If you have more than 20 miles on the bike, it's broke in! Rings seat fast... you have maybe 20 miles at longest to do this and correctly. After that, the 600 miles that the OEM recommends is more of a shake down period. They want you going slow in case anything is loose and falls off
If you have any mechanical aptitude, and you are sure it's tight and performing relatively solid, you are done after 20 miles. Note, you really should change the oil after the first 20 miles. I always do it again at the 500 - 600 mile mark as recommended by the OEM so they can't say I didn't do it and deny my warranty. You guys that pansy around the throttle for the first 20 miles are not doing your motor any good. And doing for 600 miles is a waste of time. 20 miles maybe, rings seat, that's it! The idea is to load them under acceleration and deceleration to achieve the tightest seal in the cylinder bore as possible before the cross hatchings have worn off and no further seating will occur. I am not saying flog on the motor. But you need to get a good load on it and build up pressures and forces in both directions.
Ok, here come the flames.
BTW, your FI uses mapping and does not learn like in modern cars. The FI continues to use the same mapping regardless of exhaust changes, thats why there is the Power Commander, to change the map to accommodate your intake & exhaust modifications.