| Author | Message | ||
     Vagelis46 |
I ride a 1125R with OEM exhaust and OEM ECM ... Based on my experience with the XB12R , I decided to see the influence of a K&N and rerouting the crankcase breather hose on the 1125R..... So I rerouted the breather hose , out from the airbox.... to the right side of the 1125 , next to the exhaust header... I have noticed an increase in the performance , above idle... the bike takes off easier and pulls harder around town..... Also I think the idle increased by around 100rpm ... Before re=routing the breather hose , I had installed a K&N air filter , that made a big improvement in the performance of the 1125..... also more intake noise , which was great.... It just seems now that the engine makes a lot more noise ..... I mean there is a lot of metallic noise from the engine .... maybe it is the increaded idle ..... Does anyone have similar experiences with these mods ?? | ||
| 1313 |
For the period of time that my 1125CR would spew oil through the breather (overfilled) I was always wondering if there was something similar that I could do. Never really did much more than think about it, so I'll be curious about what responses will be posted. What did you do to seal off/close up the opening for the breather hose on the airbox base? 1313 | ||
| Vagelis46 |
1313 , I squeezed a piece of rubber... it looked like it sealed ok....... I think that the "fumes" from the brearher hose is the reason that normaly the rear cylinder has a lower AFV value than the front....... the breather hose is behind the rear cylinder, so the fumes will get sucked by the rear cylinder..... it lookes like the ECM senses the fumes in the rear cylinder and hence the less oxygen available and sends less fuel...... I just read the disgnostic manual for the 1125 and it says that you have to run the engine below 4200rpm, so that the ECM switches to closed loop and reads the variou sensors to adjust the AFVs...... I will do that tomorrow and check the AFVs , before and after...... | ||
| Froggy |
I've ran with the breather not connected at all (screwed up installing airbox), never noticed any difference in noise, fumes, power, etc. I don't believe it makes any difference on the 1125s unlike the XBs | ||
| Vagelis46 |
I went for a ride today , kept the engine below 4200rpm to reset the AFVs, as per manual........ sea level elevation, 25C degrees temperature Ok.... my AFVs : Front = 94 Rear = 100 IAC steps = 101 (it was 175 before the ride) I wish the AFVs were higher..... I have the muffler with cat ...... I wonder if this affect the AFVs | ||
| Stevel |
Rerouting the breather hose will do nothing. Changing the air cleaner to a K&N will make very little change to power output, contrary to advertisement. K&N filters do not clean intake air as well as OEM and they clog easier....beware. AFV in open loop is controlled by the Lamda sensors and is automatic. You have no control. Once open loop switches to closed loop, AFV is controlled by the fuel maps. Race ECMs do not use open loop control. ECMs remapped by the factory and labeled for race only are not race ecms and they do use open loop |
