1
K100 with high fuel consumption Wed Sep 21, 2022 4:03 am
ouafnico
![ouafnico](https://i.servimg.com/u/f41/11/71/56/74/avatar10.jpg)
Silver member
![Silver member Silver member](https://i.servimg.com/u/f80/11/71/56/74/bmw-2s10.gif)
Hi all,
I'm working on a 1989 K100, which is done and running fine, except the fuel consumption.
Actually I'm about 10L for 100km, is quite high.
I've checked a lot of things, but I don't know what to search now...
- All is brand new on the tank, except the fuel pump
- there is correctly fuel returning on the tank where running
- Pressure is above 2-2.5 bar on the injection ramp
- injector are working, but I didn't test them on a specialist, but filters, seals are new, and they did pass in the ultrasonic tank for some time
- depression tube on the 4th cylinder is new
- the little hose between the block and the air filter is new
- I've visually synchronized the 4 air intakes
- TPS is in good position
- air filter is new
But it seems the bike is always too rich... any idea?
Sorry for the english.
Thanks
I'm working on a 1989 K100, which is done and running fine, except the fuel consumption.
Actually I'm about 10L for 100km, is quite high.
I've checked a lot of things, but I don't know what to search now...
- All is brand new on the tank, except the fuel pump
- there is correctly fuel returning on the tank where running
- Pressure is above 2-2.5 bar on the injection ramp
- injector are working, but I didn't test them on a specialist, but filters, seals are new, and they did pass in the ultrasonic tank for some time
- depression tube on the 4th cylinder is new
- the little hose between the block and the air filter is new
- I've visually synchronized the 4 air intakes
- TPS is in good position
- air filter is new
But it seems the bike is always too rich... any idea?
Sorry for the english.
Thanks