2011 R1200GSA struggling to accelerate at high rpm problem!!
- Thread starter Moonmanzn
- Start date
On looking further into the negative load readings I recorded a log which might explain your problem more.
On full throttle the Air fuel ratio on my bike dropped to 12.5 to 1 (ideal) when it got to 80 mph the AFR started to lean until 95 mph when it was 16.5 to 1.
The fuel pressure was a steady 4 bar and the bike is set to run at 13.8 to 1 so the adaptations should make the open loop richer than stock.
If you are running stock fueling and the pressure dropped a touch it would make sense of your problem as it is on the limit with the stock map.
I assume your rapid bike evo alters the lambda signal in closed loop. But is it possible to make the open loop richer at the top end, ( I have not had any experience with the rapid bike evo.
The graph looks like a carburetor engine with an undersized main jet. I will try to post the graph on here, if not I will email it to you.
On full throttle the Air fuel ratio on my bike dropped to 12.5 to 1 (ideal) when it got to 80 mph the AFR started to lean until 95 mph when it was 16.5 to 1.
The fuel pressure was a steady 4 bar and the bike is set to run at 13.8 to 1 so the adaptations should make the open loop richer than stock.
If you are running stock fueling and the pressure dropped a touch it would make sense of your problem as it is on the limit with the stock map.
I assume your rapid bike evo alters the lambda signal in closed loop. But is it possible to make the open loop richer at the top end, ( I have not had any experience with the rapid bike evo.
The graph looks like a carburetor engine with an undersized main jet. I will try to post the graph on here, if not I will email it to you.
A failed attempt to post the graph, so much for free photo services.
https://photos.app.goo.gl/XrY1Y6A1n15vv8U96
A failed attempt to post the graph, so much for free photo services.
https://photos.app.goo.gl/XrY1Y6A1n15vv8U96
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Just like that, you will have to teach me how to use that magic wand sometime. 
Just to resurrect this thread, my bike is having similar in issues in terms of smoothness on and off throttle so I have ordered a Quantum fuel pump kit and mahle fuel filter, I hope to do the mod to the fuel housing to remove the stupid "for life" fuel filter this weekend and see if I can get my bike to run smoothly like it did when new.
I have sent the OP a private message hoping for advice on how best to drill out that housing.
I have sent the OP a private message hoping for advice on how best to drill out that housing.
Thanks for bumping this Pukmeister, 'twas a very interesting read.
Just done the mod to my bike - It works !!!
Report on the bypass mod thread.
Report on the bypass mod thread.
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