Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[budsgalore]

I had my bike(2007 FXDSE w/thunderheader and Heavy Breather) dyno tuned in June, rode 5000 miles took it in for a oil change and asked them to check why I could smell un burnt fuel. They put it on the dyno and tried to tell me someone else had messed with it or re-tuned it. I told them no-one else has touched it(true). The afr had dropped from 13.5 to just under 12, HP from 92 to 86 and torque from 115 to 113 What may of happened I didn't touch anything, change anything or unhook anything. Any Idea's

Thanks

[Doc 1]

I had my bike(2007 FXDSE w/thunderheader and Heavy Breather) dyno tuned in June, rode 5000 miles took it in for a oil change and asked them to check why I could smell un burnt fuel. They put it on the dyno and tried to tell me someone else had messed with it or re-tuned it. I told them no-one else has touched it(true). The afr had dropped from 13.5 to just under 12, HP from 92 to 86 and torque from 115 to 113 What may of happened I didn't touch anything, change anything or unhook anything. Any Idea's

Thanks

What was it tuned with? Whats the fuel pressure?
Doc

[timo482]

did they unhook the 02 sensors? if so just engine wear will change the tune

to

[budsgalore]

TTS Mastertune on a 250ix Dynojet dyno
One correction to the orginal post I did put a LED tail light and LED rear signal lights on during this time.

not sure about fuel pressure,

[Doc 1]

You could have a failing 02 sensors, ecm going bonkers, or injector sticking open.
Doc