Ok..! F.I dash light remains ON is pointing to an DFI error..First... run a self diagnostic to check for error codes in the DFI system...Good evening. I just saw your reply tonight.
I’m a 50 yr old dad whom had 86’ 250R and 89’ 250R in early my early 20’s and had fun tweaking them. My son and I bought this 08 450r and I admit I was not prepared for something with a ECM and sensors and may have big problems. The stator is not charging and also
I put a new battery in it. Rode it on a all day trail ride and ran great despite hard starts. Took all apart and replaced broken decompression spring. Also pulled out a old power commander that was only attached to a ground by gas tank. Put all back to together and started but left red light stays on and it lost its low end throttle response.
Ok...The main throttle positioning sensor/TPS will need to be Checked/adjusted to be in range...0.58~0.62v DC @ throttle closed...3.7~4.1v DC @ throttle wide open...see picture belowOk. We have eliminated the code light and seems to run good while the yellow wire is taped together. I just gotta figure out how to pull that plug off to properly fix. Still not charging. Would that be a simple stator replacement? Thank you so much for Your help.
It's a Torx style mounting screw to loosen to adjust or to remove the sensor... I think it's size is T-40...Ok. I will have to ponder this one. Must figure out how to remove the sensor plug first. Nervous about destroying it.
The TPS at 0.57 @ close is out of range...adjust it back into range...0.58~0.62v @ close...Also my battery is 12.85volts.
TPS is .57 closed and 3.86 open.
Can you test the stator output...see picture below...Dang! Thought all was good. I am concerned it’s still not charging. New stator and rectifier and the battery reads 12.6-8 when idling and when give a bit of throttle it drops to 12.3 range and head lights dim when blip throttle. It’s starting and running good.