Author Topic: Loss of power (Read 2565 times)

Gary lad · « **on:** February 03, 2020, 16:21:14 »

Help would be appreciated 2008 DL650 keeps stalling when at traffic lights very intermittent also on motorway coming home it was losing power then all of a sudden it kicked in without me turning the throttle come off the motorway and again loss of power same thing again without turning throttle speared up then had to pull over on the hard shoulder and just died any ideas fuel filter is clean and the pipes are clear

bosnjo · « **Reply #1 on:** February 03, 2020, 17:47:53 »

Usual suspects to check as first step are clutch lever switch and sidestand switch.

mr_diver · « **Reply #2 on:** February 03, 2020, 17:56:50 »

Could also be TPS which is far harder to check.

Also could be wiring for the injectors... the crimp connection where the positive feed splits to go to each injector is known to corrode and fail.
Sometimes leaving you on one cylinder, sometimes none.

Also could be coils, does it happen when cold or more when warm.

Gary lad · « **Reply #3 on:** February 03, 2020, 18:07:17 »

Today it happened when I set off got on the main road then died literally two minute ride started then OK till got on the motorway it’s so annoying also No code on dash to say anything wrong also got this code -C which is correct when tested

Gassoon · « **Reply #4 on:** February 03, 2020, 18:49:12 »

Gary, when you say loss of power, do you mean cutting out while on the move? Sounds too simple, , but might be worth double-checking the battery terminals are tight.

kwackboy · « **Reply #5 on:** February 03, 2020, 19:42:54 »

From the symptoms you describe , the first thing I would look at is the TPS (Throttle Position Sensor) .

Gary lad · « **Reply #6 on:** February 03, 2020, 19:47:29 »

Gassoon it’s definitely not the battery as tightened up on my first stop it’s like when you put your foot down on the excelaerator when driving then slows down loses revs and all of a sudden it picks up

Gary lad · « **Reply #7 on:** February 03, 2020, 19:51:32 »

Kwacboy how do I test the TPS SENSOR THE DIAGRAM IN THE PICTURE IS SHOWING THE CORRECT SETTING WHICH IS ON THE BIKE ANY HELP WOULD BE GOOD
ALSO THE IDLE SPEED ON THE REV COUNTER FLUCTUATES BETWEEN ONE TO ONE AND A HALF

Gary lad · « **Reply #8 on:** February 03, 2020, 19:53:03 »

Diagram

kwackboy · « **Reply #9 on:** February 03, 2020, 20:10:22 »

Those instructions are how to adjust the TPS.
You would also use them when replacing a faulty TPS with a replacement.

You need to unplug the TPS from the loom and remove it from the throttle bodies, you will see 3 pins, you need a multi meter set to ohms so you can see what reading it gives you between the two outer pins from memory, it's been some time since I last tested one...

I don't have one to hand but It looks like you have a manual, it should give you the correct readings and how to test it

Inside a TPS is a ceramic disc that moves when you turn your throttle, these can sometimes crack and wear out sending false readings to your ECU . This can result in bad idling and random running issues.

Gary lad · « **Reply #10 on:** February 03, 2020, 20:27:47 »

Thanks for this I didn’t know they could crack I will try it out many thanks

kwackboy · « **Reply #11 on:** February 03, 2020, 20:52:58 »

Turns out I was a little wrong, it's not the two outer pins and you can test it while on the throttle bodies which is a little difficult in my opinion but you can give it a try.
I found a manual because had some doubts about my last post.
Like I said, it's been a while ....

.

See pic.

Gary lad · « **Reply #12 on:** February 03, 2020, 21:20:40 »

Thanks once again

Gert · « **Reply #13 on:** February 04, 2020, 06:25:14 »

For images of a disected TPS, have a look at post #366 - #368, https://www.sportbikes.net/threads/throttle-position-sensor-issues-are-you-experiencing-poor-idle-mileage-or-stalls.7320/page-19

Downunder · « **Reply #14 on:** February 05, 2020, 05:10:33 »

Your symptoms sound the same as my 2014 DL1000 had recently. After reading up on it I was fairly certain it was a blockage in the small filter on the fuel pump, so I decided to start there. It wasn’t hard to replace the filter and there are you tube videos showing how it is done. Removing the plastics and tank took longer than changing the filter. My filter was very dirty. I have only had the bike out for one decent ride since replacing the filter, however it was back to it’s nicely running old self again.

Old and new filters.

Gary lad · « **Reply #15 on:** February 05, 2020, 09:52:57 »

Many thanks for this info on the filter I have just rounded off one of the fairings bolts as gong too start the process too identify the problem great it could only happen too me

mr_diver · « **Reply #16 on:** February 05, 2020, 12:49:38 »

Quote from: Gary lad on February 05, 2020, 09:52:57

rounded off one of the fairings bolts

"They all do that Sir"

Made of the finest Chineseium.

Gary lad · « **Reply #17 on:** February 05, 2020, 16:10:43 »

Still having issues so put it in dealer mode showing -C00 then when put rev up to 4500 rev it the mark at the top of the c reading about the TPS sensor it should do this about 2000 rev any idea Or am I missing something

TLPower · « **Reply #18 on:** February 05, 2020, 17:08:58 »

My understanding is that the - mark should move to the upper mark just above idle speed, 2k I think. With yours still being in the middle mark above 2k I suspect it's goosed. If it was adjustment it would be in the lower position of the 3 at idle. Search the part number on the TPS, the same one will fit several other bikes other than Suzuki and possibly cheaper.

mr_diver · « **Reply #19 on:** February 05, 2020, 17:52:23 »

Make sure you are doing it with a warm engine. A cold engine will be all over the place.

And if you do decide to adjust it. Be careful, very small movements, make a huge difference.

Anywhere from 2,200 to 3,000 will be in range.
I eventually got mine to 2,400 and gave up getting any closer to 2,200.