TPS Adjustment Step-by-Step Pictorial Guide

I would like to thank you for this wonderful tutorial.

I have bought my sv650s K6 as my first bike just couple of months ago. I was very uncomfortable riding my bike in a city as it was very jumpy at low revs.

This adjustment made a huge difference, the motorbike became very smooth.


Just out of curiosity let me tell you how my bike was set up before adjustment:

- RPMs were too high on idle at around 1650 - 1700
- when I tried to use the idle adjust screw it did not help as the bike would stall on me, then a throttle pull would stall the bike again
- when the engine was cold I had to let it settle at least to 45 degrees of Celsius otherwise it would stall when shifting to N or when taking off with less then 3500 RPMs


This could actually help some of you guys as my bike was different then from what is in the tutorial. My sensor was set a WAY OVER thus very jumpy bike at lower revs.

- when I set the motorcycle to a dealer mode "the minus sign" was not aligned at the middle however it was already at the top with above mentioned 1650 - 1700 RPMS

- it took me couple of minutes to align the minus sign to the middle position by turning the sensor anti - clockwise - this was my start point for further adjustment

- the top was then around 4100 RPMs

- after turning the sensor further more to left and keeping the minus still at the middle I was able to set it at 1500 RPMs.


The RESULTS

- the bike starts nicely and does not stall

- the idle RPMS are now around 1350

- the top RPMs are now at 1500

- I can now take off just by slowly releasing the clutch without any throttle

- running at low RPMs and shifting is smooth


- all done in 40 mins



Thanks again for this.

[muzikill]

Did it, love it. Balanced the carbs again after doing it. Sorted

As the injectors kick in earlier has anyone seen any changes to tank range, mileage etc....?

Originally Posted by muzikill

Did it, love it. Balanced the carbs again after doing it...

You replace your throttle bodies with carbs?

[muzikill]

Originally Posted by The Guru

You replace your throttle bodies with carbs?

duh! hahah you know what i meant

Did this today. Line was moving up at about 3500rpm.

Thanks to this great write up the job tok around 30mins from tools out to tools away.

I've not read whole thread so don't know if it's been mentioned already, but to make getting to the bottom torx screw easier I used a 1/4" ring spanner to hold the torx bit. A 6mm socket on a mini ratchet wrench would probably do the job even better.

Thanks to the OP for posting this up

Done mine tonight....I shouldn`t start jobs when its getting dark...but the hardest part is finding the right plug to put it into service mode, that and the bike stalling a couple of times as I tweeked the TPS...gotta go out for a ride now and see how the bike feels, can`t be any worse as the little line was moving at 3500rpm ish. Is the figure of 1450rpm come from a main dealers ??

[muzikill]

Most people have it set at that. My one is set at 1900 along with a throttle balance. My bikes a k3 and I found after much adjusting that it was the best compromise. I found 1450 to be fine when rolling off the throttle but to much of a power burst when trying to control when twisting the throttle on.

Did mine last week on my thou. Worked a treat, much better at very low speed. I found this little tool was just the job.
http://www.machinemart.co.uk/shop/pr...-proof-bit-set

Hey guys,

Tried doing this and was able to loosen the top TPS bolt but have completely wrecked the bottom bolt. Having a search through the thread, I have seen people have mentioned to replace with allen head bolts (and one person provided a link to sears) however I have not seen any links to the correct bolt from a UK site. I was wondering if people knew which bolt I could replace these with (when I do finally get it off)?


Regards,

Ravi

Originally Posted by rav101

Hey guys,

Tried doing this and was able to loosen the top TPS bolt but have completely wrecked the bottom bolt. Having a search through the thread, I have seen people have mentioned to replace with allen head bolts (and one person provided a link to sears) however I have not seen any links to the correct bolt from a UK site. I was wondering if people knew which bolt I could replace these with (when I do finally get it off)?


Regards,

Ravi

Yeah, those screws are awful. I'd also like to know what thread and size etc is needed for this. I just had a look at some parts fiches and they just list it as "Screw". Helpful.