TPS Adjustment Step-by-Step Pictorial Guide

[flymo]

Originally Posted by chester_dio

I tried to do the adjustment today. The top bolt came out but i didnt manage to untighten the bottom one. After many efforts it is now completely rounded. Is there anything I can do to take it out?

A light application of penetrating oil as close to the thread as you can get it. Then gently hacksaw a slot across the rounded screw head, use a short flat bladed screw driver to remove it. Alternatively, careful use of a centre punch to rotate the screw head in the correct direction to undo it.

Originally Posted by flymo

Alternatively, careful use of a centre punch to rotate the screw head in the correct direction to undo it.

How can I rotate the the screw head with a centre punch??

I did this the other day and low end pickup is smoother and less jerky.
easier and smoother around town traffic.

[flymo]

Originally Posted by chester_dio

How can I rotate the the screw head with a centre punch??

The punch can be placed at the edge of the screw head, tapping it with a hammer to make a small indentation first and then slightly more sharply to rotate the head around.

[Sid Squid]

Chester_dio: Take the throttle bodies off and use pliers or grips to undo the screw, it really isn't tight, just a little awkward to get to, using grips it will come out quite easily.
For preference replace the screw with something easier to remove.

[flymo]

I adjusted my SV1000 again. Bar on the dash was moving at about 1800 revs or so, wasnt far out and took a little faffing around but the effort to get things spot on is worth it. Even adjusting from 1800 to moving at 1500 has improved things further.

Very smooth acceleration and slow running now.

Finally got round to doing this - most pleased!

It has really smoothed out the jerkiness at low revs - not necessarily gone 100%, but deffo a whole lot better. It was previously kicking in at about 3800rpm. Thanks to all who have posted clear and helpful pointers and thanks to the original poster too.


I changed the plugs while I was at it which probably helps too although the old plugs looked fine. I always like to do two fixes to a problem at one time. That way I never find out what made the difference!

Originally Posted by flymo

Then gently hacksaw a slot across the rounded screw head, use a short flat bladed screw driver to remove it.

That did the trick and was much easier than I had thought. Thanks a lot for the idea Fylmo.
I did the adjustment and it feels a lot better now while manuvering at slow speeds. I got it down from 3500 to 1550.

i checked mine and the bar didnt even move at 6000RPM!

replaced it but not checked what engine speed it moves at but it's VERY sensitive and has resolved my problems with it running exremely lean over 5500rpm.

Thanks for the great tutorial!!!!

Just finished this and it's so smoooooooooth.

Makes town riding a lot more enjoyable.

Thanks again