SV650.org - SV650 & Gladius 650 Forum

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SV650.org - SV650 & Gladius 650 Forum (http://forums.sv650.org/index.php)

- SV Talk, Tuning & Tweaking (http://forums.sv650.org/forumdisplay.php?f=111)

- - TPS adjustment (http://forums.sv650.org/showthread.php?t=91586)

Surly

18-06-07 09:00 PM

TPS adjustment

Sorry if this is redundant. I found no explination in searching, just references to TPS adjustment.
What is it? Benefits? Is it DIY-able?
Thanks
Pointy SVS in the States

Biker_Billy

18-06-07 09:06 PM

Re: TPS adjustment

Quote:

Originally Posted by Surly (Post 1215970)

Sorry if this is redundant. I found no explination in searching, just references to TPS adjustment.
What is it? Benefits? Is it DIY-able?
Thanks
Pointy SVS in the States

Hi,

Its in the How to's in the original website - www.sv650.org, click how to's

I tried it this weekend - got all the kit, took the seat off, tank up, pillion seat off, made my dealer tool, plugged it in, went to adjust the TPS and realised I only had a T25 torx, NOT security torx bit!!! Doh!!!

Good luck with it, and let us know how you get on.

Billy.

Surly

18-06-07 09:26 PM

Re: TPS adjustment

Ahhh... Throttle position sensor, that makes sense. I've only had the bike a few days so I'll look into doing that after the 600mi service. Sounds straightforward. Thanks!

phil24_7

21-06-07 03:12 AM

Re: TPS adjustment

Welcome to the org.

Get over to idle banter and post a newbie thread so's everyone can give ya a warm welcome!

Surly

21-06-07 01:38 PM

Re: TPS adjustment

Will do, Thanks!

adw	21-06-07 01:45 PM

Re: TPS adjustment

What benefits would TPS adjustment bring? I thought it was a kind of potentiometer that told the ECU how hard you've opened the throttle etc.

Please educate me :p

Baph	21-06-07 02:06 PM

Re: TPS adjustment

Quote:

Originally Posted by adw (Post 1218428)

What benefits would TPS adjustment bring? I thought it was a kind of potentiometer that told the ECU how hard you've opened the throttle etc.

Please educate me :p

Smoother fuel delivery at low revs. The TPS tells the FI unit when to kick in basically.

By default, you get a surge of power around 3000 RPM, moving the position of the TPS counters this.

Sid Squid

21-06-07 08:10 PM

Re: TPS adjustment

Quote:

Originally Posted by Baph (Post 1218460)

Smoother fuel delivery at low revs. The TPS tells the FI unit when to kick in basically.

The TPS primarily controls low RPM ignition timing.

Quote:

Originally Posted by Baph (Post 1218460)

By default, you get a surge of power around 3000 RPM, moving the position of the TPS counters this.

This is not the default setting, if it were that'd be where the manual would tell you to adjust it to. The TPS doesn't counter anything and the recommended setting is just that - the right one. If yours 'surges' or any other less than happy behaviour at 3000rpm, then the setting is off and needs to be adjusted to set it right. That is back to the standard and correct setting.

Surly

21-06-07 11:11 PM

Re: TPS adjustment

Well done Sid, thanks.

Baph	22-06-07 02:19 PM

Re: TPS adjustment

Quote:

Originally Posted by Sid Squid (Post 1218702)

The TPS primarily controls low RPM ignition timing.

This is not the default setting, if it were that'd be where the manual would tell you to adjust it to. The TPS doesn't counter anything and the recommended setting is just that - the right one. If yours 'surges' or any other less than happy behaviour at 3000rpm, then the setting is off and needs to be adjusted to set it right. That is back to the standard and correct setting.

My knowledge on the subject was taken from this thread. IMO, 3000 RPM is too high for the setting, and it feels a lot better setting it lower. Throttle freeplay also plays a big part in the snatchy feeling (ie, if the throttle cable is slightly too tight mainly).

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