Quote:
Originally Posted by Sid Squid
Yes, this is exactly the same procedure that is in the manual, (Suzuki's own and Haynes et al), it's nothing magical and is a part of normal servicing.
Set as described in Tim's above article, the line should be in the centre at idle, and move to the upper position as the engine speed rises from idle. This allows the FI system to know where the throttle is, (it's a Throttle Position Sensor!), specifically here the shut throttle as that's the index position, nothing special, no 'putting more fuel in' at whatever revs, there are many misconceptions about what the TPS does, but it's really very simple.
Things to bear in mind:
1) If you balance the throttle bodies or adjust the idle speed, the setting will alter. As I mentioned above the throttle stop and balance assembly are on one end of the linkage, the TPS on the other.
2) Other service procedures have an effect on throttle balance, so;
3) TPS setting should be done last, after clearances, plugs, filter clean, throttle balance and idle setting, if the TPS or balance or idle are a long way off, resetting might be necessary after one or another is done, but the last thing should always be the TPS as it's setting is directly affected by throttle balance and idle speed.
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Ok, I'm fine with all that. The bit that was unclear from your earlier post was wether or not the line should begin to move upwards from the center at around 3000rpm or a lower speed than that.
Are we implying that they leave the factory with an intentional setting of around 3000rpm or that it has drifted since factory setting due to settling or wear of the linkages.
This part isnt described in the manuals.