Author Topic: Gs550 running bad  (Read 1658 times)

Offline yozzer74

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Re: Gs550 running bad
« Reply #15 on: August 26, 2018, 12:49:41 PM »
Philward it rides surprisingly good .bit bumpy at low speed but ok when speed picks up.k2 I was going to try bigger pilot jets ? Do you think floats position  will work

Offline Greg65

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Re: Gs550 running bad
« Reply #16 on: August 26, 2018, 08:53:18 PM »
This link come from the GS Resources forum and is an invaluable guide to adjusting carbs. Hope it helps.

http://www.factorypro.com/tech_tuning_procedures/tuning_carbtune,CV,high_rpm_engines.html

All the best,
Greg

Edited to get the link working.
« Last Edit: August 26, 2018, 08:56:38 PM by Greg65 »
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Offline K2-K6

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Re: Gs550 running bad
« Reply #17 on: August 27, 2018, 08:20:38 AM »
Philward it rides surprisingly good .bit bumpy at low speed but ok when speed picks up.k2 I was going to try bigger pilot jets ? Do you think floats position  will work

It'll affect the lowest speed mixture more than the rest of the range but it's a real "suck it and see" to judge how much it can influence it.

Ultimately it appears to need just a little more fuel metered to clean up that low speed response (verified by the improvements you get with the screw setting)  so whichever is convenient to change first is worth trying.

 

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