Gt500 lurchingwhen slowing down

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Vince
On the street
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Joined: Mon May 07, 2012 8:43 am
Country: UK
Suzuki 2-Strokes: Gt500, GS1000S

Gt500 lurchingwhen slowing down

Post by Vince »

My Gt 500 generally runs smooth at constant speed, accelerates well and ticks over ok but when I am slowing down for a junction say and shut off the throttle, it lurches on and off making it 'kangaroo'. I have to pull the clutch in to stop it.
Both carbs are balanced with slides going up and down in sinc and without the engine running they return to closed instantly.
Bike is standard with air box, new filter, standard jets. Inlet rubbers are all good.
Any ideas please as it makes riding slowly near impossible.
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Alan H
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Suzuki 2-Strokes: 4 x GT550s - J, M, A, B.
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Re: Gt500 lurchingwhen slowing down

Post by Alan H »

Chain worn/slack or maybe rear wheel hub rubbers worn?
Think of how stupid the average person is, then realise that half of them are more stupid than that.
Vince
On the street
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Joined: Mon May 07, 2012 8:43 am
Country: UK
Suzuki 2-Strokes: Gt500, GS1000S

Re: Gt500 lurchingwhen slowing down

Post by Vince »

Just checked it and yes, they are worn and there is play but I wouldn't have thought enough to cause the lurching. Actually, it's the lurching that's probably making the Cush drive rubbers worse.
Definitely worth me getting them changed though, thanks for the tip. :up:
titan performance
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Re: Gt500 lurchingwhen slowing down

Post by titan performance »

Hi Vince....it's a common-ish problem, which you will probably reduce by increasing the pilot jet to 32.5.
Keeping old 2 strokes alive !
Vince
On the street
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Joined: Mon May 07, 2012 8:43 am
Country: UK
Suzuki 2-Strokes: Gt500, GS1000S

Re: Gt500 lurchingwhen slowing down

Post by Vince »

titan performance wrote:Hi Vince....it's a common-ish problem, which you will probably reduce by increasing the pilot jet to 32.5.
Thanks for the advice. Are they available and if so where's the best place to get them? Robinsons, crooks?
tricky1962
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Suzuki 2-Strokes: T500J
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Re: Gt500 lurchingwhen slowing down

Post by tricky1962 »

You could just try screwing the pilot screws a quarter of a turn or so first to richen the mixture
This works on my T500
Vince
On the street
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Joined: Mon May 07, 2012 8:43 am
Country: UK
Suzuki 2-Strokes: Gt500, GS1000S

Re: Gt500 lurchingwhen slowing down

Post by Vince »

tricky1962 wrote:You could just try screwing the pilot screws a quarter of a turn or so first to richen the mixture
This works on my T500
:up: :up:
Vince
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Joined: Mon May 07, 2012 8:43 am
Country: UK
Suzuki 2-Strokes: Gt500, GS1000S

Re: Gt500 lurchingwhen slowing down. UPDATE.

Post by Vince »

Quick update, fitted 32.5mm pilot jets and it's cured the problem. Can't tell you how much grief this problem has given me so I am chuffed as hell to have sorted it. :up: :up:
Many thanks to 'Titan performance' for the tip. :clap: :clap:
titan performance
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Re: Gt500 lurchingwhen slowing down

Post by titan performance »

Glad to help......
Keeping old 2 strokes alive !
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