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2009 Derbi Senda 50 Extreme SM Idle Screw

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Vale46
Two Stroke Sniffer



Joined: 04 Oct 2011
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PostPosted: 09:55 - 31 Jul 2013    Post subject: 2009 Derbi Senda 50 Extreme SM Idle Screw Reply with quote
I was riding my bike the other day and started to notice the bike revving up in neutral and noticed that the idle screw was missing. Does anyone know where I could get a new one from? and how I could temporarily fix the issue until the new one arrives? The bike has a 21mm carb not the standard one as this was changed by a previous owner.

Thanks.

Shaun
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P.addy
Formerly known as
P.



Joined: 14 Feb 2008
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PostPosted: 10:13 - 31 Jul 2013    Post subject: Reply with quote
Find out model of carb, order part.
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Vale46
Two Stroke Sniffer



Joined: 04 Oct 2011
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PostPosted: 10:18 - 31 Jul 2013    Post subject: Reply with quote
Cheers for the reply. I think its TNT 21mm racing carb but im not 100% sure as it wasn't me that bought or fitted the carb. Cant seem to find anywhere that stocks idle screws?
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P.addy
Formerly known as
P.



Joined: 14 Feb 2008
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PostPosted: 14:39 - 31 Jul 2013    Post subject: Reply with quote
Message this company.

https://www.pedparts.co.uk/product/403/tnt-tuning-race-carb-19mm-21mm
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Vale46
Two Stroke Sniffer



Joined: 04 Oct 2011
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PostPosted: 16:21 - 31 Jul 2013    Post subject: Reply with quote
Paddy. wrote:
Message this company.

https://www.pedparts.co.uk/product/403/tnt-tuning-race-carb-19mm-21mm


Thanks mate I have just sent them a message. You wouldn't happen to know what the setting is for the air-fuel mixture screw is do you?
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P.addy
Formerly known as
P.



Joined: 14 Feb 2008
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PostPosted: 16:36 - 31 Jul 2013    Post subject: Reply with quote
Erm, a quick browse of interwebs is 1 + 3/4 turns out from all the way in. Yours may vary though if it has a different carb. Would use that as a base point though.
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Vale46
Two Stroke Sniffer



Joined: 04 Oct 2011
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PostPosted: 16:46 - 31 Jul 2013    Post subject: Reply with quote
Paddy. wrote:
Erm, a quick browse of interwebs is 1 + 3/4 turns out from all the way in. Yours may vary though if it has a different carb. Would use that as a base point though.


Right cheers I saw on some forum 2-2.5 turns and I think mine is currently 2 or 2.25 but it starts to bog down in low revs and stall in 1st but having no idle screw wont really help will it?
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Vale46
Two Stroke Sniffer



Joined: 04 Oct 2011
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PostPosted: 09:42 - 01 Aug 2013    Post subject: Reply with quote
Paddy. wrote:
Erm, a quick browse of interwebs is 1 + 3/4 turns out from all the way in. Yours may vary though if it has a different carb. Would use that as a base point though.


I adjusted the air-fuel mixture to 1+3/4 turns like you suggested and the bike seems to be running a bit better and not bogging down but still can't seem to find an idle screw as everyone I have contacted doesn't stock them and I sent an email to pedparts yesterday but I am still waiting for a reply.

Any other possible suggestions would be appreciated!

Cheers
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Old Thread Alert!

The last post was made 12 years, 224 days ago. Instead of replying here, would creating a new thread be more useful?
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