Print Page - Carb Jet help.

Title: Carb Jet help.
Post by: DaielHancock on June 10, 2011, 03:27:31 PM

Okay so i need some jets for my 2004 gs500 and im not sure where to get them, infact finding a place on google seems quite hard.

I need a pilot size 20, mid main size 65 and main size 140 or 142.5 (not sure which one, i have standard exhaust but k&N lunchbox, any suggestions on better jetting?)

Every bike place i phone up has the mikuni main jets from size 75-150 but no 65's. Am i asking for the wrong jets? also when i phoned up there were two types of thread sizes on the mikuni jets, 7.5 and 8 (some sort of measurement, not sure) i wasn't sure which one the gs500 k4 jets were, any ideas?

Thanks for the help Daniel.

UPDATE

i was just looking on the gs twin wiki and it says that the part number for the mikuni pilot jets is one of two part numbers,

1. N224.103 and
2. VM28/486

i was just checking this website that specialises in mikuni carbs and jets etc and i found this page.

http://www.allensperformance.co.uk/mikjets.html

This shows both part numbers above and the only difference between them is the difference in diameter of the bleed tube. The specs of each are shown below.

PART NUMBER: N224103:
5.0mm Slot head
M4 Thread
28.0mm length
2.5mm Diameter bleed tube
8 Bleed holes

PART NUMBER: VM28/486:
5.0mm Slot head
M4 Thread
28.0mm length
2.0mm Diameter bleed tube
8 Bleed holes

So can anyone clarify which pilot jet is the correct one to use in my 2004 gs500. Thanks Dan Hancock.

Title: Re: Good company to get Jets from in the UK
Post by: ben2go on June 11, 2011, 07:13:12 AM

If you can't find jets in the UK,PM Buddha.He'll post them to you.

Title: Re: Good company to get Jets from in the UK
Post by: sledge on June 11, 2011, 09:09:44 AM

Tried NRP?

http://www.nrp-carbs.co.uk/

Title: Re: Good company to get Jets from in the UK
Post by: DaielHancock on June 11, 2011, 10:23:17 AM

Quote from: sledge on June 11, 2011, 09:09:44 AM
Tried NRP?

http://www.nrp-carbs.co.uk/
[/quote

The website isn't very good, but i will give them a call on monday. Thanks

Title: Re: Good company to get Jets from in the UK
Post by: DaielHancock on June 11, 2011, 11:00:46 AM

i was just looking on the gs twin wiki and it says that the part number for the mikuni pilot jets is one of two part numbers,

1. N224.103 and
2. VM28/486

i was just checking this website that specialises in mikuni carbs and jets etc and i found this page.

http://www.allensperformance.co.uk/mikjets.html (http://www.allensperformance.co.uk/mikjets.html)

This shows both part numbers above and the only difference between them is the difference in diameter of the bleed tube. The specs of each are shown below.

PART NUMBER: N224103:
5.0mm Slot head
M4 Thread
28.0mm length
2.5mm Diameter bleed tube
8 Bleed holes

PART NUMBER: VM28/486:
5.0mm Slot head
M4 Thread
28.0mm length
2.0mm Diameter bleed tube
8 Bleed holes

So can anyone clarify which pilot jet is the correct one to use in my 2004 gs500. Thanks Dan Hancock.

Title: Re: Carb Jet help.
Post by: DaielHancock on June 12, 2011, 03:50:16 AM

any ideas?

Title: Re: Carb Jet help.
Post by: Big Rich on June 12, 2011, 05:57:46 AM

Did you PM Buddha?

Title: Re: Carb Jet help.
Post by: DaielHancock on June 12, 2011, 07:55:44 AM

i will pm him now :)

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Main Area => General GS500 Discussion => Topic started by: DaielHancock on June 10, 2011, 03:27:31 PM