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1973 GT550. Where to source viton needle & seat?

Posted: Sun Feb 14, 2016 10:12 am
by hailwood1965
Hi

Looking to replace my not looking great needle and seat in each of the carbs on my stock 1973 GT550.

Are there two different sets of carbs for the 1973? getting conflicting info.

OEM needle and seat seem to have a "2.0" or something on them, if that helps.

Any suggestions and links very welcome.

Re: 1973 GT550. Where to source viton needle & seat?

Posted: Sun Feb 14, 2016 10:14 am
by hailwood1965
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Re: 1973 GT550. Where to source viton needle & seat?

Posted: Sun Feb 14, 2016 11:32 am
by GTandcbr
Hi two different types of carbs J and K had single carbs other models were 'gang' Carbs having a bar across the top but the internals are essentially the same. If you have no luck your side of the pond email gtreiner1@aol.com he will be able to supply them for you

Re: 1973 GT550. Where to source viton needle & seat?

Posted: Sun Feb 14, 2016 2:31 pm
by hailwood1965
Def three single carbs here, thanks.

Any suggestions welcome.

Re: 1973 GT550. Where to source viton needle & seat?

Posted: Sun Feb 14, 2016 3:32 pm
by GTandcbr
Look here
http://www.partzilla.com/parts/search/S ... parts.html" onclick="window.open(this.href);return false;

Re: 1973 GT550. Where to source viton needle & seat?

Posted: Sun Feb 14, 2016 5:20 pm
by Alan H
There are 2 types of separate carbs for the 550, hi top and low top types. Parts are diferent. Have a look at the following link for more info.
Regarding spares, try to buy genuine as they will be better than pattern.
Your local Suzuki dealer may be able to help, otherwise Marcel in Holland is very good, or CMSL in the UK.

http://www.oldjapanesebikes.com/mraxl_G ... /index.php" onclick="window.open(this.href);return false;

Re: 1973 GT550. Where to source viton needle & seat?

Posted: Sun Feb 14, 2016 6:31 pm
by jabcb
They will be a good bit cheaper if you ordrer them by the Mikuni part numbers.
See:
http://jetsrus.com/needle_valve_float_b ... ikuni.html