Main Jets for Keihin carbs (sold per pair)

€ 14,50 € 9,50 Incl. VAT

Pair of Keihin main jets for CVK carburetors, as used on Triumph Twins from 2001 to 2008.

See details below.

Availability:
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Article number:
NHY011 (B)
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Pair of replacement main jets, Keihin brand, made in Japan.

Larger jets than the original ones will help the "breathing" of the engine - better accelerations and performance. Ideal if you improve the air supply (high-performance air filter, cone air filters with no air box...) and/or if you put an aftermarket exhaust.

For Bonneville, Thruxton, Scrambler, America and Speedmaster (carburetor versions of course !).

Which size?
Originally, Hinckley Twins are fitted with 110- or 120-point jets:
- 110 on Bonneville (790 and 865cc) and America / Speedmaster 790cc
- 120 on Scrambler and Thruxton (865cc) and America / Speedmaster 865cc

Our recommendation is as follows:
- 114/115 on a 790cc with a TEC exhaust line or Toga silencers
- 118/120 on a 790cc with Dunstall or Predator silencers, or with TEC / Togas if the air box has been removed
- 124/125 on a 865cc with a TEC exhaust line or Toga silencers 
- 128/130 on a 865cc with Dunstall or Predator silencers, or with TEC / Togas if the air box has been removed

In principle, it is ideal to increase the size of the jets just enough to make a difference, but not too much to avoid compromising the flexibility of the engine. It is possible to fit larger jets as we recommend, but it is only meaningful with deep engine modifications.

We also offer jets in larger size, for more advanced engine preparations.

Fitting
Direct replacement of original jets.

12 month warranty.

thierry Posted on 5 March 2015 at 17:55

Pas facile a installer tout au moins sur mon scrambler de 2006, contrairement a la notice d'installation du blog, ça n'est pas des vis BTR mais des cruciformes inaccessibles. Il faut donc déposer les carbus pour effectuer l'opération (comptez une heure et demie de travail). Autre erreur, d'origine les gicleurs font 110. Sinon comme ma bécane est équipée de l'option pots piste (les mêmes qu'a l'origine mais vides), filtre a air KN et suppression de l'injection d'air a l'échappement, j'ai trouvé que la modification apportait un peu plus de gnack et pas mal de souplesse. Pour la conso je reviens vous dire quand j'aurai un peu plus roulé.

Réponse British Legends : merci pour ce feedback. Nous avons fait le montage sur une Bonneville carbu 790cc, sans doute les carbus de Scrambler (865cc) sont différents...

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