backfire valve timinig ???????????????????

[dave09]

David Silvers have the round copper crush gaskets, make sure you get the old ones out first with a pick. And plus ensure there is a good seal at the header/link pipe connection.

http://www.ronayers.com/Fiche/TypeID/26 ... up/MUFFLER

http://www.davidsilverspares.co.uk/part ... mber_6498/

cheers for the links wicky i just ordered a set of carb rubbers aswell as when i took the carbs off i found that one of the rubbers the seat had perished and maybe a quarter of the seat was left.

[VTRDark]

carb rubbers aswell as when i took the carbs off i found that one of the rubbers the seat had perished and maybe a quarter of the seat was left.

With intake leaks that is going to give you the Carb cough for sure.

(:-})

[dave09]

still waiting on the carb rubbers to come the noise is really starting to get to me. The revs fluctuate on idle bloke on another forum thinks it could be running to lean.

[dave09]

finally got round to changing my carb mounts thought i would share a couple picture of the one i took of im hoping this cures the problem

[lloydie]

Isn't that slit for the washer on later model vtr's

[dave09]

GOOD NEWS problem solved at last feels like a completly diffrent bike sits there on idle nicely no anoying popping when at lights

[VTRDark]

Well done And yes that split is for the restrictor, not that you need it. It was probably leaking air where the damaged bit is. Either that or the clip was not on tight enough.

(:-})

[tony.mon]

It was probably leaking air where the damaged bit is. Either that or the clip was not on tight enough.

(:-})

Agree, that damage to the rubbers in itself isn't likely to cause these symptoms, so I'd suspect a small air leak in the carb seating somehow.

[dave09]

Well done And yes that split is for the restrictor, not that you need it. It was probably leaking air where the damaged bit is. Either that or the clip was not on tight enough.

(:-})

in my new ones i fitted they have a metal ring in them is it better to remove it

[tony.mon]

Usually I'd say yes, but as yours is now running nicely I'm tempted to say leave well enough alone.

[VTRDark]

Be aware there are two types of rings, the early models have a metal ring which has a round hole and doesn't really restrict much. It more for sturdiness. On the later bikes they made the hole in the ring more of a D shape which restricts things slightly as part of the emissions laws or something silly like that.

(:-})

[VTRDark]

Here's a pic of the two differences between the earlier and later models.


(:-})

[dave09]

Here's a pic of the two differences between the earlier and later models.


(:-})

cheers for the info mine have the metal ring but nothing like the one on the left the ones i fitted are round 'metal ring that is'

[VTRDark]

Leave as it is then, it will give a bit of sturdiness to the rubbers which will help with wear and tear when pulling carbs on and off.

(:-})