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CV Carb mod to replace plastic washers, which locate under needle circlip that wear out.


jonny1bump

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Measured the step & top of slide to base is 54mm. Step side is 52mm so the step takes up 2mm of the 4mm of the new washer.

So 2mm sits above the base of slide. On the worn ones, 1 to 1.5mm sits above the step so there's a discrepancy there.

However, i have never had these carbs on a bike & would guess that given how badly worn they are, the bike they came off must have been running pretty lean, on middle clip position!

So until others come along with the measurement for needle protrusion for a std needle on middle clip, i will move mine back to that (59mm) & assume that is the best option till it's properly set up & it then gives me lean/rich adjustment options.

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Hi

Posty dropped the washers off so I thought I'd try them on a spare set of 40s because I still need mine on the road.

Quality is great & they fit real good.

Here's some photos in the best before & after 'stylie'.

Before;

 

2.PNG.f73e589e57b2015d31812ea215ca5073.PNG

 

1.PNG.73e0a52efb5a303f216776844020f949.PNG

 

3.PNG.1b9c232323d440d3ef9de53e39563921.PNG

After, with them fitted

5.PNG.710eaaee74923108a99095ed1b5c3847.PNG

4.PNG.0210b4c0da1487ba06c7218dde14b15e.PNG

6.PNG.8276b2b8c28ff103c818c46cec4571bf.PNG

I'll fit them to my 38s & post it up.

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On 12/8/2018 at 1:24 AM, Nelson said:

Hi

Posty dropped the washers off so I thought I'd try them on a spare set of 40s because I still need mine on the road.

Quality is great & they fit real good.

Here's some photos in the best before & after 'stylie'.

Before;

 

2.PNG.f73e589e57b2015d31812ea215ca5073.PNG

 

1.PNG.73e0a52efb5a303f216776844020f949.PNG

 

3.PNG.1b9c232323d440d3ef9de53e39563921.PNG

After, with them fitted

5.PNG.710eaaee74923108a99095ed1b5c3847.PNG

4.PNG.0210b4c0da1487ba06c7218dde14b15e.PNG

6.PNG.8276b2b8c28ff103c818c46cec4571bf.PNG

I'll fit them to my 38s & post it up.

What an improvement. Thanks for posting the pictures 

  • Like 1
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