SuzukiSavage.com - Carburetor needle valve spacers

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Carburetor needle valve spacers (Read 50 times)

HefyJefy

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Carburetor needle valve spacers
10/03/16 at 19:31:39

So I finally got around to tweaking the needle spacer on the 2015 s40 Boulvard. This is to try and smooth out the surging at mid-throttle settings that this bike has had from day one. My question is whether there are different spacers available and if so how do the thicknesses change?
I made a replacement nylon spacer that was about half the thickness of the stock one and it seems to have improved things. (The original was 3mm)
Geoff

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Dave YaBB Moderator ModSquad Offline SuzukiSavage.com Rocks! Posts: 18099 Camp Springs, Kentucky Gender:	Re: Carburetor needle valve spacers Reply #1 - 10/04/16 at 03:00:27 Most of us just go to a good hardware store, and buy washers made for #4 machine screws. Most bikes respond well to replacing the white spacer with 3 washers. My bike still had a mid throttle surge - and removing 1 more washer and running just 2 on the needle cured it.
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HefyJefy YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 13	Re: Carburetor needle valve spacers Reply #2 - 10/04/16 at 06:50:27 OK thanks. Yes I wondered whether the material being nylon was important - seems not.
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