Let me expound on it a bit. The mains are designed to control everything above 1/8 throttle but they will still have an affect on the bottom end. If they have a positive affect on the bottom end it is because your pilot jets are most likely clogged. Think about it logically. The manufacturer tells you the pilot jet is for adjusting the idle mix, but yours doesn't work. What could make it not work? If you look at a carb diagram you will see that there are passages coming in from the side of the jet that could be clogged. The best way to clean a carb is to use a caustic dip cleaner and then carefully use an air gun and maybe a set of jet reamers. You can get jet reamers from a welding supply company. They use them to clean torch jets. Use a lot of care and be thorough.
Al Hatten
'93 Virago XV-1100
VOC #7745
Napa,CA - Wine Country
On Wed, 28 Apr 2004 12:23:03 -0400, Dave Cramer wrote:
> Al,
>
>
> If that were true, why does changing the mains help it ?
>
>
> Also from my first note, turning the pilot screws does
> nothing, until they are almost closed.
>
> Dave
> On Wed, 2004-04-28 at 12:03, Al Hatten wrote:
>> The bottom 1/8 is controlled by the idle screws. The
>> mains affect everything else. Put the old mains back
>> and work on the idle circuits and pilot circuits.
>>
>>
>> Al Hatten
>> '93 Virago XV-1100
>> VOC #7745
>> Napa,CA - Wine Country
>
>>
>> On Wed, 28 Apr 2004 08:50:17 -0400, Dave Cramer wrote:
>>
>>> I recently cleaned and re-jetted my carbs using a jet
>>> kit from factory pro.
>>>
>>> I reset the float level to 21mm from the gasket
>>> surface to the top of the float, one was considerably
>>> higher, by about 3 or 4 mm.
>>>
>>> The kit comes with slightly larger pilot jets, and
>>> they are an "emulsion" type, ie they have air holes
>>> in the side.
>>>
>>> Now the pilot jet doesn't seem to do much unless I
>>> close it completely? Plus the bottom 1/8 of the
>>> throttle is dead, so I increased the size of the
>>> mains to compensate, and that fixes the 1/8 throttle
>>> problem but overall it is running richer than I would
>>> like, and the pilot screws still don't effect it much.
>>>
>>> Any suggestions? At this point I may tear it down
>>> again and replace their pilot jets with the factory
>>> ones.
>>>
>>> Dave
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