Posted by JayC on February 28, 2008, 5:38 pm
My '03 XR/CRF50 is running brutally lean on the pilot. Best response
is with the air screw at 3/16 out, if that gives you any indication.
I'm going to give it another cleaning (did it already, but you never
know), but what if there isn't any grunge in there?
My understanding is the pilot jet is non-removable, so how can I
effectively richen the pilot jet? Before you say drill, note that the
jet oriface is about the size of a human hair.
If I can get a wire through it, maybe I can just spin it and wear the
hole bigger?
While I'm on the XR/CRF50 topic, anybody know the what the stock
needle clip setting is?
JayC
Posted by XR650L_Dave on February 28, 2008, 6:13 pm
> My '03 XR/CRF50 is running brutally lean on the pilot. Best response
> is with the air screw at 3/16 out, if that gives you any indication.
> I'm going to give it another cleaning (did it already, but you never
> know), but what if there isn't any grunge in there?
> My understanding is the pilot jet is non-removable, so how can I
> effectively richen the pilot jet? Before you say drill, note that the
> jet oriface is about the size of a human hair.
> If I can get a wire through it, maybe I can just spin it and wear the
> hole bigger?
> While I'm on the XR/CRF50 topic, anybody know the what the stock
> needle clip setting is?
> JayC
Its *probably* crunge, but in either case I've had good luck with
torch-tip cleaners, using the not-knurled part for cleaning, and the
knurled part for reaming.
Disassembling some lamp cord can yield some usefully sized rodding-out
wires.
Dave
Posted by Andy Waddell on February 28, 2008, 6:48 pm
"Disassembling some lamp cord can yield some usefully sized rodding-out
wires."
I find the bristles from various wire brushes to be better (stiffer).
--
ADW
>> My '03 XR/CRF50 is running brutally lean on the pilot. Best response
>> is with the air screw at 3/16 out, if that gives you any indication.
>> I'm going to give it another cleaning (did it already, but you never
>> know), but what if there isn't any grunge in there?
>>
>> My understanding is the pilot jet is non-removable, so how can I
>> effectively richen the pilot jet? Before you say drill, note that the
>> jet oriface is about the size of a human hair.
>>
>> If I can get a wire through it, maybe I can just spin it and wear the
>> hole bigger?
>>
>> While I'm on the XR/CRF50 topic, anybody know the what the stock
>> needle clip setting is?
>>
>> JayC
> Its *probably* crunge, but in either case I've had good luck with
> torch-tip cleaners, using the not-knurled part for cleaning, and the
> knurled part for reaming.
> Disassembling some lamp cord can yield some usefully sized rodding-out
> wires.
> Dave
Posted by William Smith on February 29, 2008, 3:19 pm
wrote:
>My '03 XR/CRF50 is running brutally lean on the pilot. Best response
>is with the air screw at 3/16 out, if that gives you any indication.
>I'm going to give it another cleaning (did it already, but you never
>know), but what if there isn't any grunge in there?
>My understanding is the pilot jet is non-removable, so how can I
>effectively richen the pilot jet? Before you say drill, note that the
>jet oriface is about the size of a human hair.
>If I can get a wire through it, maybe I can just spin it and wear the
>hole bigger?
>While I'm on the XR/CRF50 topic, anybody know the what the stock
>needle clip setting is?
>JayC
Just went through that problem with my grandsons 04 and 05 crf.
Bottomline, replaced carburators.
We were getting crude in them. The techs said, that every time we
cleaned them out we did enlarge the holes. After we replaced the
carbs, ran like champs.
Bill & Debbie Smith
"The Slow Group"
97 -- 250KDX (Son-in-Law)
04 -- XR400 (Grandpa)
04 -- TTR125E (Debbie)
04 -- CRF150 (Family)
04 -- CRF50 (David)
05 -- CRF50 (Anthony)
06 -- 250 Quad (The two wheel handicapped people in our group)
Posted by Hustlin' Hank on February 29, 2008, 5:57 pm
> My '03 XR/CRF50 is running brutally lean on the pilot. �Best response
> is with the air screw at 3/16 out, if that gives you any indication.
> I'm going to give it another cleaning (did it already, but you never
> know), but what if there isn't any grunge in there?
> My understanding is the pilot jet is non-removable, so how can I
> effectively richen the pilot jet? �Before you say drill, note that the
> jet oriface is about the size of a human hair.
> If I can get a wire through it, maybe I can just spin it and wear the
> hole bigger?
> While I'm on the XR/CRF50 topic, anybody know the what the stock
> needle clip setting is?
> JayC
Buy some guitar strings or get some used ones free from a friend. A
whole new set costs less than $4. That'll clean the ports and are
flexible and strong.
Hank <~~~not stringing you along :-)
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> is with the air screw at 3/16 out, if that gives you any indication.
> I'm going to give it another cleaning (did it already, but you never
> know), but what if there isn't any grunge in there?
> My understanding is the pilot jet is non-removable, so how can I
> effectively richen the pilot jet? Before you say drill, note that the
> jet oriface is about the size of a human hair.
> If I can get a wire through it, maybe I can just spin it and wear the
> hole bigger?
> While I'm on the XR/CRF50 topic, anybody know the what the stock
> needle clip setting is?
> JayC