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Post by ihrugby on Nov 30, 2012 9:57:42 GMT -6
Hey Guys......Have 2008 Jonway yy250t - K F Japan / HF18JL1 stamped on carb.......Pulled Main 110 Jet and Pilot jet no number just one piece and sets counter sunk in Intermediate chamber tube. Followed Big Guy video and noticed Pilot jet clogged tried to dislodge dirt from both sides of jet with no luck, still can't blow through jet, which might explain why it wouldn't start with fuel and spark. Needle clip was set on 4th clip from top with one remaining clip slot.Label on needle reads k2.....a or q or o not sure on last character. What size Pilot Jet with Main jet should I get for replacement? Also where does Pilot Jet tube fuel release from so I can make sure the circuit is still open for fuel after cleaning with carb cleaner........TIA  |
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Post by JR on Nov 30, 2012 10:41:17 GMT -6
Soak it in carb cleaner and then you'll need some high pressure air more than likely? Also if it's that clogged you'll probably need to take some fine stiff wire brissels and push through the tiny hole/s. A cutting torch tip cleaner, the ones with assorted sizes works well. too.
JR
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New Student
Currently Offline
Posts: 15
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Joined: Sept 12, 2011 8:07:41 GMT -6
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Post by ihrugby on Dec 11, 2012 15:20:15 GMT -6
JR after cleaning intermediate jet, I did get a bunch of crud out out of it, but only got small hole about twice the size of one of the airated holes on the bottom side of the jet. Now I thought there was supposed to be a crosshair with 4 quad holes. Is this right? or Is what I have workable too?...or should I get a new intermediate Jet?.......TIA  |
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Post by alleyoop on Dec 11, 2012 19:32:58 GMT -6
Some pilot jets have crosshairs some do not. But here is where the PILOT JET fuel comes out right by the butterfly so that when you do clean it out Spray does out out of the tiny outlets. Alleyoop  |
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Post by richardthescooter3 on Dec 12, 2012 9:10:19 GMT -6
If your pilot outlet holes are clogged, will you have harder time starting scoot. (mine is starting a lot better, but not where I want it yet, it fires first times, then shuts off, then it a couple more to get it started almost like its not getting enough gas, also the idle will go up to 2200 almost like its staring to warm up all over again.
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Post by alleyoop on Dec 12, 2012 13:59:13 GMT -6
If the idle goes up to 2200 rpms Then starts to drop after a few minutes that is good, that means the ENRICHER is doing it's job.
Alleyoop
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..BAD TO THE BONE..
