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Post by kostas on Nov 22, 2014 18:46:13 GMT 1
Ok,
I have been looking at how the carbs should be set up but I have some questions,
Ok I know where the main jet is but cannot figure out the rest,
Where us the air jet and how is this changed?
Same about the pilot jet,
How do I know which needle I have?
Is the 240 main jet standard for the 350 ypvs F1?
Think mine has 220 fitted ...
Kostas
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Post by markhoopy on Nov 22, 2014 20:51:05 GMT 1
Someone will hopefully help you out with a pic of the inside of a carb to identify the bits you ask about - I don't have a set myself but the cavalry are on their way  In the meantime this might help: rdlccrazy.proboards.com/thread/7098/jetting-carbs |
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Post by midlifecrisisrd on Nov 22, 2014 20:59:41 GMT 1
31k uk carbs usually have a 240 main but is typically on the rich
Have seen imports with 220 mains and run fine.
If you look at the inside of the car you can see the main jet. Near it you will see a hole with what looks like a brass screw deep in it. This is the pilot jet.
The air jet is on the side of the car beside the idle screw. It is a taper that when you screw it in restricts air through the passage.
Needles usually have very small writing on them at the upper end.
Steve
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Post by kostas on Nov 22, 2014 21:35:15 GMT 1
Ok,
Thanks Markhoopy, already seen that one and got me thinking.
Hi Steve, thanks for the info, now got to check the rest to see where I'm at.
Kostas
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Post by midlifecrisisrd on Nov 22, 2014 21:56:57 GMT 1
Ok, Thanks Markhoopy, already seen that one and got me thinking. Hi Steve, thanks for the info, now got to check the rest to see where I'm at. Kostas Remember to take the emulsion tubes out to clean them. To remove you undo the main jet and take the washer off before loosely refitting the jet. Then tap on the jet and it should slide through the carb Steve |
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Post by kostas on Nov 23, 2014 9:48:00 GMT 1
Ok, Thanks Markhoopy, already seen that one and got me thinking. Hi Steve, thanks for the info, now got to check the rest to see where I'm at. Kostas Remember to take the emulsion tubes out to clean them. To remove you undo the main jet and take the washer off before loosely refitting the jet. Then tap on the jet and it should slide through the carb Steve Hi Steve, Emulsion tube already done, carbs are clean but I forgot to look at the jets before I assembled.. Now they have to come off again, already started the bike and runs sweet but I have to check. Can't afford a seize over this. Thanks Kostas |
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Post by bikeblue2005 on Nov 27, 2014 23:08:53 GMT 1
Would like to run a 400 kit on a 350 ypvs but don't know what to do for carbs any one have any idea s  ? |
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Post by midlifecrisisrd on Nov 28, 2014 10:12:24 GMT 1
Would like to run a 400 kit on a 350 ypvs but don't know what to do for carbs any one have any idea s ? Most common upgrade is keihin pwk 28's from a kr1s but norbo now does bigger carbs in the site shop. Got the pwk's on my 385 with good results. The standard carbs are good for over 70 horse. Steve |
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Post by bikeblue2005 on Nov 28, 2014 22:08:46 GMT 1
thanks steve thats tip top.that size main jets do you run in the pwk's.
i all so have a rs 250 aprilia and running 380 mains with open air box
bruce
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Post by midlifecrisisrd on Nov 29, 2014 12:14:48 GMT 1
thanks steve thats tip top.that size main jets do you run in the pwk's. i all so have a rs 250 aprilia and running 380 mains with open air box bruce Running air box with standard filter. 35 pilots, 140 mains. If using pods it is nearer 42 pilot and 152 main. Stwve |
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Post by kostas on Dec 1, 2014 20:20:18 GMT 1
31k uk carbs usually have a 240 main but is typically on the rich Have seen imports with 220 mains and run fine. If you look at the inside of the car you can see the main jet. Near it you will see a hole with what looks like a brass screw deep in it. This is the pilot jet. The air jet is on the side of the car beside the idle screw. It is a taper that when you screw it in restricts air through the passage. Needles usually have very small writing on them at the upper end. Steve Hey Steve, So found the jets as you advised, Is there an air jet and an air screw? I fould the adjuster beside the idle screw, now is the air jet or air screw? Are those the same? Kostas |
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Post by midlifecrisisrd on Dec 1, 2014 21:00:32 GMT 1
Yes the same.
Air jet. Air screw. Air pilot
Steve
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