gerry
Scoot Member
Posts: 21 
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Post by gerry on Mar 26, 2013 17:45:05 GMT -5
I was able to get the screws out of my factory carb to rejet it does anyone know what thread size the jet is? I took it to a bike shop and they didn't have any jets that small. I've seen jets with 4mm and like 3.85 thread size. I don't want to order the wrong size. Any help would be great.
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Post by scootsandwelding on Mar 26, 2013 18:25:12 GMT -5
Just go to scappydogs.com they have the jets for your scooter. Almost all of these Chinese scoots have interchangeable parts. And whenyou checked your plug you can only read what the plug was doing the moment you killed the engine. But these scoots basically always need to be up jetted, to big is always better than to small of a jet.
So if you pulled it after it was at an idle then your only reading the pilot jet or your a/f mix screw
Sent from my SPH-M950 using proboards
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Post by teddy554 on Mar 26, 2013 18:29:31 GMT -5
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gerry
Scoot Member
Posts: 21
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Post by gerry on Mar 26, 2013 19:04:45 GMT -5
"Scoots" what do you mean " read my plug"?
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gerry
Scoot Member
Posts: 21
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Post by gerry on Mar 26, 2013 19:07:28 GMT -5
I just changed my header pipe and muffler my factory jet size is 79 I'm told to start at 85 and go from there
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Post by teddy554 on Mar 26, 2013 19:18:09 GMT -5
reading your plug means to taking it out and doing a visual check of it different signs mean different things   |
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gerry
Scoot Member
Posts: 21
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Post by gerry on Mar 26, 2013 19:26:39 GMT -5
I only rode it once for about 10min since I changed piper and roller weights do you thing that is enough run time to get a read on the plug
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Post by teddy554 on Mar 26, 2013 19:30:45 GMT -5
the best way they say to do a plug chop is to warm the scoot up, shut it off put a new plug in and do a wide open 50-75 dash and kill the power pull the plug and see what you got, thats for the main jet, got to remember there is about three different area to jet a carb correctly can be perfect on some and off on others
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Post by scootsandwelding on Mar 26, 2013 20:03:30 GMT -5
You want a pilot thats big enough to makes cold starting easier and doesn't bog orb choke when you gun it from a stop and a main that doesn't run lean at wot, and your needle position is how you adjust your midrange. Air/fuel screw is for the pilot, sometimes you can play with that and won't have to swap it. But its always good to have different jets to choose from.
Sent from my SPH-M950 using proboards
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gerry
Scoot Member
Posts: 21
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Post by gerry on Mar 27, 2013 5:49:28 GMT -5
Rite now my pilot is a 32 and main 79 I'm gunna switch out main to a 85 or so. My a/f screw is still capped I have yet to drill it out. Someone said to turn it about 2 1/2 turns out. Any ideas?
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Post by teddy554 on Mar 27, 2013 7:10:39 GMT -5
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gerry
Scoot Member
Posts: 21
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Post by gerry on Mar 28, 2013 14:03:15 GMT -5
When's you say turn idle air screw out 2 1/2 turns does that mean 2 1/2 full turns? If that question makes sence.
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Post by oldunclestevo on Mar 28, 2013 14:10:12 GMT -5
Yeah turn it all the way tight, then 2 1/2 loosened
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gerry
Scoot Member
Posts: 21
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Post by gerry on Mar 28, 2013 14:10:48 GMT -5
Ok thank you
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