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Enduro Intake/Carburetion - 2 stroke Jetting, Reeds, Air Filters, etc. |
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Spark plug color good, bad or what?!!
Hi guys!!
2013 gasgas 300R AS2 carburetor Needle & notch =NECW #2 Main jet = 172 Pilot jet = 42 Air screw setting = 2 1/2 Throttle valve:7 Fuel: 98oct Oil:MOTOREX CROSS POWER 2T at 1.5% Elevation: Sea level to 500m Temp C?: Summer 20 to 35/ Winter 0 to 15 Been trying to get the best result without changing a lot. Most likely i should put a 40 PJ, but maybe i can manage with the 42PJ since i dont ride a lot with hot weather.... I have been using mostly 95oct... but decided to try 98oct on the last couple rides with a new spark plug. Before with 95oct plug was all black but now, spark plug color is a dark brown, (i upload image) and porcelain is gray. I know that dark brown is a better color, but what about that gray porcelain?!?! Im still learning about jetting, so better to ask... P_20190804_184715.jpg Any thoughts on this will be appreciate!! Last edited by Jinx_pt; 08-06-2019 at 02:38 PM. |
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Quote:
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Plug readings are hit and miss,if you tool around trials like and pull plug it will look quite different to a wot hot run plug.Try it...the plug indicates relative to how you were last riding.
That said,assuming thats a fair indicator of your typical riding it looks ok,leanish maybe,the NEDW#2 would be 1/2 clip richer= NECW#2.5 Most important is how it feels at different throttle Also 1.5% oil ratio seems light to me I would give NEDW#2 a try first,half a clip can be significant. Disclaimer...there are far more knowledgeable jetters on this forum by miles than me lol if im lucky one of them will agree with me
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2013 ec200r |
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Here's the jetting guide I follow (from KDXrider.net). It has worked great for me jetting any brand of bike.
Quote:
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WildAzzRacing YouTube channel Trail Riders of Southern AZ club AZ State Parks OHV Ambassador '11 EC250R '98 KDX220 |
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Sorry, i forgot..... going to edit post!
It?s a 2013 gasgas 300R Quote:
Me and lost of friends use 1.5% oil ratio for years and no problems. Im almost with 100hours in this piston and ZERO problems. We dont stay a lot of time WOT... we ride in a hard enduro terrain, so its pretty much 2?/3? gear all the time! Thank you all for the replay!! |
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