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Old 06-21-2014, 09:06 PM   #1
Madathlon   Madathlon is offline
 
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Changed jet and now bogs

Roketa MC-04-150Y GY6150QMJ

So I went and changed my Air filter to a hi-flow and installed a 115 main jet, now it bog if i throttle hard.



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Old 06-22-2014, 06:28 AM   #2
rks   rks is offline
 
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If your original setup had the normal 105 main jet, you might try a 110 with your new air filter. Bogging at higher throttle settings usually means too rich. Changing jets is always a trial and error deal. Believe the starting point I read somewhere was, 1 step up for intake (105 -110)...2 steps for intake and exhaust upgrade (105 -115).... For some reason the 115 works well in my scoot, even tho I only changed the intake side..Keep at it.....you'll get it right....Bob
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Old 06-22-2014, 12:25 PM   #3
Madathlon   Madathlon is offline
 
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Yepper, seems the 115 jet was to much for just an air-filter change. So next onto exhaust once I have the funds LOL



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Old 07-03-2014, 07:49 PM   #4
Madathlon   Madathlon is offline
 
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So I have rebuilt that carb and redid the new air filter so it is now pulling air from the outside of the scooter.



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Old 07-04-2014, 07:51 AM   #5
cheapeto   cheapeto is offline
 
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When I rejetted and then when I added a K&N filter, both times I had to readjust the the idle and air mixture screws.

A guy I was riding with a week or so ago, had his riding day ruined as when it started to rain very hard, his air filter sucked in a lot of water. His is mounted to come out right under his seat, on his gy6 150 Ruckus.



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Old 07-04-2014, 11:00 AM   #6
Madathlon   Madathlon is offline
 
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I figured that rain would be an issue, but the summer rain fall here is Zero. maybe see rain by Nov. And by then I will pick up a shielded air filter.

But while we do not get rain the dust can be really high and the road temp insanely high, so the higher I get the airfilter the cooler the air source.
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