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Post by Deleted on Jun 26, 2013 17:15:47 GMT -5
Stock scoots runs lean with the 75 jet, moderately rich with  , but when i put in a 80 it cuts out about half throttle. Should be ideal with an 80 but dont understand what the issue is  |
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Post by jerseyboy on Jun 26, 2013 17:18:36 GMT -5
Whats the plug look like?
Did it run good with the stock jet?
Are there any mods,and what kind?
When it bogs try to put a sock or restrict the air box a little if it gets worse,,think your too rich..if it gets better you need to up jet.
Make sure the bog isn't related to a fuel delivery issue like the pet cock or tank vent either...
Gotta play around bro and give us more info...
Tom
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Post by Deleted on Jun 26, 2013 17:36:13 GMT -5
Plug slightly black on the bottom of the base and about 3 threads up. The center kinda tan colored. Ran ok with stock 75 but was too lean from the factory so i ordered a new carb and it happened to come with an jet. That also ran fine except rich. In the mornings cold start its very rich until it warms up then runs great. So i ordered an 80 to split the difference and its either lean or rich...cant tell. I put the back in and runs fine. i have no mods. |
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Post by devo344a on Jun 26, 2013 18:58:09 GMT -5
If it runs fine and not lean leave it alone and ride
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Post by dude on Jun 26, 2013 21:22:41 GMT -5
The needle jet maybe different than your stock carb. And or set at a different height. Reset your a/f also.
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Post by earlwb on Jun 27, 2013 7:16:48 GMT -5
The "80" jet may not really be for your carb but a different one, or it was mislabeled. But the carb you got may be for a different engine (larger displacement) and is setup for it. The CV carbs have a piston inside that moves up and down with demand, in the middle of the piston is a tapered needle and it may be setup differently. The carb may also have a larger inside bore in it too. You can also determine the hole size for a 80 jet and get a drill bit to match and drill out the 75 jet carefully. But if the jet is working, I would likely just go with it instead and not bother trying to split the difference. |
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Post by Deleted on Jun 27, 2013 8:53:01 GMT -5
Are needles interchangeable?
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Post by earlwb on Jun 27, 2013 9:36:01 GMT -5
Usually they are, you can compare the two needles to each other. MArk one so you know which carb it came from before you pull them out to look. They usually are the same needle, but they could be different with a different length and or taper to them. Some needles might even have different grooves on the retainer end too.
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Post by devo344a on Jun 27, 2013 13:20:58 GMT -5
DX I just got done messing with mine I had 3 jets and I just drilled them out I got luckey the first one was to big the scoot ran fine to about 25mph and bogged wouldnt pickup the next one was just right the smallest bit i had i cant even read the drill size on it and it worked perfect the scoot has never ran better
JUST DUMB LUCK
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, but when i put in a 80 it cuts out about half throttle. Should be ideal with an 80 but dont understand what the issue is 
