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now what?
by: sailracer - Jun 5, 2013 12:22:01 GMT -5
Post by sailracer on Jun 5, 2013 12:22:01 GMT -5
I just found out my motor and carb are being shipped from scrappydog's today. When I chose this setup, I spoke with MO down there, and he gave it a thumbs up. The 100cc GY6/139qmb complete long case engine(50mm bore) AND the 23mm carb. Now ,i;m being advised not to install that carb without a high performance head/valves  Keeping my original carb with original jets is no good either.What would you suggest  |
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now what?
by: devo344a - Jun 5, 2013 12:29:04 GMT -5
Post by devo344a on Jun 5, 2013 12:29:04 GMT -5
I had the 20mm from scrappy with my 100cc BBK and it ran fine I didnt put anything differant in it just the way it came
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now what?
by: sailracer - Jun 5, 2013 12:32:56 GMT -5
Post by sailracer on Jun 5, 2013 12:32:56 GMT -5
Yeah this one is the 23. some say it's too big unless you have a hi perf. head and valves. at any rate, i can't use my original without upjetting. I think the 23 will be ok, others say no  It's still going to be a bigger displacement engine, (83 cc or so)therefore "breathe" more air. So,here, in the real world,(where people have "hands-on experience, installing and trying out these things), I need help in deciding to go with it, as is, or what jets to put in the original  |
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now what?
by: devo344a - Jun 5, 2013 14:41:49 GMT -5
Post by devo344a on Jun 5, 2013 14:41:49 GMT -5
The 23 will be ok I would try it and the worst is to have to use smaller jets.
Most of the stock carbs have the screws ground flush with the bowel and you have to drill out the Idle adj screw so you will be ahead you wont have to mess with the screws and stuff on the stock one
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Sophomore Rider
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now what?
by: indymoped - Jun 5, 2013 22:16:20 GMT -5
Post by indymoped on Jun 5, 2013 22:16:20 GMT -5
Wouldn't you need a bigger jet to run a 23mm carb to keep the a/f ratio right? More air can get in...so you need to get more fuel in?
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now what?
by: sailracer - Jun 6, 2013 7:59:00 GMT -5
Post by sailracer on Jun 6, 2013 7:59:00 GMT -5
I don't think so ,as it is already a performance carb. That's why they get 80 bucks for it.
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jet
