Post by skuttadawg on Aug 30, 2013 21:12:50 GMT -5
Does it bog then perform ? Are you bogging at top RPMs ? The only way to know or at least get an idea of the jet size is to remove the bowl and hope it is stamped with a number . Here is a link to help you see what size jets the carb uses as it has many to compare with www.jetsrus.com/FAQs/FAQ_identify_that_jet.htm A caliper is a must have to measure with . Harbor Freight has some elcheapos for 2 dollars and nicer ones as well . I bought a regular one and a digital one . The better ones are made of metal . Here is a plug chart to compare the color of your sparkplug tip with www.4secondsflat.com/plug_chart.html A jet kit is the way to go for fine tuning the carb instead of paying per jet on a multiple order . If it takes standard GY6 jets here is a kit www.partsforscooters.com/114-48-Main-Jet-Kit-CVK?sc=34&category=133078
On a 4T sometimes it will run better with the airbox instead of a Uni or K&N style airfilter . To get the most with a K&N and high end exhaust some porting of the head will have a higher flow rate .
Well first off is the air filter clean an oiled ? Unis and K&N needs a special oil and should not be used dry . Inspect the jets for any varnish or dirt which will clog them up . Any spray carb cleaner with work . I also like to use a stiff solid strand wire to poke through a jet .
Are you using the intake spacer ? I think MillSC said his scoot ran better without it when he put on a large carb and BBK kit . What size carb did it come with ?
Can you post a picture of the custom air intake mentioned in your signature ?
You are talking about your 150 correct ?
On a 4T sometimes it will run better with the airbox instead of a Uni or K&N style airfilter . To get the most with a K&N and high end exhaust some porting of the head will have a higher flow rate .
Well first off is the air filter clean an oiled ? Unis and K&N needs a special oil and should not be used dry . Inspect the jets for any varnish or dirt which will clog them up . Any spray carb cleaner with work . I also like to use a stiff solid strand wire to poke through a jet .
Are you using the intake spacer ? I think MillSC said his scoot ran better without it when he put on a large carb and BBK kit . What size carb did it come with ?
Can you post a picture of the custom air intake mentioned in your signature ?
You are talking about your 150 correct ?
i cruised on the a 50 mph highway today at half throttle running at 55 on the speedo
