thanks bigjon.is this spring inside the carb? and is this a mod that alot of people have done? is their any side effects? what does this spring do? sorry for the list of questions, i just want to make sure i know what im doing. thanks again for the reply.
Yea you can get to it from the top ,its not a hard job,be sure to get the rubber gasket back on right,id go into details but i have to leave in about 10 minutes.Do a search on the subject and u should get plenty of info.If not i will be back later this afternoon.......bigjohn
Oh yea, be sure to put the cut end of the coil at the top.....
The carb used in the rincon is called a CV carb, which stands for constant velocity. This carb is an excellent choice for vehicles that are used for a wide choice of altitudes such as utility quads. It would be a poor choice for the sport quads, because they are not designed for performance.
The slide that controls the amount of air and fuel is hampered from opening by the spring that Bigjohn mentions. When the air pressure equalizes from top to bottom of the slide, the slide is then allowed to move up, giving a throttle response. This is why there is a slight hesitation. If the spring tension is lowered by either putting in a weaker spring or clipping the stock one down, it allows the slide to move up quicker for less hesitation. I haven't yet looked at my Rinny's slide, but suspect it is built the same as my XR slide. One of the tricks the XR crowd has learned, is to drill the equalization hole to a larger diameter (5/32") as well as decrease spring tension. This allows the air pressure to equalize faster allowing the slide to move quicker.
I need to look into this someday.
No negative effects that I am aware of, and if you wanted to return it to stock someday, just buy a new spring.