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You get better gains from this setup...................Way easier to tune your engine in lean and mean or safety rich just by turning two lil needles with a small screwdriver...............

 

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That manifold is for a 14/14mm Dell SHA copy carb. I have that carb on my 40cc Polini rep engine, the only adjustment is the main jet.
 

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Discussion Starter · #4 ·
Hmm I see, thanks guys.

Another question regarding air filters:

In terms of air filters which 'type' would be the best for my bike in terms of fit and performance wise?

1.UFO type?

2.


3.


4. Cone?


5.


Thanks!
 

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Hmm I see, thanks guys.

Another question regarding air filters:

In terms of air filters which 'type' would be the best for my bike in terms of fit and performance wise?

1.UFO type?

2.

3.

4. Cone?


5.


Thanks!
Ive tried them all and ill say that the UNI foam filter is THE BEST....Those other ones create too much of a restriction at WOT on my engines with all that wire and gauze that it makes my topend runs a bit squirrelly and problematic when plugs foul out.....................

 

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Foam is the best for sure, but you need to spray it with K&N air filter oil or some other brand. I only have one on my dirt bike, with the heavy foam outer cover. For $20 you can get an alum Walbro manifold for a 16mm 603 or 813 and it will bolt to the reed block you have already.
 
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