Friday, 20 April 2012

Aprilia RS 125 34mm carb info RS125

7. needle valve and seat 
8.main jet anti surge washer
air fuel is the angled screw towards the air box and is a air screw (not the one with the spring on that is the idle screw) 
out =more air to fuel
in = less air to fuel
float height set at 14mm Dellorto suggest 11 mm 

The older bikes uses a  34mm  carb. The newer bikes have a 28mm carb. it was the pre 98 versions that were fitted with the 34mm carb ,  then after that unless modified it was a 28mm carb. 

for better mid range power, and a better top end   fit the 34mm carb.

All you have to do is get hold of a Dellorto VHSB 34MM and a new inlet manifold because the original will be to small and then fit it onto your bike. The standard air filter will still fit this new carb.

check running conditions inside engine after every job you do like this , plug chop .

155 main 
36 idle jet 
1.5 turns out on the air screw 
60 choke jet 
k57 needle top notch 
app 266 needle jet / atomiser 

You could just dump it all in your ultrasonic cleaner , get one

 they are excellent 

Aprilia RS 125 34mm carb info RS125

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