Honda Spree and Elite 50 Forums

I am running caster 927 at 40 to 1.
my weights are 7g and 7.5g (3 each)
my jets is at 52 pilot (1.75 turn out for the mixture screw)
my main jet is a 130.
clutch is a kelly med with the green springs
the center spring is 1500.

Thanks everyone.
Just figured it out. (after 3 weeks).
The compresson is low when it warms up. (down to 120psi)
I was checking compresson when the engine was cold.
checked a know good bike with the same engine and he had 140 psi.
Time for a new piston!!!!

Thanks again for the help.

when at full throttle or 1/2 throttle very little differance. There is more noise at full but dont have the power like before. When I first installed all the parts. I would go about 60mph. now I am lucky to get to 52-53mph.

In need of the experts help.
I have the following parts on a arnada (sym)
72cc corsa bore
ct crome mani
28 kehin carb (with air box)
v8 pipe
7.4 to 1 gears
I have checked compression (135psi).
I have replaced the ign coil.
changed jets over and over.
The bike runs smooth, idle great, and get good ...

Just wanted to ask the experts. how much differance is there in a 24mm carb and a 28mm carb? This would be on a 72cc honda motor. Looking at top end speed. how much faster would it be?

Thanks in advance

swaped out my mirrors with a friends one and re-raced. back into the lead, but with the small mirrors i can only see my arms. I say if your going to put the small mirrors just take them off....lol ( I am just going to leave the big mirrors, for now)

Just wondering if mirrors have that much drag. A buddy of mine took off his mirrors and is now able to pass me. (top speed). I used to edge him when he had mirrors. Is there any low drag mirrors?

Here is the update. Wife just bought me a corsa kit. Going to save the contessa for a spare. Still braking in the motor but aready feel a differance. The sound is deeper and revs up faster. Can't wait till I can top it out. Now I need to beg the wife for the pg pipe.

Thanks for all the info. It really helps.
Just waiting for the ok from the wife!!!!!!

Right now I am able to get to 60mph. (on a flat) it take a while though.
I was thinking of another pipe but worried of the noise.

I ride to work every day to town so I am tring to keep the noise down. (running a air box) I was thinking of the bigger carb and bore, but kinda worried about a louder pipe. Would the pipe make a big difference?

Thanks again

I have a great bike but would like to get some more power out of it.
I have a Arnada with the following mods
-72cc contessa bore
-7.9 to 1 gears
-24 carb
-ct crome mani
-typhoon pipe
-oil plug (pre mix at 32 to 1)

Here is the question. Would changing the bore from a contessa to a corsa make a ...