Carb sizing
Moderator: Moderator
Carb sizing
Had some issued with seizing in the past. AF24 with a 50mm bbk mini stroke crank 19mm carb ect. Could my carb be too small ? Want to start working on it again. Last time i thought i might have had an air leak at the oil pump shaft cause it was loose. Been running premix 32:1 felt like it was tuned pretty rich but seem to have killed it anyways. Thats why im thinking maybe this carb is too small?
1990 Honda Tact
AF24 swap - 50mm bbk, 44mm mini stroker crank, V8 pipe, custom seat cover, 6.9:1 gears
AF24 swap - 50mm bbk, 44mm mini stroker crank, V8 pipe, custom seat cover, 6.9:1 gears
- patthesoundguy
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Re: Carb sizing
Did you do plug chops with it, did you have a cylinder head temp gauge? Lots of people run 19mm carbs on 48mm kits on stuff so can't see being that much too small on a 50mm. I would think it would be fine as long as you can jet the idle pilot and main jet accordingly.
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Dude! Ya Can't Fix Stupid!
84 Spree stock
84 Spree Dio AF18E MHR Cylinder Arrow Pipe 28mm OKO
80 Express, 47mm DR BBKit, Weak Ends Intake, Boyesen Dual stage reeds, 19mm Delorto carb, MLM pipe
79 Express
85 Aero 80 stock
84 elite 125 stock
84 Spree stock
84 Spree Dio AF18E MHR Cylinder Arrow Pipe 28mm OKO
80 Express, 47mm DR BBKit, Weak Ends Intake, Boyesen Dual stage reeds, 19mm Delorto carb, MLM pipe
79 Express
85 Aero 80 stock
84 elite 125 stock
- Downsouthdio
- CB900F
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Re: Carb sizing
If it was mine id run at least a 24mm..but thats just me.. Did you match the boost port to the cylinder?
Honda super dio
Corsa
26mm
Sparrow
Corsa
26mm
Sparrow