Spree bbk smoking

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Ratrod
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Spree bbk smoking

Post by Ratrod »

I have a 1987 Honda spree 48 mm bbk 21 mm pwk carb. Was using the oil pump plus premix. Now I'm running 32:1 premix with yamalube r. Smokes alot at idle . I started jetting down the pilot jet it was a 42 now down to a 38. At each size smaller it smoked less. But still smokes and will stall out when I throttle down whe riding. Also my clip is all the way up and the idle speed screw for the slide is out. So it's idle is running on the pilot jet only.
The main is a 95 jet
RATROD
86 stock spree
87 spree 48 bbk, carb, pipe
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Bear45-70
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Re: Spree bbk smoking

Post by Bear45-70 »

That's because with the pump and your premix you are running at least 24 to 1. Back off on the oil in the tank by half.
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Re: Spree bbk smoking

Post by Ratrod »

I took the pump off it's just straight premix..
RATROD
86 stock spree
87 spree 48 bbk, carb, pipe
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Bear45-70
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Re: Spree bbk smoking

Post by Bear45-70 »

I would then say that 32 to 1 smokes a lot compared to using the pump and that Yamahahah lube is smokie.
Bear 45/70
Image

'83 Aero 80 X 3
'84 Aero 80 X 3

'85 Aero 80
'84 Aero 125 X 2
'84 Aero 125
'84 Aero 125 X 2
'85 Aero 50
'85 Spree
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Re: Spree bbk smoking

Post by Ratrod »

So I should just tune it up and not worry about the smoke.Do you think the 38 pilot jet is too small? Or maybe try another mix. When I let off the throttle it will stall out not sure if it's lean or rich .
RATROD
86 stock spree
87 spree 48 bbk, carb, pipe
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