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11-04-2013, 07:09 AM | #2 |
Join Date: Jul 2011
Location: Connecticut
Posts: 493
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That's not a "B" variant, the two variants are "P" and "B" and they read like this " 1B57" or "1P57". The "b" engine is also called an "extra-longcase" as it is significantly longer than a "longcase" to fit 16" wheels. The 'P' variant has larger valves and a taller head, resulting in nominal low-end power gains over a regular 157.
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2011 Roketa MC-23-150 4T 150cc 157 qmj 24mm carb w 115 main jet and paper cone air filter Manual petcock w Tygon fuel lines Scrappy Dog Scooters Retro-slash stainless straight-thru exhaust RED spring clutch Adjustable CDI (brand unknown, it's blue and red and works great!) KOSO high performance variator w 12g sliders Gates Powerlink 835-20-30 belt GPS verified 65mph on flats. |
05-01-2014, 07:27 PM | #4 |
Join Date: Feb 2014
Posts: 105
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This completely made my bike run like a Cadillac. Not one of the 80's Cadillac's, I'm talkin a post 2000 CTSV Cadillac. I think you'll figure the desmog out once you dig into it. It's pretty self explanatory honestly. If I recall you only have one vacuum line going to the charcoal canister. Remove that vacuum line and I think I put mine directly on my petcock. This leaves you with a fuel tank vent. Just vent to atmosphere with a fuel filter. I drilled a 3/8 hole and ran it out just before/ in front of my tail light and zip stripped it to the bottom of my book rack. It's not noticeable. The big hose on the valve cover gets capped/plugged. Then if I recall there is one more vacuum line that goes to the exhaust pipe crap. That get's capped. If I'm missing something somebody please jump in. It's been a few beers since my last DESMOG, but it was real easy. I do remember that. I went with all new US made hoses at the same time.
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