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| Motorized Bicycle General Discussion Topics on bicycle engine kits, help articles, repair and modifications for your motorized bicycles |
Morini 5.8 upgrade! Carb problem...
Discussion at Motorized Bicycle Engine Kit Forum in the Motorized Bicycle General Discussion forum. Well I installed a 4 petal reed and Dellorto phbg ds "race carb" on my morini s6-t. ...  | 
08-19-2009, 06:12 PM
|  | Motorized Bicycle Elite Member | | Join Date: Jun 2008 Location: Lancaster, PA / Newark, DE
Posts: 155
| |  Morini 5.8 upgrade! Carb problem...
Well I installed a 4 petal reed and Dellorto phbg ds "race carb" on my morini s6-t. I looked online at the LEM RX3 (morini s6-c engine) forum and they use a 92 main jet, 48 pilot jet, 60 starter jet in their phbg's, but I cannot find what needle, atomizer, or slide the morini s6-s/c phbg utilizes... I have the above main jets and dellorto's factory installed slide (30), needle (w9), atomizer (262) but the engine will not run between 1/3 throttle to 1/2 throttle without the choke on and will not run past half throttle... it idles and pulls fine to 1/3 throttle... Does anyone with an s6-s/c know what the atomizer, needle, and slide their motor has? Thanks -Justin
__________________ 50cc Morini S6-T 5.8hp,
44 tooth sprocket, Early 1990's Diamondback Frame, 26" WTB FX28 Wheels w/ Shimano XT Hubs,
Dellorto PHBG Race Edition 19mm Carburetor, 4 Valve Reed Intake (combined adds ~2hp),
Homemade Expansion Chamber, Homemade Steel Pack Muffler, Homemade 1.6 gallon Rear Gas Tanks
TOP SPEED: 54.0 MPH (not gps tested yet)
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08-19-2009, 09:57 PM
| | Motorized Bicycle Elite Member | | Join Date: Jun 2008 Location: Lancaster, PA / Newark, DE
Posts: 155
| | Re: Morini 5.8 upgrade! Carb problem...
Problem solved! herdan sold me a phbg ds race carb for a 4 stroke! I soldered the atomizer holes shut and now runs great... Ill post the results after my next ride 
__________________ 50cc Morini S6-T 5.8hp,
44 tooth sprocket, Early 1990's Diamondback Frame, 26" WTB FX28 Wheels w/ Shimano XT Hubs,
Dellorto PHBG Race Edition 19mm Carburetor, 4 Valve Reed Intake (combined adds ~2hp),
Homemade Expansion Chamber, Homemade Steel Pack Muffler, Homemade 1.6 gallon Rear Gas Tanks
TOP SPEED: 54.0 MPH (not gps tested yet)
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08-20-2009, 01:03 AM
|  | Motorized Bicycle Member | | Join Date: Jun 2009 Location: Lancaster, PA
Posts: 46
| | Re: Morini 5.8 upgrade! Carb problem...
I'd like to see this morini setup of yours. Did you say your close to lampeter? I live very close to lampeter. |
08-20-2009, 01:19 AM
| | Motorized Bicycle Elite Member | | Join Date: Jun 2008 Location: Lancaster, PA / Newark, DE
Posts: 155
| | Re: Morini 5.8 upgrade! Carb problem...
Yea i live along lampeter road... I hear there is several people around here with bikes 
__________________ 50cc Morini S6-T 5.8hp,
44 tooth sprocket, Early 1990's Diamondback Frame, 26" WTB FX28 Wheels w/ Shimano XT Hubs,
Dellorto PHBG Race Edition 19mm Carburetor, 4 Valve Reed Intake (combined adds ~2hp),
Homemade Expansion Chamber, Homemade Steel Pack Muffler, Homemade 1.6 gallon Rear Gas Tanks
TOP SPEED: 54.0 MPH (not gps tested yet)
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08-20-2009, 09:21 AM
| | Motorized Bicycle Senior Member | | Join Date: Feb 2009 Location: Punta Gorda Florida
Posts: 84
| | Re: Morini 5.8 upgrade! Carb problem...
Please post ! thanks your results and your assessment of improved performance thanks
Gene |
11-02-2009, 03:34 PM
| | Motorized Bicycle Elite Member | | Join Date: Jun 2008 Location: Lancaster, PA / Newark, DE
Posts: 155
| | Re: Morini 5.8 upgrade! Carb problem...
Quote:
Originally Posted by GeneFiorot  Please post ! thanks your results and your assessment of improved performance thanks
Gene | Its amazing how busy we get with life sometimes... Anyway I noticed much faster acceleration and higher top speed, but it is running too rich down low (4 stroking) and too lean up high so im changing my slide and main jet accordingly. Parts should arrive this week from herdan... -Justin
__________________ 50cc Morini S6-T 5.8hp,
44 tooth sprocket, Early 1990's Diamondback Frame, 26" WTB FX28 Wheels w/ Shimano XT Hubs,
Dellorto PHBG Race Edition 19mm Carburetor, 4 Valve Reed Intake (combined adds ~2hp),
Homemade Expansion Chamber, Homemade Steel Pack Muffler, Homemade 1.6 gallon Rear Gas Tanks
TOP SPEED: 54.0 MPH (not gps tested yet)
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