Crazy Wayne Treats Rock's
Last Login:
January 1, 2012
Mopeds:
- 2004 Tomos Cross 50 Senior
- 1982 Honda Express II NA50
- 1980 General 5 Star
- 1980 Batavus Starflite
- 1979 Motobecane 50V
- 1978 Honda PA50 II
- 1978 Honda PA50 II
- 1978 Motron Medalist
- 1978 Cimatti Twin Sport
- 1978 Puch Maxi Sport LS-2 Speed
- 1977 Cimatti City Bike
- 1959 Puch
- Peugeot TSM
City:
Oakland
State:
California
Country:
United States
Squash band's
http://www.mopedarmy.com/forums/discuss/7/207556/207556/
http://www.mopedriders.org/article_cat.php?fldAuto=2
Center bleed pipe's.
http://www.mopedarmy.com/forums/read.php?7,2110313
Tune it in, do some porting, put a kit & pipe on it, look in the WIKI, read lot's of old post and links to see what worked for others.
Plug chips a colder plug to show color faster then a hotter plug and you chop it so it has more red than tan in the color and it will be close to 2 jet sizes rich. http://www.dansmc.com/Spark_Plugs/Spark_Plugs_catalog.html
Now go one plug hotter and your plug will read/be leaner, and safe, if the plug is not to hot for the compression and or peak RPM power.
I like running a pinch cool and rich on my plug chops, so if my engine get's hot on a long hill etc I'm tuned so it wont smear & seize.
Best spark plugs with points, NGK BU8H #6431.
And this one is special for low power CDI's, NGK BUZ8H #7447. No more dead plug at hi rpm's.
Timing with points, for the 64 cc polini kits, I fond the sweet spot heat range for timing Is 17.5deg's= 1.25mm or 17.5mm of flywheel rotation BTDC to 14deg's= 0.79mm or 14mm of flywheel rotation BTDC,
And K-star's and other kits any thing 19deg's= 1.44mm or 19mm of flywheel rotation BTDC to 16deg's= 1.03mm or 16mm of flywheel rotation BTDC.
Timing CDI i fond the sweet spot heat range for timing these trets CDI's timing for the 64 cc polini kits
Is 17.5deg's= 1.25mm or 17.5mm of flywheel rotation BTDC to 14deg's= 0.79mm or 14mm of flywheel rotation BTDC for
And any thing under 20deg's= 1.60mm or 20mm of flywheel rotation BTDC to 16deg's= 1.03mm or 16mm of flywheel rotation BTDC.
For most kited motors ruining under 12.2:1 compression & 11,500rpm's.
Timing for lowend will kill at hi rpm with heat every time.
Crankshaft timing conversion chart,
Degs to piston travel for puch E-50 & ZA-50
14 degs BTDC=0.789 mm of piston down BTDC.
15 degs BTDC=0.905 mm of piston down BTDC.
16 degs BTDC=1.028 mm of piston down BTDC.
17 degs BTDC=1.159 mm of piston down BTDC.
18 degs BTDC=1.298 mm of piston down BTDC.
19 degs BTDC=1.444 mm of piston down BTDC.
20 degs BTDC=1.598 mm of piston down BTDC.
21 degs BTDC=1.758 mm of piston down BTDC.
19mm Phbg piston port spec most tune in with the 40 on the slide with a AU262 atomizer some use the AU260, and W9 some use W7-W3. Or a 30 slide, with a AU260 atomizer, and W9 some use W7-W3.
Start with the plot/idle jet adjustment screw out 1-1/2 turns,
pilot jets range 38 to 48, If rich at idle with the plot/idle jet adjustment screw out 3/4 of a turn or less, install a leaner pilot jet, If a 38 pilot is rich install a leaner/smaller number atomizer or a higher number slide and install a 42 to 45 plot/idle jet with the plot/idle jet adjustment screw out 1-1/2 turns, The rang of plot/idle jet adjustment screw is 2-3/4 to 3/4 turn's out.
And lower the clip 1 or 2 notches.
Install a higher number plot/idle jet if lean at 2-1/2 or more turns out on the adjustment screw, if plot/idle jet is over 50 install a richer/bigger number atomizer or a lower number slide and install a 42 to 45 plot/idle jet with the plot/idle jet adjustment screw out 1-1/2 turns,
NOTE= Slide and Atomizer will dictate/control/change the range of the plot/idle jet.
http://www.mopedarmy.com/forums/discuss/7/207556/207556/
http://www.mopedriders.org/article_cat.php?fldAuto=2
Center bleed pipe's.
http://www.mopedarmy.com/forums/read.php?7,2110313
Tune it in, do some porting, put a kit & pipe on it, look in the WIKI, read lot's of old post and links to see what worked for others.
Plug chips a colder plug to show color faster then a hotter plug and you chop it so it has more red than tan in the color and it will be close to 2 jet sizes rich. http://www.dansmc.com/Spark_Plugs/Spark_Plugs_catalog.html
Now go one plug hotter and your plug will read/be leaner, and safe, if the plug is not to hot for the compression and or peak RPM power.
I like running a pinch cool and rich on my plug chops, so if my engine get's hot on a long hill etc I'm tuned so it wont smear & seize.
Best spark plugs with points, NGK BU8H #6431.
And this one is special for low power CDI's, NGK BUZ8H #7447. No more dead plug at hi rpm's.
Timing with points, for the 64 cc polini kits, I fond the sweet spot heat range for timing Is 17.5deg's= 1.25mm or 17.5mm of flywheel rotation BTDC to 14deg's= 0.79mm or 14mm of flywheel rotation BTDC,
And K-star's and other kits any thing 19deg's= 1.44mm or 19mm of flywheel rotation BTDC to 16deg's= 1.03mm or 16mm of flywheel rotation BTDC.
Timing CDI i fond the sweet spot heat range for timing these trets CDI's timing for the 64 cc polini kits
Is 17.5deg's= 1.25mm or 17.5mm of flywheel rotation BTDC to 14deg's= 0.79mm or 14mm of flywheel rotation BTDC for
And any thing under 20deg's= 1.60mm or 20mm of flywheel rotation BTDC to 16deg's= 1.03mm or 16mm of flywheel rotation BTDC.
For most kited motors ruining under 12.2:1 compression & 11,500rpm's.
Timing for lowend will kill at hi rpm with heat every time.
Crankshaft timing conversion chart,
Degs to piston travel for puch E-50 & ZA-50
14 degs BTDC=0.789 mm of piston down BTDC.
15 degs BTDC=0.905 mm of piston down BTDC.
16 degs BTDC=1.028 mm of piston down BTDC.
17 degs BTDC=1.159 mm of piston down BTDC.
18 degs BTDC=1.298 mm of piston down BTDC.
19 degs BTDC=1.444 mm of piston down BTDC.
20 degs BTDC=1.598 mm of piston down BTDC.
21 degs BTDC=1.758 mm of piston down BTDC.
19mm Phbg piston port spec most tune in with the 40 on the slide with a AU262 atomizer some use the AU260, and W9 some use W7-W3. Or a 30 slide, with a AU260 atomizer, and W9 some use W7-W3.
Start with the plot/idle jet adjustment screw out 1-1/2 turns,
pilot jets range 38 to 48, If rich at idle with the plot/idle jet adjustment screw out 3/4 of a turn or less, install a leaner pilot jet, If a 38 pilot is rich install a leaner/smaller number atomizer or a higher number slide and install a 42 to 45 plot/idle jet with the plot/idle jet adjustment screw out 1-1/2 turns, The rang of plot/idle jet adjustment screw is 2-3/4 to 3/4 turn's out.
And lower the clip 1 or 2 notches.
Install a higher number plot/idle jet if lean at 2-1/2 or more turns out on the adjustment screw, if plot/idle jet is over 50 install a richer/bigger number atomizer or a lower number slide and install a 42 to 45 plot/idle jet with the plot/idle jet adjustment screw out 1-1/2 turns,
NOTE= Slide and Atomizer will dictate/control/change the range of the plot/idle jet.
