I had a customer ask me the below question about his 150cc kart.
I didn't know what to tell him.
Help me understand this electrical system.......A 4 cycle engine should fire the plug every two revolutions. How can the above system detect Top Dead Center on the firing stroke?
that was a good question, i have pulled the plug out before and turn motor over and its looks as the plug fires constantly.
i think spool has answered the question in my mind.
pud _________________ 2006 sunl 150b
Dr. pulley 10 gram sliders, 1500 torque spring,39 tooth sprocket,2000lb winch, red neck uni filter, 125 main jet at 1,450 elevation, drilled out exhaust,ngk iridium plug,performance intake
trying a set of 10gram rollers now
I believe the GY6 is a "wasted spark" engine. The spark plug fires on both the compression stroke and the exhaust stroke.
Jamie
You're The Man Spool _________________ DRIVE IT LIKE YOU STOLE IT!!!!!!!!!
DAZON 150 SINGLE SEAT
2.5inch rear wheel spacers
1.5inch front wheel spacers
UNI, 130jet, BIGE built intake tube, custom built exhaust, HO coil, adjustable CDI, iridium plug
Spool is correct.When you look at the flywheel you have a pad tacked to it,every time that pad passes under the ign. trigger the plug will fire and this accures just before the piston reaches tdc on both intake and exhaust stroke. This is common with single cylinder engines. TOM _________________ GUNNUT
SYCARMS;Blade Karts,ATV's Parts,Service,Performance Parts & Accy's
Ok so if you crank the engine over and get No spark...what would cause that,besides the obvious. CDI,COIL,STARTER RELAY,ETC. We replaced them all and cannot get spark to the plug.
Let me start from the beginning. Monkeyjockey washed his buggy after our last ride. It started and ran fine.He put it away,then went to get out yesterday,and viola nothing. He brought it over to my house,pulled the plug and sure enough no spark.Put a new plug in it checked the spark and had very little,but it did spark. put it in the buggy and nothing. pulled the plug back out and no spark. Hook up a test light and a volt meter,and went to changing parts and testing wires. Got no power to CDI,coil,only the red wire going to or from regulator has power.yellow&pink wire from stator are dim and have low voltage(under 5 volts) this is while cranking over the engine. All the connections were checked & blown out.Starter relay was blown out(with air).Disconnected kill switch. All it does is turn over. Am I missing something?
The only part we did not replace was the stator,we did change the pickup coil(I had 1 left over from my old stator. Everything else we blew out with air. I'm sure it's something so obvious but I sure can't find it. If any one else has any ideas I would surely be interested.
Mike _________________ I'LL REST WHEN I'M DEAD!! TILL THEN I'LL PLAY WITH MY HAMMERHEAD 150 WITH 9GRAM ROLLERS,1500LB SPRING, BLISTER AND SANDMAN'S REVERSE BRACKETS, MRP RACING CLUTCH,AND ITP MUDLITES!
KANSAS GANG LET'S RIDE!
Articles
