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In Kentucky I pay $105.00 a year for insurance on my 150cc + tax / tags.
Insurance = 29 cents a day / $8.75 a month.
Not bad.

Given the economy and gas prices, more people may start riding scooters. More people riding scooters and paying taxes and insurance means a bigger voice for scooter riders.

Enough people complain and they might change those electromagnetic coils in the pavements at street lights so they will actually change when my scooter is at the light.

Alleyoop---> Thanks,

Are there any "BEWARE" / "LOOK OUT FOR" info upfront with my install plans..... Like timing mods / valve spec changes, etc.

My upgrade will consist of the A9 cam and Big Port Valve Head with stainless steel valves and High Compression Valve Springs Rated to 12,000 RPM ----- this all on a stock cylinder. gy6150

Money -

Items I purchase for the upgrade include:
1.) big port cylinder head
2.) valve cover (my old one was EGR / P.A.I.R)
3.) A9 Camshaft
4.) Performance intake 30mm
5.) high flow exhaust

This cost a bit of money !

Sometime back I got a 26mm cab with the pumper on it - plan on up-jetting that.

Also, I have changed the final gears, performance coil / CDI and changed the air filter to uni style.

Cylinder head temperature gauge helps me monitor / gauge the air - fuel mix..... temps average 260 - 300 deg pending ambient temp and cruising speed.

I don't race - I just want a smooth running / cool temperature / top speed that keeps up well with traffic / and good pep when accelerating.... can't find "CERAMIC" rear "shoes"..... have new CERAMIC front pads though.

Going faster is a bad idea ...... Unless you can stop faster.

If I install a "Big Port Valve Head" for an upgrade on my gy6150 (stock cylinder - NO bbk) would I need a bigger tailpipe to run to the muffler ?
I ordered a performance muffler but haven't really planned for the tailpipe.... because I do not know if I need a bigger tail pipe. Do I

This is my 3rd cylinder head change - long story short.

Looking at upgrading to a High Performance Big Port Valve Head - Sooooooo, the questions and my
bike specs ar as follows:

QUESTIONS :

whats the ultimate cost to me ?

1.) GY6 150cc High Performance Big Port Valve Head = $73.00
2.) 8MM EXHAUST STUDS AND NUTS = $8.00
***SO FAR.

However, will I need :
1.) Bigger carb = $??.??
2.) Bigger intake port = $??.??
3.) Bigger - performance exhaust = $??.??
4.) performance camshaft (A8 or A9) = $??.??
If a new cam shaft what about a new chain = $??.??

Other unknown important info :
1.) Valve gap - in & out

MY EXISTING SPECS:

VARIATOR : MOTORIO DUAL RAMP (SHORT & LONG RAMPS) 115 MM FACE PLATE & FAN
VARIATOR WEIGHT(S) **[SLIDERS] 13 (IN "L" RAMP") / 17 GRAM (IN "S" RAMP)
FINAL GEARS : 15/36 -- ( ORIGINAL GEAR RATIO WAS ......13 / 40 ) - I DID NOT KNOW ORIGINAL PRIOR TO ORDERING NEW GEARS
CLUTCH : STOCK WITH 1500 RPM CONTRA / CLUTCH SHOE SPRINGS ARE STOCK
CDI : UPGRADED TO A RACING WITH NO REV LIMIT
IGNITION COIL : UP GRADED TO A PERFORMANCE COIL
CARBURATOR : STOCK / PDJ24 - 24MM ( JETS ; STOCK -- FLOAT LEVEL CHANGED TO XXMM)
FUEL PUMP DUAL OUTPUT - VACUUM ACTUATED (LISTED AS FUEL PUMP FOR JET SKIES TO FEED 4 CARBS)
AIR SUPPLY : AIR BOX REMOVED AND REPLACED WITH UNI FILTER / RACING STYLE
P.A.I.R. / EGR REMOVED AND BLOCK OFF PLATE INSTALLED
BATTERY : DUAL "AGM" BATTERIES TIED IN PARRELELLE ( ONE 7 AMPH / ONE 9 AMPH ) = 8 AMP AVG
REAR TIRE : (ORINAL WORE FLAT IN 6,000 MILES - WAS FAULTY / UNBALLANCED / LEAKED ) REPLACED WITH
SHINKO SR429 - Tire Size: 130/60-13 - Position: Front/Rear, Tire Ply: 4, Speed Rating: L (TREAD DEPTH = 5.7MM = .224")
VACUUM LINES REPLACE WITH ALL AMERICAN THICK WALLED HOSE
FUEL LINES REPLACE WITH ALL AMERICAN THICK WALLED HOSE

Any one had any experience(s) with the 3 ground strap spark plugs?
Better or worse performance / ground straps breaking off / issues gapping, etc ?
image here:
3 ground spark plug

Thanks

alleyoop...

I found one at this link ,but this site will not let me post the link whats up with that

also, what is TVANCMAN ?