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03-06-2014, 02:03 PM
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#1 |
 Join Date: Mar 2014
Posts: 4
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valve adjustment question
Hi , just adjusted my valves and scoot now has power and idles.....I set them to .05 mm......I was looking at the use manual under periodic maintenance and it says valve clearance is .012...... is valve clearance and valve adjustment settings the same thing or are they referrring to some other adjustment ?
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03-06-2014, 03:39 PM
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#2 |
 
Join Date: Sep 2012
Location: West Haven CT
Posts: 1,165
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Hi
Theres no set answer when it comes to valve adjustment settings I always go between .003 and .006 My last scoot ran fine at .003 int and .005 ex my present one the tao tao runs great at .004 int and .006 ex So if the setting works for your particular scoot then all is fine Take care and ride safely Yours Hank
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 "4wheels move the body 2 wheels move the soul"Duty, Honor, Country. Those three hallowed words reverently dictate what you ought to be, what you can be, what you will be. Douglas MacArthur |
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03-10-2014, 02:41 PM
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#5 |
 
Join Date: Jul 2011
Location: Connecticut
Posts: 493
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.003" to .005" (INCHES not MILIMETERS)
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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. |
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03-10-2014, 08:46 PM
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#6 | |
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Join Date: Jan 2010
Posts: 139
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Quote:
Really I'd go .006" exhaust and .005" intake. It's a little loose but better to have lightly ticking valves than have them go tight on you. Ticking valves are happy valves. |
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05-06-2014, 11:38 PM
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#7 |
Join Date: Apr 2014
Location: Las Vegas, NV
Posts: 32
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i downloaded the scootdawg scooter manual for 50cc scooter and it says .05 mm or .002 inches
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D_Whitney 50cc Taotao VIP 139qmb, 18mm carb |
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05-07-2014, 06:39 AM
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#8 | |
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Join Date: Jul 2011
Location: Connecticut
Posts: 493
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Quote:
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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. |
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08-27-2014, 04:15 PM
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#10 |
 
Join Date: Oct 2008
Location: Hyde Park, NY
Posts: 1,131
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On a 150cc it's best to set the intake at .004 inches and the exhaust at .005 inches. On a 50cc the stock setting is .002 inches but the hot setup is .003 inches.
If your valves sound loud at .005 inches it could be a slight mistake happened. I usually set the valves to clearance then rotate the engine until you're back at compression again and check them. I've found a slight difference from what I thought I set them at doing that. It's a good check.
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2008 Eagle Milano 150- 9,679 miles 2009 Honda Rebel 250- 10,434 miles 2009 CF Moto Fashion- 16,023 miles 2009 MC-114 50cc Cub Clone- 4,317 miles twowheeler.yolasite.com/ That's 30,049 China Scootin miles and Counting. |
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08-30-2014, 04:26 AM
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#12 |
Join Date: Feb 2014
Location: las vegas
Posts: 100
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The valve adjustment can be tricky on 150s, after adjusting turn the motor over a few times and re-check, and only spin the motor clockwise
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2012 Jonway X 44mm Hoca crank 52mm Hoca big bore MMS big valve head raised ports, polished, milled .023 Hoca 26mm carb NCY titanium valve springs NOS wet nitrous system Holley fuel pump MMS variator Naraku CDI HT coil 4' Wheelie bar MMG stainless slip-on exhaust NGK "11" spark plug UNI filter 2014 Icebear Maddog too much to list http://mmsscooters.com |
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