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Old 09-27-2014, 11:02 PM   #1
PANDEMIC   PANDEMIC is offline
 
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valves

The id tag on the scooter says valve clearance 0.06-0.08mm but doesn't list what the intake should be or the exhaust any idea what I should set them at...I've seen a lot of things said about the subject but I'm not sure what I should do since it doesn't list different measurements for both just lists a range...please help I need to get this thing back on the road asap



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Old 09-28-2014, 12:10 AM   #2
kz1000st   kz1000st is offline
 
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I gather by those specs it's a 50cc scooter. Those metric numbers translate to .003 inch. The clearance is the same for the intake and exhaust. If it was a 150cc engine it would be .004 intake, .005 exhaust.
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Old 09-28-2014, 02:08 PM   #3
PANDEMIC   PANDEMIC is offline
 
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It's 150cc



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Old 09-28-2014, 03:51 PM   #4
kz1000st   kz1000st is offline
 
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Definitely .004 inch intake, .005 exhaust then.
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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
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That's 30,049 China Scootin miles and Counting.
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Old 09-29-2014, 11:25 AM   #5
RetroBrian   RetroBrian is offline
 
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I just did mine to .005



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Old 09-30-2014, 09:00 PM   #6
PANDEMIC   PANDEMIC is offline
 
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OK I adjusted them like u said but before I put everything back together I just want to stop being confused..The id tag says .06-.08.....that's one hell of a large gap...I would have to add my .025+.024+.011=.06 just to get that gap...that's a far cry from the .004 and .005...I would show u a pic of the id tag but can't figure out how to attach anything
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Old 09-30-2014, 09:39 PM   #7
kz1000st   kz1000st is offline
 
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A millimeter is .03937 of an inch. When you multiply that by .06 it equals .0023 inches. Multiply .08 by that it equals .00314. When you see numbers like .06 instead of .002 for a valve gap you know it's a metric number. A 150cc should have a metric number like .11 or thereabouts for a number around .004 inch.


.
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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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Old 09-30-2014, 10:53 PM   #8
PANDEMIC   PANDEMIC is offline
 
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OK well seeing how math was not my best subject I'll take your word for it...now one more thing what would the spark plug gap be the id tag says 0.4-0.6mm...The closest I come up with is .406 mm = .016 inch is that correct
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Old 09-30-2014, 10:54 PM   #9
PANDEMIC   PANDEMIC is offline
 
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If those numbers r correct than what would be the best gap based on ur experience
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Old 10-01-2014, 07:12 AM   #10
kz1000st   kz1000st is offline
 
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The valves work best if the intake is set at .004 inch on the intake (0.1016 mm.) and .005 inch (0.127 mm.) on the exhaust. Originally everybody went with .004 for both but experience taught that setting the exhaust at .005 was better in the long run.
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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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Old 10-01-2014, 10:21 AM   #11
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.016" is not enough spark plug gap. Most people seem to prefer the .030" area, some a bit more...and some (like me) a bit less. I run mine at .025"-.027"....Scoot has 5300 miles on it, has never failed to start, has never left me on the side of the road, gets outstanding gas mileage, and climbs hills like a mountain goat. Picture of plug in my profile, album section....this OEM plug is still in scoot, also running original cdi and coil...all these high performance, racing, etc, electrical components, are a waste of money in my book.
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Old 10-01-2014, 12:11 PM   #12
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I'm such an idiot. I didn't read all the way up. Yes, .028 inch is where I set my spark plugs. With CDI ignition just being close to that is good enough.
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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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Old 10-02-2014, 08:40 AM   #13
blueboy5000   blueboy5000 is offline
 
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Plug gap= .25

Valve intake= .004 (150cc) .003 (50cc)

Valve exhaust=.005 (150cc) .004 (50cc)

Now ignore what your owners manual or stickers on bike say, these are the correct gaps.
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Old 10-02-2014, 08:42 PM   #14
kz1000st   kz1000st is offline
 
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You mean spark plug gap of .025 Big Guy.
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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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Old 10-02-2014, 08:51 PM   #15
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Quote:
Originally Posted by blueboy5000 View Post
Plug gap= .25

Valve intake= .004 (150cc) .003 (50cc)

Valve exhaust=.005 (150cc) .004 (50cc)

Now ignore what your owners manual or stickers on bike say, these are the correct gaps.
Blueboy....please proof read the numbers you listed, and correct them.

It may help a beginner to know the unit of measurement too. I know what you meant, but he may not.

PS: KZ types faster than I do...sorry
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