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Was watching my old school small engine repair guy with a small flexible tube in his mouth. Asked what are you doing, he has a test hose connected to the gas inlet and holding the carb up to eye level. Stated he was setting float height. He said he was putting a small amount of air to see when his new needle and seat was installed to test float height. His original problem was a leaking carb. Better way than I had been doing it! 

Pictured on side of trans it says .12L   about 4oz us do not overfill, it does not go up to the fill hole.. Ask me how I know this. Engine Oil change .9L dry/ .8L oil change. Idle few min the recheck dip stick.
Plug Says NGK CR8E  Plug Gap .6 to .7mm   Engine oil 15w-40  Idle speed 1800rpm +/-  100rpm  Valve .12 mm +/- .02mm     87octane  Idle mixture non adjustable has blocking cap.
Front tire pressure: 25.4  rear tire 28.8 psi  Oil warning light will come on and stay on at oddball mileage 1050miles around 2570 and 3050 to remind you to change oil. Will edit to write how to clear these. Have pictures but newer cell phones wont let me take any smaller pix, not sure how to get them to upload. To reset trip hold both buttons at same time.
Belt 781-20-30 posted by another user works great Bando Kevlar amazon.  Here is a clip from OP on how to reset oil light, on the movie you must reset trip "B"  See below for procedure.

nantoniou
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Re: Reset oil service light
« Reply #5 on: August 30, 2017, 04:15:18 PM »
Quote
Dear friends,

It worked. The oil level was not the issue. The oil service reminder had to be reset.

Basically, holding the right button down for 5 seconds shifts from the odometer, then to the trip meter and then to the oil service meter. Once you are in the oil service meter, holding the left button for 5 seconds it does the job. And the same applies for the trip meter!!!

Thanks again!!!

Before and after leds

Completely cleaned the carb, every jet and spray nozzle blew carb cleaner to confirm passage. No difference still stumbled off idle. Replaced with Fresh NGK plug same thing! Removed 45 degree Bakelite plug connector with a NGK temp boot. Took right off 100% that one doesn't have the 55mm reach that factory one does and it tests 450 k ohms from where wire enters to where it clips onto plug, they have a Sheetmetal type screw in there trimmed 1/4 inch off wire recrewed new plug connection. will report back if it remains fixed. its 94 in Pennsylvania right now.
Factory plug mentioned under seat says NGK CR8E  gap .6mm to .7mm

Did you every get this problem taken care of
Had very similar problem adjusted valves and ran perfect. My second movie, has this exact problem intermittently. Runs stron, going to reclean pilot idle jets. Just at times right off of idle, when pulling into traffic!!
Thanks

Wow, no only does it save tons of amperage to run and charge the bike but VERY bright. Look up HS1 Hope this helps someone.  9.95$pair.
I swear the bike runs better. Why? More Volts/amps to CDI to run important stuff. Really and when I get back from a ride only takes few mins for my Schumacher trickle charger to go green!
This is what i got from amazon.
Specifications:

Model: H4/9003/HB2 , HS1
Bulb Base: P43t, PX43t
Functions: High/Low Beam
Operating voltage: DC 9-60V, AC 12-48V, fit for nearly all motors
LED chips: CSP
LED Power?25W per light
Lumen: 1800LM per light

?Nilight
Brand   ?Nilight
Model   ?20037H
Item Weight   ?3.2 ounces
Package Dimensions   ?4.49 x 4.41 x 2.17 inches
Country of Origin   ?China
Item model number   ?20037H
Exterior   ?Painted
Manufacturer Part Number   ?20037H
Cover Included   ?2PCS H4/HS1 LED Motorcycle Headlight Bulb
Power Saving: 75%
Color Temperature: 6000K
Lifespan: More than 30,000 Hours Operating Temperature: -104?~+ 185?
Shell Material: aviation aluminum 6063
Standard plug: polarity free, plug and play to H4, HS1 socket