Over the past 3 days I performed a service on my LIKE which has covered just under 5000 miles in the past 10 months.
Every part which I removed looked good enough to continue in service - nevertheless I replaced them with new OEM Kymco parts. I figure to do this once a year of ownership.
The CVT cover was removed - mating surfaces cleaned of old gasket. New gasket was not installed as I could not get it to stay in place.
The nuts on variator and clutch were replaced with new ($1 each) and torqued to specs with my new wrench and holding tool.
Variator pulley surfaces refreshed w/600 grit paper
Six 18x14x13gm Dr Pulley sliders installed, with three new Dr Pulley slide pieces.
Clutch contact pads (3) and clutch bell lightly de-glazed with sandpaper
Clutch shaft lubed
New OEM belt installed with "BANDO - KYMCO" lettering on top, reading L to R (no arrows on belt)
New air filter installed - mind the thread-like gasket in slot the cover fits in!)
Replaced NGK Iridium spark plug with new DENSO Iridium to see what happens.
Valves adjusted on over-night parked cold engine, to .oo4 inches (
(Found: ex. V @ .oo4 // intake V. @ .oo5)
Top valve gear oiled lightly w/heavier gear oil before re-assembly of valve cover (gasket renewed w/new)
Hand torqued the new Denso and the 4 valve cover bolts and the 8 CVT cover bolts - because I do not trust any torque wrench for these small parts. (40+ yrs of working on alloy VW engines)
All parts were OEM KYMCO parts.
(that black rubber plug in the fan cover which is removed to see the TDC mark - put it in hot water to make putting it back in easier! And no need to remove battery to do the valves and spark plug - just disconnect neg. term. & cover with a heavy cloth)
A point when checking valve lash: I
remove the .oo4 and .oo5 blades from my feeler set. It is easier for me to work with them as single blades. I slide the .oo4 in place, finger tighten the adjuster on to it. Tighten the set nut - and check again . If the .oo5 fits I re-do until only the .oo4 fits - then put them back in the set. This way I know the blade was laying dead flat when I check the 'feel'.
This Denso Iridium is the replacement for the stock NGK CR7HSA
I did find that the Denso gave me a very smooth idle - only 50 RPM or so above stock 1800 RPM -while the NGK CR7HIX Iridium was fully 100+ RPM over stock idle. Both Iridiums gave a smoother idle - but Denso is closer to stock idle speed. DENSO and NGK are both top drawer Japanese plugs IMHO.
Hardest part: Getting the belt cover off - has been on there 2 years since leaving China. And could not get the new cover gasket to stay in place while wrestling that cover with 20" breather hose back in there. Left it off - Ooty, a SYM dealer/mechanic in Calif. says he does not replace it on LIKEs....so, I'm good with that. This would be easy if the engine were in your lap - not in the scooter! And the crash bars presented a bit of hassle getting the slim side panel re-fitted.
Waiting for the new Dr Pulleys, clutch surfaces and belt to settle in. Good so far....
Bestem 929 w/lights install soon and 2 yr brake fluid replace soon.
Stig