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Re: low compression after a overhaul???
Hi and welcome to FixYa,
Initially, check: presence of spark at the sparkplug tip/electrode; fuel entering the combustion chamber. You can check this by removing the air filter assembly and covering the mouth of the carb with the palm of your hand; it may also just be that the combustion chamber has too much 2T oil, try replacing you sparkplug.
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Low compression is typically a sign of worn piston rings. The fix is very expensive - overhaul of the engine. You may find it is more economical to replace your motorcycle.
Before you go over the edge, I suggest you have your engine looked at by a professional, who can ascertain if in fact your compression is low and will have a prety good guess at the cause and the repairs required.
You can probably get some more miles from your motorcycle by using heavier grade oil ... if it is worn rings, it will ONLY get worse, it will not improve.
The Honda Splendor has a 4 stroke engine and can have worn valve seals or rings. If the engine smokes while riding it may be time for a top end re-build. You should complete a compression test to evaluate the condition of the piston and valves. If the compression is low ( under 120 psi ) it is time for a top end re-build.
Squirt oil in your cylinders and recheck the compression. If your compression goes up you have bad rings. Check your valve tolerances to make sure that the valves are not being held open only because they are adjusted too tight. This would cause compression loss. If the valves were bent because the timing belts slipped or broke You may have to replace the valves to get compression back up. If the engine has low compression because there are 300,000 miles on the bike you may just need a complete overhaul or a new motorcycle. If you had at least 110 compression on all cylinders and they were all with in 10 pounds of each other you could still be riding on low octane fuel.
65PSI is way to low. It probably won’t run at 88PSI either. Put a small drop of engine oil (20w50 or similar) into the cylinder and do the compression test again. If there is a big improvement in compression it means the piston rings are worn and you will have to do a top-end overhaul. As a very rough guide you need 150PSI for a 4 stroke engine and about 120PSI for a 2 stroke engine.
Honda XL 125R Paris Dakar
Air cooled, four stroke, single cylinder, OHC, 2 valves per cylinder
Bore x Stroke
56.5 x 49.5 mm
Ignition / Starting
CDI / kick
12 hp 8.7 kW @ 9000 rpm
10 Nm @ 8000 rpm
Transmission / Drive
6 Speed / chain
I do not recommend this bike. Honda, Yamaha, Suzuki are good choices. You can find a dealer all over the world. The bike is junk the first time a part fails if you can't get parts and service. Seen any dealers in your city? The bike is made in Taiwan. Here's the info you asked for, even though I advise against it.
Top speed 65 to 70 mph
Overall Height1170 mm (46.1 inches)Overall Width880 mm (34.6 inches)Overall length2110 mm (83.1 inches)Seat height810 mm (31.9 inches)Wheelbase1375 mm (54.1 inches)Fuel capacity - reserve12 l (3.2 gallon US)Dry weight126 kg (277.8 pounds)Enduro-OffroadModelVR 150X
ENGINE Type149 cc, air cooled, single cylinder, 4-strokeStandard compression 145 lbsPower13.5 hp (10.1 kW) @ 8300 rpmBore x stroke (mm)62 mm x 49.5 mmCompression ratio9.6:1Valves2 valves per cylinderIgnitionCDITorque12.4 Nm (9.1 ft. lbs) @ 8300 rpmHow about a top rating on this answer. Thanks!