At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.
I have a 1986 Suzuki ls 650, and the fuel mixture seems to be a problem.. The spark plug keeps getting fouled with only running every 100 miles.. as soon as I clean the black deposits off and reinsert it,, it runs fine for that short time.. and getting to the plug is not easy, with removing the seat and tank, etc.. do you know the proper fuel screw adjustment setting, or possible carburetor fix......???
Also, I have noticed that the fuel overflow will soak the ground when I stop at traffic lights..
Thanks..
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
fouling plugs means carbon across the electrode gap or carbon build up down the sides of the ceramic insulation allowing the current to short out rather than spark
,If that is what is happening , it is too rich or burning oil or the auto oil injector for the oil/fuel mixture- as in 2 stroke- is allowing excessive oil into the mixture
you have several options
have that mixture properly adjusted using less oil
check the carby float levels
use multipoint plugs ( same as is used on outboard engines and rotary engines)
or overhaul the engine with new rings and bearings
https://servicemanualsfreedownload.wordpress.com/.../suzuki-ls-650-sav... This Suzuki LS 650 Savage 1986-2009 Service Manual Free Download is a complete factory service and repair manual for your Suzuki LS 650 Savage.
Fouling of the spark plug makes the exhaust extremely hot due to the burning of the fuel mixture inside the exhaust pipe and the spark plug end turn to black, fouling of the spark plug may be due to too rich fuel mixture check the correct setting of the air valve.
Manufacturer (Make)
Suzuki
Model Name
LS 650 Savage
Year
1986
Category(class)
Cruiser / Chopper / Custom
Engine
Engine Capacity (Displacement)
652 ccm (39.79 cubic inches)
Engine Type
1 cylinder
Bore x Stroke
?94.0 mm x 94.0 mm (?3.7 inches x 3.7 inches)
Bore/Stroke Ratio
1
Stroke
4
Valves per Cylinder
4
Timing System
OHC
Cooling System
Air
Powertrain
Gearbox
4 speed
Chassis/Suspension/Brakes
Front Brakes
Single disc
Rear Brakes
Drum
Front Tire
100/90-19
Rear Tire
140/80-15
Dimensions
Curb Weight
171 kg (377 lb)
Fuel Capacity
11 litres (2.91 gallons)
Performance
Max Power
27.00 HP (19.7 kW) at 5200 RPM
Power/Weight Ratio
0.16 Hp/Kg
Top Speed
127 km/h (79mph)
Acceleration (dart, speedup) time 0-100 km/h
9.2 seconds
0-60 mph
8.7 seconds
1/4 mile
-
60 to 140 km/h, highest gear
- also heres a link of a almost complete tare down and rebuild
First put a nail in the plug boot and hold it close to the engine and crank it over to see if you have spark to the plug, if you do, pull the spark plug out and see if it's wet. If the plug is dry put about a teaspoon of gas in the plug hole and put it back together, it should run for a few seconds. If it does that you have a fuel supply problem. It may have a fuel shutoff valve inoperative, or a carburetor problem. If you have no spark to start with and the plug is wet with gas, you have an ignition problem. If the exhaust smells like gas you are probably getting lots of fuel, but the spark plug can tell us lots of things. A new spark plug probably won't hurt either. Jordan
have you tried setting the idle scerw on carb? if not that try the oil/air mixture screw on carb, i had a tzr that had same prob and it was down to setting up them 23 little screws
×