How to disassemble a 1988 Tomos A3?
Unscrew all three engine screws with two 13mm wrenches (fig 12) Hold the engine by hand. Extract top screw (3) and remove the engine out of the frame (fig 13) Take the intake silencer out of the frame (fig 14) 8 ENGINE DISASSEMBLY Place the engine on the repair stand (special tool). Remove the carburetor and spark plug (fig 15)
How many horsepower does a tomos A3 have?
not present Engine S Single cylinder, two stroke, air Bore x stroke 3 38 x 43 mm (1.496 x 1.693 Piston displacement 4 49 cm3 (2.990 in3) C Compression ratio 8 8.5 : 1 E Engine output 0 0.75 -1.5 KW G
How to remove exhaust silencer from Tomos A3?
Unscrew the crown nut and extract control cable along with throttle piston (fig 8) Unscrew bottom screw on control cable cover and release the spark plug cable (fig 9) Detach all electrical leads (fig 10) Remove fuel supply line. Remove the two exhaust manifold bolts, the fixing screw, and remove the exhaust silencer (fig 11) 7
Why is the intake hose on my scooter not working?
Rubber Intake hose (boot) – the first place to check! On many scooters this hose or ‘boot’ deteriorates over time due to heat exposure. A faulty rubber intake hose is one of the most common cause of intake issues on scooters. If this hose seems fine, investigate further into your intake system to uncover any leaks.
Why does my scooter not start at 100 psi?
If it’s 100 psi or less there’s likely and engine problem (bad valve, bad piston, failed piston rings) which will need the engine taken apart to find. Probably the most common problems are a dead battery or carburetor problems due to bad adjustment or build up of gummy deposits.
What to do if choke on scooter wont start?
If the automatic choke is OK, the starter cranks the engine, there’s gas and there’s a spark then there may be an engine problem. You need to check the cylinder compression. You need a compression tester to do this. It screws in instead of the spark plug and measures cylinder pressure.