with a spanner
most of the 4 wheelers have there keys system [50cc-450cc] like cars but some heavy power quads have kick to start like [500cc-1000cc].
Reliant Robins do not have 50cc engines ! They are either 478cc or 848cc.
20W-50
the suzuki lt50cc quad is about the best avalible
Because it's broken.
Have to remove chain links, there is no chain adjustment
12 ft pounds
You can just adjust it to turn off .
To remove the seat on a Suzuki 50cc wheeler, start by locating the seat release mechanism, which is typically a bolt or latch under the seat or at the rear. Use a suitable tool, like a wrench or screwdriver, to loosen or unfasten it. Once the mechanism is released, gently lift the seat from the back and slide it forward to detach it completely. Be careful to avoid damaging any wiring or components connected to the seat.
Read the user manual and concern with your mechanic.
25 to 35 mpg for ages 1 to 14
A 1970 50cc can sell for a high or low price depending on the particular model. It can sell for $2800, based on previous purchase prices.