larky
New member
was wondering if some knows the points gap and spark plug gap for a 1974
(I think) yamaha 433 fan cooled. on the cluch side of the engine threre is a number 433 wb. its on a gpx but I dont think this is the original engine.
thanks matt
(I think) yamaha 433 fan cooled. on the cluch side of the engine threre is a number 433 wb. its on a gpx but I dont think this is the original engine.
thanks matt
RON HYDRAULIC YAM
Member
probably a GP433....my tech book doesn,t give a value....
Using dial indicator and meter ....set dial at top dead centre,(Cdn ehh).
turn crank counter clockwise (rev) until pointer at 1.8mm..Hold
crank in that position and adj pints to just start opening. Adj is made
by moving entire contact breaker assm..max allowable variation ,is
plus or minus 0.25mm , std variation is 0.10mm BTDC..
when tightening , use special care that the breaker doesn't move.
suggest you find a book as diff wires have to be removed so you
are only measuring one set at a time..
""When the timing has been adjusted correctly, the point gap will
also be correct"".
other wise ,,,just about anything will fire at 022"...
Send me an email sometime and I can fax the 2 pages of info
Good luck
RON
Using dial indicator and meter ....set dial at top dead centre,(Cdn ehh).
turn crank counter clockwise (rev) until pointer at 1.8mm..Hold
crank in that position and adj pints to just start opening. Adj is made
by moving entire contact breaker assm..max allowable variation ,is
plus or minus 0.25mm , std variation is 0.10mm BTDC..
when tightening , use special care that the breaker doesn't move.
suggest you find a book as diff wires have to be removed so you
are only measuring one set at a time..
""When the timing has been adjusted correctly, the point gap will
also be correct"".
other wise ,,,just about anything will fire at 022"...
Send me an email sometime and I can fax the 2 pages of info
Good luck
RON