Motorcycle Mojo – July 2019

J ULY 2 0 19 MOTORCYCLE MOJO 61

Technical articles are written purely as

reference only and your motorcycle may

require different procedures. You should

be mechanically inclined to carry out your

own maintenance and we recommend you

contact your mechanic prior to performing

any type of work on your bike.

the gap requires loosening the points’

mounting screws and tweaking the

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on nubs and notches dedicated to this

purpose. Once the gap is set, you can

adjust the timing.

To do that, you must line up the F

timing mark with the cylinder on its

compression stroke by placing your

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feeling for escaping air as you turn the

crankshaft and align the timing mark.

The easiest way to time the points

accurately is to disconnect the wire

coming off the points that eventually

leads to the primary side of the coil,

then use an ohmmeter to test for

continuity by connecting one lead of

the ohmmeter to the end of the wire

and the other lead to ground. I use an

ohmmeter that beeps when there is

continuity so I don’t have to look at it

while I set the points. Set the timing by

pivoting the entire points-mounting

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I’ve hit my mark as soon as I hear

the beeping of my ohmmeter stop,

indicating the points have just opened.

After tightening the mounting screws,

the timing is set. On multicylinder bikes

with more than one set of points, this

entire process must be done for each set

of points.

While you’re in there, remove the

entire mounting plate before adjusting

the points and inspect and clean the

advance mechanism. Replacing the

points cover gasket also is a good

practice.

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http://www.durhamcollege.ca/coned/motorcycle | 833.414.7433

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Introduction to Motorcycling

1

Motorcycle M1 Exit (M1 to M2)

1

Motorcycle M2 Exit (M2 to M)

1

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Moving?

Changing your

address online

is easy, visit

It just takes the proper sized feeler gauge

and a screwdriver to adjust points.

Points mounting

plate locking

screw.

Points mounting

plate locking

screw.

Points

adjustment

locking

screw.

Use a

screwdriver in

this notch

to adjust

mounting plate.

Points

adjustment

locking

screw.

Points faces

must be clean

and smooth.

Use a

screwdriver

in the notch

to adjust

points.

Rubbing block

moves on an

eccentric,

which opens

and closes

the points.

Foam holds a little

oil to lubricate the

rubbing block.