No Spark at any Plug

[Paul Acheson]

Hi All

If anyone has any ideas to get my 89 Maxy firing again, they would be much appreciated.

It has been starting OK all winter just when I need it on the road there is no spark, but all the other electrics are working fine.

It stoppedd running a month back I thought it was out of petrol filled it up, charged the battery and nothing. Fuses are sound and there are no obvious faults.

I have an idea it may be the regulator, but not sure, anybody had similar
problem.

Many Thanks in advance

Paul

 

[satariel666]

I assume that You already checked the fuses.
Bike cranks and wont fire or wont crank at all?

If cranks and no spark then:

Theres a very simple way to check the Starting Circut Cut Off System which is the couse of no spark in 90% of cases.
Propably sidestand or clutch switch problem. By bypassing the one wire form TCI You can diagnose that the Starting Circut is the problem.
Without GND connection on that B/W wire TCI will only spark once and no more.

You need to bypass the B/W wire form the TCI box directly to the ground and see if that helps.
Simply fool the TCI.

Also grab the multimeter and check that is there +12V on the R/W wire.
That way you will diagnose the ingnition system suply.

If no change then most defo Your TCI is toasted which is very often with OLD type TCI's.

 

[PATMAX]

Or it might be the small four wire starting circuit relay that is located under the left scoop and directly in front of the CDI box. If you got a local Vmax buddy to switch em out, it is easy to do and takes about twenty minutes. Hope you figure it out.

 

[Paul Acheson]

Many Thanks Patmax, from Irish Biker Boy, Uxbridge, London, UK