Triumphrat

GavTR6RV

Hi guys..

The tr6 has decided to start missing on the left side cylinder especially on start up...once warm not too bad....

Tried changing plugs, leads and coils ...no difference still same problem, checked all wiring to make sure no rubbing etc all OK
It is running the boyer...anyone know how to test this thing or any other ideas...

Help is appreciated as always

Gav

GavTR6RV

Also forgot to put in Battery is fully charged and charges nicely...

Thanks

Gav

boatwrench

I would start by verifing battery voltage is up...? I have a problem with my charging system, and I can tell when the battery starts getting low by a miss that develops.....It'll even foul a plug if I run it to long with low voltage. Seems my boyer starts having trouble below 11 volts or so. Hope this helps some.
Sorry I'm a slow typest...ya beet me to the battery thing,

thirdbike

You have to tell us what you got.
What kind of plugs wires and caps are you running and what kind of Boyer? Analogue unit should be run with non resistor wires and caps but R plugs or caps OK. Digital requires resistor wires etc. Make sure all connections are clean including under the tank and wires away from coils. Coils should be 6 volt.
There is nothing wrong with your Boyer as it works albeit when hot. If everything above checks out, try switching coils to see if the problem follows.

GavTR6RV

Thanks Thirdbike...Just further to the scenerio..It is a micromark3 system...Stator plate appears OK...

Changed over coils,plug leads, plugs, checked timing position..the problem follows..always on left side....was running fine

seems to be intermittent...ie will start on right side cylinder..miss on left for a few seconds then left will cut in for a second or two then miss again on left for a few seconds then cut in again then miss again etc etc

Checked wiring from stator plate..no breaks and no resistance...

Hope this explains a bit more

Gav

thirdbike

I'm assuming that was a typo and that the problem does NOT follow to the other side with the changeovers but remains on the left side.
You are not using R caps and wires.

Take your left plug out, drape it against the engine and connected to the plug wire. Start your bike and watch the spark preferably out of direct sunlight so you can observe it better. If spark is intermittent, reinstall plug and switch the pickup wires around at every joint until you move the problem to the other side. If you have a nice clean blue continuous spark then it just might not be electrical.

GavTR6RV

thanks thirdbike...
Yep..sorry was a typo...was getting late...
changed over plugs..coils etc..problem still with left....pulled plug out intermittent and weak spark for left...nice jolty one on the right...
I had a look and the Boyer I have was made in 2001...so im thinking maybe an update...Im at a bit of a loss as to what else it could be...started today again on right...and left coming in now and again....amp meter showing charge and quick battery check with meter showed 13 v going in..so to me means plenty of juice going in to power it...what do you mean by R type

Gav

Webby

Hi Gav,

If you've tried swapping over the coils etc. and you are still getting a weak spark at the L/H plug it is very unlikely to be the boyer, have you tried swapping over the plugs & leads? Also try swapping over the cables from the pick up in the points housing, maybe you have a dodgy pickup.

Good Luck

Webby

GavTR6RV

After much abusing the dog and throwing spare spanners...as a manner of thinking I took the battery to the auto electrician for a look...Even though was charging and charged...Yep you guessed it...dropped a cell...not enough charge to get the boyer going...so new battery straight in...first kick..we have nice noise....Just to prove to myself it wasn't a fluke..I left it for a few days...and what do you know..first kick again...
Yet another Battery V Boyer problem...lesson learnt again..things may seem OK but unless you can test properly you never know..

Thanks to all who put suggestions up...alsways handy to have a few minds thinking about the problems...

Regards
Gav