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Hi just ordered a Yuasa from sportsbikeshop on offer for £39.95.
for those in need of a battery.

Ive only had the Varta battery on for two years, optimate on green but will hardly turn bike over. My own fault as I left it flat for a while over winter. Anyway jump started it from battery on boxer fired up first time, sweet.
I put a new starter solenoid on last year all connectors seem clean. When searching batteries people talk about a wire mod to improve things? being a bit slow here but can't find what the mod actually is, anybody able to enlighten me.
I know that these bikes seem to eat batteries, but my boxer is agricultural to say the least and never a problem starting.

The wiring mod is basically bypassing the brown connector.
We don't recommend that people do this unless they actually measure a low charging voltage at the battery and have first tried to solve this by cleaning up connections in the charging path (particularly in the brown connector itself).

The battery you've ordered is the standard one for the bike. There is a better one - the YTX14H-BS which has a rather better CCA rating (cold cranking current)

I wouldn't say these bikes eat batteries - my original lasted 6 years and my current one is 4 years old and going strong. They don't seem to like being on bikes that are not regularly ridden.

Ah, thanks for the info Ill get the multimeter on and give it a check. Your right I probably don't ride it as often as I should, weekend toy. I'm fortunate that I can use pedal power for my commute although I'm sure many would think that madness.
Hopefully battery should arrive by the weekend and I'll give it a go.

Ah thought it was the higher spec one, that will teach me late night shopping, got confused with all the different prefixes while researching

I think mine is the YTZ-14S it has slightly lower capacity, but a better CCA than standard.

Next time I forget to connect the charger and have to buy a new one I'll get the one d-rider posted, it has more capacity and CCA than mine (I know size isn't everything, but I need a bigger one)

wayno wrote:I think mine is the YTZ-14S it has slightly lower capacity, but a better CCA than standard.

Next time I forget to connect the charger and have to buy a new one I'll get the one d-rider posted, it has more capacity and CCA than mine (I know size isn't everything, but I need a bigger one)

I've got the YTZ-14S at the moment - it's doing well but is physically smaller than the standard battery and needed some spacers to stop it rattling around.
It'll be the YTX14H-BS next time for me. Same size as the standard one with even better CCA.