Suzuki 2 Strokes

Carbs are cleaned and good... maybe ignition coils? Spark seems weak [quote][/quote]

Hello Pippi,

It is possible that as the revs rise you are running out of power from the battery. Higher revs take more out of the electrical system. As a simple test charge up the battery using a battery charger, a good battery should read 13.0 - 13.4v across the terminals with no load. Then give it a whirl up the street and see if it makes a difference. If the test shows a better performance you will need to look at the charging circuits and determine if they are doing the job they are supposed to.

Cheers Geoff

+1 on it being a dying battery. A good, fresh, fully charged battery would enable you to run for 90 minutes to 2 hours without any problems at all (lights switched off), even if you disconnected the charging system.

I ran my 380 on total-loss electrics for a few years because the generator rotor had died, it would happily do 70 - 80 miles before the spark started to get weak. And of course the 380 has three ignition coils to fire, not the two of the T500, so it's taking 50% more juice from the battery.

If the battery on the bike is more than 3 or 4 years old, just replace it, the lead-acid batteries these bikes use are dirt cheap.

ordered the power dynamo electronic ignition, ripped out all the wiring, doing a rebuild....