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SV650 Gen1 (99-02) Tech Info, advice or questions specific to the 1999-2002 model SV650.

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Old 04-14-2019, 07:18 AM   #1
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Max Current Draw 2000 Standard

Has anybody measured the actual current draw on a 1st gen with the engine running (about 4K), high beam on, blinker operating and the brake light on?

I seem to remember the charging system was rated at 300W, and somehow I came up with about 200W as an average max draw. I don't remember how I came up with it, however (been a long time). I do remember that the ignitor was an unknown, and I guesstimated the total ignition system draw.

Actually, the real question would be how much overhead is available for accessories? I have used a Widder 55W electric vest with no issues at highway speeds. In the past I considered adding heated grips in addition to the vest, but I recall thinking it would be borderline with regard to the charging system's ability to maintain a decent battery charge.

If there is someone with real-world experience in heated accessory additions/limitations, please comment.
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Old 04-15-2019, 01:32 PM   #2
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Re: Max Current Draw 2000 Standard

I believe the charging system is identical on S vs N. S has an extra 55/60 H4 bulb, so there's a significant amount of headroom available on the N.

I'd be surprised if an S couldn't run heated grips, so I'd be surprised if your N had any problems with your vest + grips.
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Old 04-16-2019, 03:50 AM   #3
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Re: Max Current Draw 2000 Standard

I've run heated inner gloves and a heated breast plate inside my Jacket with no problems.In fact it's actually lighter on the R/R when using more current so long as it doesn't exceed the current the Stator can supply.

Add up all the bulb's wattages and work out the amps used and you can add around 500/750 mA for the Ignition system on most bikes to get the current draw approx.

however I have changed some of my bulbs for LEDS(Stop-Tail/Front Parking bulb/Number plate light) so there's more current left for accessories.

I always run with main lights on.

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