Topic: Battery Eliminator

[gnanner79]

Hey everybody.  First time posting.  I know the discussion was a while ago, but I thought I would pipe up seeing that I am in the same boat.  I have a 74 CB550 that I have been converting to a cafe racer for the past, #$%*, really long time.  I've been checking into smaller batteries to relocate under the seat cowl and found a sealed gell YUASA battery that I think will work.  The model number is TTZ75.  Its about 3" x 3" x 4" and is 12-volts, 9 amps.

Shawn
Chicago

[gnanner79]

Sorry...model number YTZ75.

Shawn

[Kamal]

I was appaled to see the wattages listed for the electrical workup.

Well, I run a 90 watt headlight, and tend to have no problems with my battery.  Though, I rarely ride my bike, and when I do, its always higher RPM. And, I never use the starter.

Nobody said anything about switching to high powered LEDs to reduce consumption.  You could theoretically eliminate almost all of the electrical load save the ignition and headlight by going to LED based lamps for the tailight, signals, and indicator lamps.

[cafe75-550]

Check out Cycle Exchange @ http://www.cyclexchange.net/Honda%20Page.htm

If you scroll down a bit, you can take a look at their charging system. Pricey, but less than digging up a mag and it gets rid of the battery and still powers the lights. Doesn't work with the electric start, but if you're trying to save weight the starter motor weighs a ton...

[Pinhead]

Could we possibly use the permanent magnent rotor off a 550 or the likes? I've got a 650 and the rotor is problematic to say the least...

Since I posted this, I found that the 550 has the same charging system as the 750, and the 650's is virtually electrically identical. With a good electronic regulator, most of the charging problems are eliminated (see my sig).

[edbikerii]

Careful, the 550 has the same type of system as the 750, but the 550 has a much lower output (fewer field and stator coil windings, I guess).

Could we possibly use the permanent magnent rotor off a 550 or the likes? I've got a 650 and the rotor is problematic to say the least...

Since I posted this, I found that the 550 has the same charging system as the 750, and the 650's is virtually electrically identical. With a good electronic regulator, most of the charging problems are eliminated (see my sig).

[tmht]

My philosophy on weight reduction for performance is as follows,
1. Take as much unsprung weight off as possible, in the case of sohcs, alloy wheels would give the best bang for the buck (not using oversized tires helps too)
2. Take as much weight off above the seat as possible. When I was club racing in the early 90's all of these guys were spending obscene amounts of money to get a CBR600 30 pounds lighter, when they could have cut their big mac allowance back and taken 50 off of the rider.
3. Anything that rotates above the shocks. Crank, rods, etc...
4. anything else is gravy because you are getting into diminishing returns

[Jim F]

Heres my solution
And I did buy the ARD from Terry

Just haven't had time to get it going

Jim

[andresricha]

I have a Honda CB550 and my battery has to be put on a trickle charger every few days. is there a way around this or would i just get a newer battery? i was told this is normal but every few days seems excessive?