Starter Update

[Curtis Chambers]

There is no protection on the starter , is that normal for sleds. Just a question. Attach a piece of number 10 or 12 around end of lead with a marret

 

[bbquadrider]

No protection on the main circuit of a starter on any vehicle....the protection is the relay...if relay jams you better be quick taking off the battery connection

via big bad phone

 

[cannondale27]

Yup no fuse.

Can you electrical guys explain why they felt no need to ground to chassis right at the battery in addition to engine?

 

[Curtis Chambers]

Yes I'd say that's why I thought that was odd

 

[stingray719]

Yup no fuse.

Can you electrical guys explain why they felt no need to ground to chassis right at the battery in addition to engine?

Starter ground to thin aluminum might flash a hole in it but that is just a guess

 

[bbquadrider]

They ground it at the engine because it is the highest electrical load and the engine is often isolated from the chassis with vibration dampers

via big bad phone

 

[cannondale27]

Perhaps that is another thing to blame for glitches in the starting and running? Also this sled the starting system is completely independent of the ECU. That is also something out of ordinary compared to past Yamahas which would not crank with kill switch off.

 

[cannondale27]

They ground it at the engine because it is the highest electrical load and the engine is often isolated from the chassis with vibration dampers

via big bad phone

I know that but its not grounded to chassis at battery like every other sled and car is.

 

[Curtis Chambers]

I kinda thought mine was but didn't pay to much attention to it . I would think it should be otherwise it will be a floating ground whitch could cause other issues and weird voltages because it has no were to drain. That's the purpose of grounding. Get rid of stray voltage .

 

[bbquadrider]

Yes the starter is wired like it was added as an accessory. .which makes sense as it is not a Yamaha chassis

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[cannondale27]

To me there has to be a reason why its common practice to ground at battery and starter direct to batt. Just pointing out differences which often are found to be a issue.

 

[yamahaguy]

There is a chassis ground over by the fuse box.

 

[stingray719]

I know that but its not grounded to chassis at battery like every other sled and car is.

Look at the size of battery cable, now look at surface if you bolt the cable to the thin aluminum tunnel. Not enough surface to carry the load in my opinion. When we remote mounted batteries in the back of stock cars we always bolted battery leads to the frame and not any thin metal. You could bolt negative to tunnel but would need a patch of some kind to distribute the amperage

 

[cannondale27]

Yes but its not at the battery like everything else. It takes $ and effort to ground at battery but everyone else still does it. There has to be a reason. That is the question. Why make the effort to ground as close to battery as possible?

 

[bbquadrider]

No need for a chassis ground if no circuits like lights use it.

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