Starter amp draw??

[mabednarz]

Does anyone know approximately how amps does a starter on a 1100RT draw at peak load?

 

The P.O. put an auxiliary battery in the radio compartment. Iit has a 30A inline fuse that until yesterday was fine. Now it is popping fuses.

Is a fuse really necessary there???

[dirtrider]

Does anyone know approximately how amps does a starter on a 1100RT draw at peak load?

 

The P.O. put an auxiliary battery in the radio compartment. Iit has a 30A inline fuse that until yesterday was fine. Now it is popping fuses.

Is a fuse really necessary there???

 

Morning mabednarz

 

It draws way over 30 amps at full load cold thick engine oil.

 

How is that Aux. battery wired in??????

 

If your bike has a main battery & an auxiliary battery the auxiliary battery should have an isolation relay that only connects that battery after starting so it can re-charge.

 

If your auxiliary battery is connected in parallel to the main battery (all the time) it should not have a fused connection & needs to be hooked up with full sized battery cables.

 

If wired in parallel then the main battery & auxiliary battery also need to be somewhat matched (ie same battery type, same amp rating, same approximate age, etc)

 

If you have a full time wired in 2nd battery (no isolation relay) with smaller wires & a 30 amp fuse it could work for a while until the main battery gets some age on it. Once the main battery degrades to a point that the aux. battery is supplying more cranking amps than the main battery it will pop a 30 amp fuse just about every cold start.

[mabednarz]

"If you have a full time wired in 2nd battery (no isolation relay) with smaller wires & a 30 amp fuse it could work for a while until the main battery gets some age on it. Once the main battery degrades to a point that the aux. battery is supplying more cranking amps than the main battery it will pop a 30 amp fuse just about every cold start."

 

Pretty sure that this is the case. Had the bike for three months now, and this just started happening. When the aux battery is not hooked up, all I get it clicks, the engine won't turn over.

[dirtrider]

"If you have a full time wired in 2nd battery (no isolation relay) with smaller wires & a 30 amp fuse it could work for a while until the main battery gets some age on it. Once the main battery degrades to a point that the aux. battery is supplying more cranking amps than the main battery it will pop a 30 amp fuse just about every cold start."

 

Pretty sure that this is the case. Had the bike for three months now, and this just started happening. When the aux battery is not hooked up, all I get it clicks, the engine won't turn over.

 

Morning mabednarz

 

 

That does sound like the aux. battery is trying to supply most of the amps for starter operation, that just won't work through a 30 amp fuse.

 

Can you install the aux. battery in the main battery tray then just eliminate the aux. battery?

 

The whole idea of an auxiliary battery is to have it isolated from the main battery during everything except charging. Then the auxiliary battery is used to run certain vital accessories with engine off so it won't run the main (starting) battery down.

 

 

[mabednarz]

I put everything on the charger through the port on the dash for 24 hours. WEnt from 12.4 VDC to 13.6 VDC. Bike cranked up with no hesitation this morning. (no trouble with the 30A fuse)

 

Looks like I have to pull the plastic and see how this is wired up.

 

Thanks for the help.