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Tm mp5a4 please help!

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Right my Tokyo Marui mp5 has just been upgraded to 340 fps with new spring piston gearbox etc.

 

However since the upgrade my 8.4v 3600 mah NI-MIH battery does not have enough oomph to fire the gun.

 

But if I remove the extended cable from the gearbox (in the solid stock) which has the 15 amp inline fuse, and plug the battery direct into the gearbox it works fine.

 

Although I did just burn out the motor doing this (motor was ancient) and a marui eg1000 for the record.

 

Please help, ive got a new eg1000 motor and need to get this resolved and working before friday!

 

Can I lower the ampage of the fuse to allow more current through! I'm at a loss!!!

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Don't hold to this but surely if the 8.6 doesn't have enough power then upgrade to a 7.4 lipo . I got a 2600mah Nd it's bloody brilliant

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I think this is what I am going to have to do, just confused as to why it works fine without the fuse, unless its zapping some power to get through.

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I cant see how a 7.4 lipo could possibly fix this situation, also not sure why you've made two threads on the same subject.

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I think the lipo is going to be the next investment, and I made 2 posts as I realised the help and advice section after already posting this and didn't know how to delete this thread

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