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Anonymous Posted on Nov 06, 2018

Predator 8750 Generator’s electronic start not working. It does nothing. But generator will start on first manual pull. Can it be the switch? Battery is charged...

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James Humphreys

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  • Contributor 13 Answers
  • Posted on Nov 07, 2018
James Humphreys
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Joined: Aug 18, 2012
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Sometimes the starter motor gets hung up see if you can spin the starter motor by hand a turn, then try the electric start, this should work

  • Joy Conn Dec 29, 2019

    How do you spin the starter motor? Ours is making a grinding/buzzing sound.

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5 Related Answers

Anonymous

  • 10319 Answers
  • Posted on Aug 18, 2010

SOURCE: Generator not charging Battery is fully charged

Blown diode in the altenator

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John Trevino

  • 1420 Answers
  • Posted on Nov 28, 2010

SOURCE: I have a 5000 w maxa ER generator that has a

Replace battery with your choice of 12v products considering physical size, amp range and warranty. Lawn tractor batteries seem to have the least life/duty cycle. There are two methods of charging the battery used by Coleman. One is to charge the battery with charger/alternator coils installed under flywheel of the engine and second is to charge with built-in circuit in generator itself. Examine your wiring diagram to discover which you have. Simple test with volt meter will show if system is charging. Test voltage at battery with engine off, then start engine and retest looking for slightly higher voltage indicating charge. The charging system is like a trickle charger and not like your auto with initially high amp charge then taper to minimum. If your run your generator for long periods of time and you feel that the battery is being overcharged, then rig a switch to stop charging after one hour or longer. Good holiday

Steve

  • 3290 Answers
  • Posted on Apr 09, 2012

SOURCE: What size wire is needed from transfer switch to generator

Most battery chargers are trickle type chargers - that is, they provide a constant low current (under an amp) output at 12 - 15 volts to keep the battery charge up. This small charging current is handled easily by a #14 or #12 wire which will pass up to 2 or 16 amps consistently, respectively (the larger cables off the battery are for the starter motor).

If you're having trouble maintaining a charge on the battery, a careful check of the charging circuit is required. Look for loose or corroded connections - at the battery in particular, open or blown fuses on the input (120 volt) side of the charger and the 12 volt output side (if provided). Battery acid is conductive. This means if there is a path of battery acid from one post to the other - no matter how long or short the path - the battery will discharge through this path. Neutralize (with baking soda) and clean any battery acid from the area to be sure the battery isn't discharging faster than the trickle charger can charge it. You can check the output of the charger with a DC voltmeter. Simply press the test leads to the battery posts and some value above 11.5 volts (11 - 12.75 volts may not be uncommon). Look at the chart below to get an idea of the charge of a lead acid battery

4_9_2012_7_36_01_pm.png

With the battery disconnect from the charger (or the charger powered off), the meter should show indicate 12 volts (even if practically dead) without a load. That's why it is important to load the battery when trying to get a voltage reading from it. Many auto parts stores sell and loan battery load / meters expressly for this purpose. They look like this:


4_9_2012_7_22_05_pm.jpg

If you have a battery that won't stand up under load, you may have a a problem with acid / distilled water level or even a dead cell. You can not check these variables in a maintenance free battery however. If you have removable caps on the battery, check and top off the level with distilled water only to a "full" or "high" level mark. A hydrometer can be used to determine the charge of each cell in the battery. These can be had for under $10 in most auto parts stores, too. They look like this:

4_9_2012_7_27_43_pm.jpg
Make sure you get one to check the specific gravity of battery acid - NOT to check anti-freeze level protection - they look similar.

Good luck!

Bill Boyd

  • 53816 Answers
  • Posted on Dec 30, 2014

SOURCE: The piston rod is dis connect from thepiston.

If the piston rod ( conrod) is disconnected from the piston then there sure is something broken as it connects the piston to the crankshaft.to make the motor go,

jerardi

David Payne

  • 14162 Answers
  • Posted on Feb 09, 2016

SOURCE: How to install battery on predator. 4750 7000 generator

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2answers

My predator 8750 gen runs ok till I make it work then back fire an quite, how adjust the valves?

Hi!
If you have a portable Generator then we can help. :)
Check out our Valve Lash video and see how to pinpoint and fix the problem.
https://www.generatorguru.com/help-me-fix-my-generator-repair-advice/
If you need more advice or gap measurements we can get you in contact with one of our Generator Engineers to guide you. We do not charge for this service and are happy to assist you throughout the repair.
https://www.generatorguru.com/need-help/
Kind regards
The Generator Guru Team
Specialist Portable Generator Engineers & Parts Worldwide
www.GeneratorGuru.com

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Looking for carburetor for predator generator 7000/8750

Carburetor For Predator 420cc 5000W 6500W 7000W 8750W CARB 188F Gas...

Carburetor For Predator 420cc 5000W 6500W 7000W 8750W CARB 188F Gas Generator
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Valve clearance speicafications for predator 8750 generator

0.015 inches intake and exhaust, if not running right 0.020 inches for exhaust.

We also we sell parts if you need them :)
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I need a battery for a predator portable generator

Go to WalMart and look at their EverStart line of batteries for motorcycles and ATV's. I have the 8750/7000 watt predator and the EverStart ES9BS works great and fits well on the holder. It comes with the acid and you will need to add the acid and fully charge the battery before use.;
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