Motor runs wide open but no power from generator

Question edited for clarity.

Engines only need 3 things to run

Fuel (is it fresh, carb clean, jets clear)
Compression (test with compression gauge)
A spark at the right time (remove plug, ground it, check for spark)

10 Common Reasons Your Generator Won't Start

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Jun 3, 2022 - 1) It's low on oil · 2) It's out of gas · 3) The choke lever is in the wrong position · 4) The fuel valve is closed or clogged · 5) The carburetor ...

I have a powerback 5000 watt with a 10 hp, tecumseh motor

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1 answer · Top answer: If your happy with my service please don't forget to rate my service. Thanks John

10 Reasons Why Your Generator Won't Start - Blog

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Aug 17, 2021 - Top 10 reasons your emergency home generator won't start · 1. Fuel Tank Is Low. Your fuel should be the first thing you check. · 2. Low Oil Levels ... ..

Hp is usually on engine covr. Calla lawnmowrshop

on the plate attached to the motor you will find several important items
one is the wattage of the motor
this is the maximum wattage that the motor uses when under load
the gen set will need to be at least 30% bigger than that figure
next there will the number of phases that the motor is
it will read as 1 ph or 3ph
If it is 1ph that is a single phase motor and will ru from a single phase gen set
however if it is 3ph you will need a 3ph gen set to run the motor
As most single phase motors are limited to around 5hp I would be very sure that the motor is not 3ph
specialist advice from an accredited electrician or electrical motor shop is recommended before buying a gen set. as if you need 3ph the gen sets become expensive.

Needle valve likely culprit or diaphragm in fuel pump .

this model has an electronic voltage regulator this might be your problem sometimes when gen sets are left outside the little critters and such get in there and build there homes on top of something and that makes it get hot when we finnaly use the gen set , this overheats the part and hence we need to replace the part , if left outside I take fine mesh screen and cover all the air gaps in my stuff cus this has got me in past more than once

Hi and welcome to FixYa, I am Kelly. I understand you have a 10 HP Tecumseh engine. There are service manuals available on line for your engine but without your engine model number it is difficult to pass you the correct one: Here is the link for the service manuals:
http://www.mymowerparts.com/pdf/Tecumseh_Service_and_Repair_Manuals

Somewhere in the list is your manual.
This is my best guess without your engine model number:
http://www.mymowerparts.com/pdf/Tecumseh_Service_and_Repair_Manuals/TECUMSEH_SERVICE%20_REPAIR_MANUAL_OHH50-65_OHHSK50-130_OHV11-OHV17_OVM120_OVRM40-675_OVRM120_OVXLC120_OVXL120_OVXL125_695244A.pdf

^-Make sure you read about Adjustments in section 1 also.

Running wide open causes:
1. Broken throttle control plate spring
2. Governor spring problem
3. Internal Governor flyweight has departed the governor gear.
4. Throttle plate (butterfly) attached to the throttle shaft in the carb throat has come off the throttle shaft.
5. Broken / missing linkage
6. Someone loosened the governor shaft bolt at the base of the governor arm and allowed the governor to get out of adjstment.

Thanks for choosing FixYa,
Kelly

high idle screw or governer

Parts lists for Coleman generators are here: http://www.jackssmallengines.com/coleman_parts_lookup.cfm

More detailed information about the engine can be found by using the engine model number. Look around the fan shroud or engine block. Coleman used different engnes, however your gen may have incorporated a Tecumseh 10 hp engine. Good luck

4 bolts to the engine then altenator will just pull off may need a puller to get it moving

longer exhaust pipe from motor and better muffler. Go with a larger pipe too to allow for better engine performance. You can get a tractor muffler from Tractor Supply that meets your needs.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/matthew_d24b835e574ef6ca