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ive seen this problem twice. if the regulator overcharges and voltage gets too high the computer lowers the engine speed, when voltage drops it revs back up over and over again. unplug the regulator. if the problem goes away replace the regulator

your part number says its a right hand hydro 12cc. the pump kit is 135-6826. this info can be found on exmark dealer advisory #081519 from august 15 2019. the rotating grp kit is 135-6830

can be as high as 320 degree on an air cooled engine, that will take your skin off.

red white is switched power, constant comes off at starter post so it should work. did you check injector with a noid light. Is the fuel pump coming on? is there fuel in it? is a mill light hooked up to blink out codes?

you need power to solenoid to crank. constant power to ecu and switched power to ecu. not at work so I cant check the wire colors

on the efi if a safety circut is active you get no spark and injectors wont open

yes sorry for error

the 24 755 307-s ignition system I listed has mdi coils with built in spark advance. no sam needed

back by the right rear tire is the reverse cut out switch. the wire hooked to has a habit of breaking off. on bumps the bare end hits metal and cuts the pto off.

I went to a john deere school years ago. they said they dont paint the bottom of the deck, Its only overspray

from what I read hes saying that only one lifter goes back down by gravity, this means nothing, reinstall push rods and rockers. retorque to 160 inch pounds and recheck

use 24 755 307-s coils and flywheel combo. about 140.00 bucks. no battery power needed. this is a complete ign kit to replace old sam system. as per parts bulletin 265

that is the grounding strap for the regulator

briggs said they were moving all vanguard production to the usa. but that was before they went bankrupt. not sure if it happened.

yes, it had the horizontal engine

cut the hose from top of carb to accel pump in the middle and insert a solid dowel pin in it . or replace diaphragm. it has a hole in it.

hooking up the 2 small wires backwards will not cause a problem. this is a solenoid shift starter so there is only 1 wire. you may have a voltage drop so it doesnt go all the way in. take a screw driver and short between the battery wire and the small post and see if it works that way

this is a fuel injected engine, it has 12 volt coils. the coils have power at all times with key on. the computer grounds it to make spark. have yet to see a coil fail.I do a lot of fuel injected engines

33r877 0003-g1 is your model and type 808656 fuel pump superseds to 597338

need model and type numbers off engine

no damage just drain some out. be sure to check if there is gas in the oil causing it to be overfilled. you can smell it on dipstick and with a match the oil on dipstick will light up. if it does you need to change oil and repair carb.

that is a pulse fuel pump, if its leaking oil out of the brass breather you are overfilled with oil or have excessive crankcase pressure due to a bad headgasket

6-1 is the end code or some say the all clear.It will always read that. there is nothing wrong

the old cub GARDEN tractors were built like tanks. your LAWN tractor was meant to mow the lawn. Im sure it could be fabricated to fit but your ltx would never hold up.

on the older scags kohler added a diode in their wire harness because the key switch didnt send power to the fuel shutoff during the crank cycle. so they taped off of the solenoid wire. if the diode shorted it would cause that problem.

battery hooked up backwards?

135-6826 is the right hand pump kit,135-6830 is the rh rotating group dealer advisory #081519 402-223-6375 exmark number for questions on this advisory dated august 2019

i see the pics, thats a 700 dollar optional seat, if the hydro and wheel motor are sound its not a bad deal

is the price 2500 or 3900?. 2500 is ok if its in perfect condition, but is it? a pump or wheel motor are around 8 to 900 each. is the deck rusted out? at 3900 look elsewhere

I assume its a RADIUS, homeowner grade, not a bad machine if used right. It wont take the abuse that a lazer will but the price difference is huge,

take a look at the float needle. the black tip should be a perfect cone shape. if it looks like a nipple thats your problem, replace with 16030-7002 needle. kawasaki number

its the head gasket

you quest must have the automatic parking brake, the module has had problems with water entry and corrosion. causing battery drain, not start and brakes not disengage. if you pull the plug out of the brake module by the not easy, and see blue looking grease thats your problem. fix is new module...

the white wire coming out of the engine is the kill wire for the magnetos

the white wire coming out of engine

is your engine or pto clutch locked up? try putting a wrench on pto bolt and see if you can turn engine

go to parts tree and look up your model, look at electrical schematic and trace it out

mdi coils are digital spark advance, the small ring loop is to suppress rfi. I have no idea what coil that is. but for less than 100 bucks you can get a new coil kit. comes with 2 coils part number is 25 707 03-s

Its a radius, 1 tank with a center top pickup held in with 4 screws. from your info it sounds like the tube going into tank came off.

25 707 03-s

to bypass tilt sensor follow seat switch wire back to a small module mounted near battery. unplug both ends of module. I think you can then replug the 2 ends leaving the tilt sensor out of system. tilt sensor was designed to shut engine off in a roll over. exmark no longer uses it.

if you already bypassed tilt sensor and seat delay module try brake switch or kill relay. but the tilt and delay mod can cause the same problem. most likely the tilt sensor.

sounds like its internal, have seen quite a few times its the pin the governor gear rides on spun in block , supposed to be pressed in. not really fixable

everything looks right, in the 4th picture you have a good view of governor arm. loosen the clamp bolt around shaft with screwdriver slot. move arm to full throttle and hold, now turn shaft in same direction until it stops. it wont move far. tighten the clamp bolt. governor in now set. now...

dont replace lever switches, its suppose to shut down with brake on and levers pulled in. brake switch or relay is very rare. really only the seat switch circuit will shut it down. tilt sensor and seat delay module are part of it. i work for the 2nd largest east coast exmark dealer . ive been...

if it is a 27 hp replace the coils with 25 707 03-s coil kit, it will replace the 3 wire or 2 wire with sam coil systems. follow instructions with kit. cost is about 100 to 110 dollars. as per the sudden shut shut down if you still have the tilt sensor mounted next to battery bypass it. can also...

yes quality, like the kohler big block that overheated so bad it warped cylinders and spit valve seats out, and if you got past that the plastic cam was just waiting to grenade.or the command series that if the head gaskets didn't leak the oil pan did, the constant ignition coil failures and the...

the short answer is they all do

the engine your talking about is made in china to exmarks specs.I work for an exmark dealer and have 45 years experience as a tech. the engine in question runs great and no problems with it.