Spark plug gap on 8hp

.020 to .022.

Tune-Up Specifications: John Deere - Yesterday's Tractors

https://www.yesterdaystractors.com > atrp > specs > jd
Model Point Gap Spark Plug Gap Timing Mark On Spark Occurs Firing Order Int. Valv... M,MT .020 .025 FLY TDC 1?2 012C L,LA .020 .025 FLY TDC H (All Fuel) View 12 more rows

new points for my 1010 - John Deere 1010 Series Tractors

https://1010series.forumotion.com > t47-new-points-for...
Jun 30, 2011 - I have the Delco ignition and no experience or knowledge of points. I've heard they have to be gapped. How did you know how far to gap them?

Edited text with a wild guess at the maker. Make model (what it is) in all questions please.
Category moved to John Deere Tractor.

If it was working before, there is no need to worry about the firing order as that never changes. Things to look at;
Clean and correctly gapped spark plugs,
Clean gas,
Fuel filter?
and a clean carburetor, float bowl and jets.

John Deere 3020 Engine Engine Detail John Deere Firing order: Starter volts: Oil capacity: 9 qts 8.5 L 13 more rows •
Jul. 10, 2020

TractorData.com John Deere 3020 tractor engine information

John Deere 3020 Tractor Service Manual - Jensales

https://www.jensales.com > products > John-Deere-302...

This John Deere model 3020 Gas and Diesel Tractor Service Manual is a digitally enhanced reproduction of the original manufacturer-issued Shop Manual.
US$120.98 · ‎In stock

operators manual for john deere 3020 tractor owners ... - eBay

https://www.ebay.com > itm

3020 Tractor Operators Manual. This operators manual includes Gas, Diesel, Lp. This comprehensive manual includes. Fully Covers Serial No.
US$15.97 · ‎In stock

JOHN DEERE 3020 Gas and Diesel Tractor Service Manual

https://www.ebay.com > itm > JOHN-DEERE-3020-Gas...

This is a new reprint of John Deere Service Manual SM2041 for the John Deere 3000 Series Tractors shown above. It is dated June 1961. Includes 3010 & 3020.

Ideal gap can vary depending on the brand of spark plug.

Best solution is to choose your spark plug brand and then check in the online application catalogue for that brand - the recommended gap is usually listed alongside the type listed for your machine.

Most likely points (dwell is too short for good spark when hot)... possibly ignition coil.

Does it use oil?

First check plug is not fouled and gapped correctly. Note condition and color of electrode. Could also be low voltage issue. Run 'til it starts missing then measure battery voltage with PTO on.

The best way to test for spark is to take off the wire to the spark plug, put the metal end of a screwdriver into the socket, hold the metal of the screwdriver about 1/8 inch or 3 mm away from a metal part of the engine, and crank the engine.

If you don't see a spark in the gap, the problem is in the ignition system, not the spark plug.

If you do see a spark in the gap, take the spark plug out, reattach the wire, touch the spark plug to the engine, crank it again to see if there's a spark in the spark plug. That will tell you if the spark plug is faulty.

Specifications

Engine HD45

Engine Model Number(Kawasaki FC420V
Horsepower (10.5 kW (14 hp)
Displacement (423 cc (25.8 cu.in.)
Crankcase Capacity w/o oil filter (1.3 L (1.4 qt.)
Crankcase Capacity with oil filter (1.6 L (1.7 qt.)
Spark Plug-Gap (0.64 mm (0.025 in.)
Spark Plug-Torque (20 N·m (15 lb-ft.)
Cylinders (One
Stroke/Cycle (Four
Lubrication (Full-Pressure
Oil Filter (Standard Single Element
Air Cleaner (Dual Stage

Engine HD75

Engine Model Numbe(Kawasaki FC540V
Horsepower (12.7 kW (17 hp)
Displacement (535 cc (32.6 cu.in.)
Crankcase Capacity w/o oil filter (1.6 L (1.7 qt.)
Crankcase Capacity with oil filter (1.9 L (2.0 qt.)
Spark Plug-Gap (0.64 mm (0.025 in.)
Spark Plug-Torque (20 N·m (15 lb-ft.)
Cylinders (One
Stroke/Cycle (Four
Lubrication (Full-Pressure
Oil Filter (Standard Single Element
Air Cleaner (Dual Stage

Fuel System

Fuel (See Fuel in the Service Miscellaneous section
Fuel Filter (Single Stage, 60 Micron
Fuel Pump (Vacuum Operated-Diaphragm
Fuel Delivery (Gravity Feed to Fuel Pump)
Fuel Tank Capacity (19 L (5.0 gal.)

Drive Train Mower Deck (36-inch)

Blades (2
Blade Bolt Torque (81 N·m (60 lb-ft.)
Cutting Heights (25-114 mm (1-41/2 in.)
Weight (86.7 Kg (191 lb)
Overall Width (chute up) (927 mm (36.5 in.)

Mower Deck (48-inch)

Blades (3
Blade Bolt Torque (68 N·m (50 lb-ft.)
Cutting Heights (25-127 mm (1-5 in.)
Weight (83.6 Kg (184 lb)
Overall Width (chute up) (1308 mm (51.5 in

ower Deck (54-inch)

Blades (3
Blade Bolt Torque (68 N·m (50 lb-ft.)
Cutting Heights (25-127mm (1-5 in.)
Weight (86.7 Kg (187 lb)
Overall Width (chute up) (1460 mm (57.5 in.)

Recommended Lubricants

Engine Oil (John Deere PLUS-4
Grease (John Deere MOLY HIGH Temperature EP
Transmission Oil (HY-GARD-J20C (TURF-GARD-SAE10W-30 (PLUS-4-SAE10W-30 (TORQ-GARD SUPREME-SAE30
(Specifications and design subject to change without notice.)

Sounds like the plug boot may not be on all the way. You may also have to check the spark plug gap.

If this is a Kohler engine make certain that you have replaced both the points and the condenser with new parts. You should not see sparking at the points if they are installed and adjusted correctly. For Kohler, the correct point gap should be about .020 inches - use a gauge. Don't assume that your spark plug is good - replace. While the number of spark plug failures is few I have had it happen.

Check ingition switch, check battery voltage 12-12 1/2 volts,check in run position same voltage, check in start position same voltage
We've check switch first. If not problem we've check the points for proper voltage and opening and closing.

if you have the manual it will tell you the type and gap for it