Why is my 400EX ticking?
It will tick if your valve clearances are too big. . . Definitely check/adjust your valves to spec. If you replaced rocker arms and don’t know what valve lash is then this is certainly your problem. It’s an easy fix.
How much horsepower does a 2002 Honda 400EX have?
This configuration lends to a top speed of 65 – 72 mph (105 – 116 km/h) and 28 RWHP (20.59 kW) horsepower.
What spark plug does a 400Ex take?
Ngk Resistor Sparkplug Dpr8Z For Honda Trx 400Ex 1999 2008.
Why is my 4 wheeler ticking?
The Battery Needs To Be Charged or Replaced. Battery problems are the number one reason ATV owners hear the dreaded click when trying to start their quads. ATVs give batteries a workout, so it’s not uncommon for one to go bad after a couple of years.
Does a 2003 Honda 400ex have reverse?
From neutral with the quad running reach down and move that lever forward and then shift down twice, it should go past first and into reverse. Sweet, apparently it does in fact have reverse.
How much is a 400EX worth?
Values
| Suggested List Price | Average Retail | |
|---|---|---|
| Base Price | $6,399 | $5,135 |
| Options (Add) | ||
| Total Price | $6,399 | $5,135 |
When did Honda stop making 400EX?
2009
Unfortunately, the 400EX was discontinued by Honda in 2009, but considering how widely popular this ATV was, the market is still flooded with Honda 400EXs.
What happens if you dont adjust your valves on a ATV?
The valve timing changes slightly, which might affect your ATV’s performance and emission outputs. The valves restless in their seats, and exhaust valves don’t get enough time to give up their heat. This leads to detonation, pre-ignition, engine overheating, warped or burnt valves.
What spark plug does a 2002 Honda 400EX take?
NGK DPR8Z Spark Plug Honda TRX 400EX TRX400EX 400X XR400 XR 400 400R 1996-2017.
What size socket is a 400EX spark plug?
Compare with similar items
| This item Motion Pro Spark Plug Socket 18 mm for Honda TRX 400EX 1999-2008 | ARES 11007-5-Piece High Visibility 3/8-Inch Drive SAE & Metric Spark Plug Socket Set – Heat Treated CR-V Steel Mirror Polish Sockets with Rubber Retaining Rings – Spark Plug Removal | |
|---|---|---|
| Sold By | The D Zone | ARES TOOL |
How do I check my ATV timing?
How to Tell If ATV Jumped Time
- #1 Take out the spark plug.
- #2 Take off the camshaft cover.
- #3 Turn the crank.
- #4 Check timing marks on cam sprocket.
- #1 Make sure you are on the compression stroke.
- #2 Remove the sprocket off the cam.
- #3 Move the chain to line up with the timing marks.
How do you fix a Hydrolocked ATV?
There’s a good chance that the air filter box is filled with water, so you’ll need to take off the seat, open the filter box, and take the filter out of it. Then, open up the box’s drain plug and clean out any water or dirt. If you have a paper filter, or if you rode in mud, you’ll need to replace your air filter.
How much horsepower does a Honda 400EX have?
In terms of horsepower, the two machines were about equal. The 400EX put out 25.4 horsepower on the White Brothers dyno back in 1999. Most surviving 250Rs were heavily modified by then, but a stock one would have had similar peak output to the new 400. The biggest difference was the width of that powerband.
How much does a 400EX weight?
Dimensions. The 400EX’s overall dimensions are 72.2 x 45.3 x 43.7 inches (1,835 x 1,150 x 1,110 mm – L x W x H). Seat height is 810 mm/31.9 inches, and footpeg height is 353 mm/13.9 inches. Dry weight is 170 Kg (375 lbs.), while GVWR (Gross Vehicle Weight Rating) is estimated at 288 Kg (635 lbs.)
What was the last year Honda made the 400EX?
Sport quads vanished, ATV manufacturers retreated and the forces of mediocrity and bureaucracy advanced, threatening to overrun anyone who dared to ride a quad for the pure joy of it. Then, in model year 1999, that entire era came to a close with the appearance of one ground-breaking machine: the Honda TRX400EX.
What is a Honda 400EX worth?
Typical Listing Price $2,255. Standard engine specs: 1-Cylinders, 4-Stroke, 397cc.
How do you know when your ATV timing is off?
To check if the ATV timing is off by 180 degrees, you need to remove the spark plug and camshaft cover. Turn the crank to see the “T” mark and check for the cam lobes to be facing up. If the lobes are facing up and your cam sprocket timing marks are lined up perfectly, then your timing is 180.
How do I know if my valves are out of adjustment?
When do I need to have a valve adjustment? You should have your valve lash inspected at manufacturers recommended intervals. A sure sign that it’s time for a valve lash adjustment is if your engine is making a loud clicking or tapping noise when starting up or if you experience a loss in engine power.
What kind of spark plug does a 400EX take?
Ignition Coil & Spark Plug 30700-KCZ-000 Fit for Honda Sportrax 400 TRX400EX XR400R, 30500-HN1-003.
What spark plug does a 400EX take?