Question about 2000 Harley Davidson FXST Softail Standard

1 Answer

Rear cylinder has no compression then all the sudden 1 cycle compresson is there then gone again. I took the valve cover and push rod covers off. the lifters, push rods, rocker arms and valves seem to be operating properly. Engine only has 12,500 miles on it and all services were done on schedule.Getting ready to pull the rocker arms and head off, if I don't figure whats wrong soon.

Posted by Anonymous on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.


    An expert that got 20 achievements.


    An expert that got 10 achievements.

  • Harley Davidson Master
  • 43,836 Answers

Hi Anonymous, try a different compression gauge or tighten the schrader valve on yours. Good luck

Posted on May 17, 2015


5 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

  • 69 Answers

SOURCE: no iol to top end

Sounds like a air leak somewhere to me

Posted on Jun 21, 2009

  • 269 Answers

SOURCE: engine noise

If you dd not torque the front sprocket down correctly you could have an issue. If this is a new noise then be concerned, if this has progressed over time, then it is more than likely just the bike loosening up. Which is normal...but loud, could this be pre-detonation, did you make the correct adjustments to your MAP? Check you push rod adjustment with the bike cold, I mean Artic overnight not running cold.

Posted on Oct 07, 2009

  • 221 Answers

SOURCE: push rod cover installation

What they mean by the base is the base circle of the cam.So at TDCC you are at base with little pressure on the rockers,so they can be removed.So if you have only removed the covers there is no need for anything except to put your cover back on.

Posted on Mar 19, 2010

Testimonial: "Exactly what I needed to know. It was broken down to very simple tems. Thanks a ton"

  • 4565 Answers

SOURCE: I have the rocker boxes

Your engine is on the compression stroke when the piston is at it's highest point in the cylinder with both valves closed. As you turn the engine over. you will see one pushrod go up (exhaust stroke) and back down the the other pushrod will go up (intake stroke) and back down. Now the engine is on the compression stroke and TDC is when the piston comes to the top of its travel. The piston is at the top and both valves at the spring are not compressed. When the spring is NOT compressed, the valve is closed. On the compression stroke, both valves must be closed.

Good Luck

Posted on Sep 09, 2011

Testimonial: "Thank You for your promp answer, the problem was that I didn't have the rocker arms on so I wasn't able to watch the springs, only the push rods."

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

John deere 180 motor took valve cover off push rod

put back in place see if it will start make sure bolts are tight and see if head gasket leeks check with compression gauge on compression stroke

Sep 05, 2014 | Garden

1 Answer

Engine wont start

Replace the damaged push rod and check the valves and compression.

Jul 14, 2014 | Craftsman 17.5 hp 42 in. Deck Lawn Tractor...

1 Answer

No compression in rear cylinder

You are showing 2 different problems, no compression in any cylinder and no compression in rear cylinder.

Going with no compression in any cylinder, if the camshaft is not turning you should not have compression in most cylinders. If one cylinder has both valves closed you may have some cranking resistance. Your timing chain or gear is broken. Look if you can at any openings for a PVC pipe in the valve cover or oil fill cover on the valve cover.

There is a chance you can see some valve rocker arms and if they are moving when the engine is cranked. Otherwise you will need to remove a valve cover to observe the rockers.

May 13, 2014 | Ford Taurus X Cars & Trucks

1 Answer

Model 331877 briggs fuel pump leaks oil out vent

I just got done repairing the very same engine with the same syptoms that you mentioned. I had considerable oil coming out of the fuel pump breather hole (copper colored mesh). The source of the problem: a blown head gasket. This will cause the piston, in the compression cycle, to pressurize the crankcase through the head gasket leak into the valve lifter chamber and push oil out the vacuum tube (bottom hose) leading to the fuel filter . To fix, you will need to first disassemble the cylinder head from the engine. To do that you first need to disconnect the three hoses to the fuel pump. Remove the cover to the air filter, remove the air filter and the screw in the bottom of the filter housing. Remove the four bolts attaching the plastic flywheel cover and remove the cover., remove the cylinder head (8 bolts)and check the head gasket to confirm it is blown (you will probably see some dark brown or black discoloration of the head gasket between the cylinder and valve lifter chamber. Carefully remove all old head gasket material from the block and head surfaces and clean the head bolts. If either your cylinder head or block surface looks ugly, you may need to get them resurfaced (flatness tolerance is very small ) Buy a valve gasket set (contains the head gasket and other needed parts)
Remove the valve rocker arm cover (4 bolts) from the head. Mark the exhaust and intake lifter rods (they are different) Clean the combustion chamber. If your engine has many hours on it, you will want to remove the valves and check the valve rims and seats for wear or pitting. You may want to hand lap the valves to insure they are seating perfectly.
I coated my head bolts with an anti-sieze valve lube compound. The B&S service manual calls for this. Reassemble head and torque head bolts to 220 in.-lbs. (4 stages) Do very accurately. Compress valve springs, install push rods and set clearances between rocker arm and end of valve stem. Turn flywheel to move piston so that both valves are closed before setting clearances. install a new fuel pump on the plastic flywheel housing. I removed the breather from the top of the engine (two small screws) and checked the reed and oil drain hole, and resealed the breather cover (you will need to pull the flywheel to get to one of the breather screws. I used a gray high-temp rtv liquid gasket compound to reseal the rocker arm cover and breather body. Reassemble all parts and screws and use small torques as listed in Briggs Service manual. I put in a new spark plug, changed the oil and filter, and breather tube, and o-ring at the bottom of my oil filler tube. That should do it

Aug 03, 2011 | Briggs & Stratton Briggs Stratton Intek V...

1 Answer

Briggs 17hp intek overheadvalve on a john deere L100 has developed a hard start hard spin on compression stroke. new battery new starter

hi there

pauly46 here

if engine seems to labour when trying to start as if too much compression ?

try adjusting to in and ex valve clearance to 0.003" inlet and 0.005" ex

inlet valve is the bottom valve, and has a alloy push rod. ex valve is top valve and has steel push rod ( as viewed from the front of the machine with rocker cover off ) )

note rotate engine with plug out to tdc compression stroke , then rotate it down the bore on power stroke by 1/4 inch ( 6.35 mm ) this is the point for setting in / ex valve clearances

manual says 1/4 pst tdc on compression stroke - this eliminates decompressor lift from the setting

cheers hope it hepls

May 01, 2011 | Briggs & Stratton Garden

1 Answer

Location of Pushrods

Push rods are used on engines that do NOT have overhead cams. They are generally about 8-12 inches long, about 1/4" in diameter, and run from the cam lifters to the rockers (at the valves). There is one push rod for each valve. A V8 with 2 valves per cylinder will have 16 push rods.

Typically, you remove the valve cover, remove the rocker, and the push rod can be removed.

Mar 27, 2011 | Pontiac Montana Cars & Trucks

1 Answer

No compression in the first cylinder

If your so sure of no compression on #1 cylinder, lift the valve rocker cover and observe valve condition. both valves will have a very small gap tollerance under compression stroke. Because it's #1 cylinder you probably arn't looking at overheating problem. ( usually rear cylinders) Your lifting the head to be sure !

Dec 12, 2010 | 1993 Eagle Talon

1 Answer

I have 1990 honda civic it has good compresson

Remove valve cover, loosen valve and lifter nuts, remove rod and seal.

You can go to and register for full free online repair manual with everything you could need.

Sep 16, 2009 | 1990 Honda Civic

1 Answer

Out of time and blowen valve gasket, No pressure in #1 Spark plug

Changed the cylinder head gasket or valve cover gasket? Did timing chain fail or did it overheat? (can't draw a correlation between the two) If chain failed you may have bent a valve. I believe you have to go at this step by step. from what you wrote, you are not going in one direction that isn't productive. Test compression with a gauge, if you can, have a leakdown test done. You may have other problems as well and I don't see where you did anything about the cause of the overheat??? If you can, have someone with some experience help you "hands on".
Good luck I'll answer whatever I can from this end.

Apr 22, 2009 | 1996 Jeep Cherokee Sport

Not finding what you are looking for?
2000 Harley Davidson FXST Softail Standard Logo

Related Topics:

93 people viewed this question

Ask a Question

Usually answered in minutes!

Top Harley Davidson Experts

Arnie Burke
Arnie Burke

Level 3 Expert

4536 Answers


Level 3 Expert

4340 Answers


Level 3 Expert

76846 Answers

Are you a Harley Davidson Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides