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wolflover72 01-01-2009 09:17 PM

I will pick one up. I am a parts store manager and I have one on the shelf. Thanks.

wolflover72 01-03-2009 01:36 AM

I tried the spark tester and according to the settings on the one I used it is fine for electonic ignition. Sunday after church I am going to try changing the fuel filter and the plug wires. Wish me luck. Thanks again to everyone for your advice and for making me feel welcome.

qtrracer 01-03-2009 05:57 PM

I still am thinking bent or burnt valve in rear cylinder , fuel issues should affect both front and rear equally and you have checked spark throughly so problem still might be in the valves if the exhaust valve is burnt it can still affect the combustion and not affect the compression readings like you would think, just a thought.

wolflover72 01-04-2009 05:46 PM

Well I seem to still have the issue. So qtrracer how tough a job is it to change a valve and should I do both heads?

qtrracer 01-05-2009 12:14 PM

Depends , but yes I would do both but as long as you have both heads off I would take them to some one to have them gone through , new valves guides seals, heads checked to make sure they are flat and seats are done or replaced. I know this is not what you want to hear but as long as they are off this is the best time to eliminate future problems in the heads. Good Luck!

wolflover72 01-05-2009 01:38 PM

Will I need to remove the jugs also?

wolflover72 01-07-2009 09:10 AM

Well I called the shop to set up taking it in and they say they think it is in the carb. They say it can't be the valve with that compression. Now I am very confused.

KBFXDLI 01-07-2009 09:43 AM


Originally Posted by wolflover72 (Post 4344017)
Well I called the shop to set up taking it in and they say they think it is in the carb. They say it can't be the valve with that compression. Now I am very confused.

I would go through the entire fuel system before you get into the heads. I doubt at 14k you have a valve issue.

Table 3-36. Normal Compression Ranges (2005 XL Manual Specs)
883 cc 125-140 8.62-9.65
1200 cc 200-225 13.8-15.5

Table 3-37. Compression Test Results
Ring trouble
Compression low on first stroke, tends
to build up on the following strokes, but
does not reach normal. Improves considerably
when oil is added to cylinder.

Valve trouble
Compression low on first stroke, does
not build up much on following strokes.
Does not improve considerably with the
addition of oil. Check for correct pushrod

Head gasket leak Same reaction as valve trouble.

You may want to have a leak down test done.

The cylinder leakage test pinpoints engine problems including
leaking valves, worn, broken or stuck piston rings and
blown head gaskets. The cylinder leakage tester applies compressed
air to the cylinder at a controlled pressure and volume
and measures the percent of leakage from the cylinder.
A) and follow the specific instructions supplied with the tester.

Cylinder Leakage Test Procedure
After completing the cylinder leakage test(s), make sure
that the throttle plate is in the closed position before
starting the engine. Starting engine with throttle open
may result in serious engine damage.
The following are some general instructions that apply to Harley-
Davidson V-twin engines:
1. Run engine until it reaches normal operating temperature.
2. Stop engine. Clean dirt from around spark plugs and
remove the spark plugs.
3. Remove the air cleaner and set the carburetor choke and
throttle in the wide open position.
4. The piston in the cylinder being tested must be at top
dead center of compression stroke (both valves closed)
during the test.
5. To keep the engine from turning over when air pressure
is applied to the cylinder, engage transmission in fifth
gear and lock the rear brake.
Before performing the cylinder leakage test, verify that the
tester itself is free from leakage to obtain the most accurate
test results. With a soap solution [applied around all tester fittings],
connect the cylinder leakdown tester to the compressed
air source and look for any bubbles that would
indicate leakage from the tester.
6. Following the manufacturer's instructions, perform a cylinder
leakage test on the front cylinder. Make a note of
the percent of leakage. Leakage greater than 12% indicates
internal engine problems.
7. Listen for air leaks at carburetor intake, exhaust pipe and
head gasket. Air escaping through the carburetor indicates
a leaking intake valve. Air escaping through the
exhaust pipe indicates a leaking exhaust valve.
If air is escaping through valves, check push rod length.

repeat test on rear cylinder.

wolflover72 01-12-2009 01:11 AM

Here's an update. I stopped babying it and started running it up to about 4000 rpm before shift and after a little riding like that it has went over 90mph until the wind started blowing me around and I backed off. So another nice day and I will see how she is doing for sure. Thanks again everyone.

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