Dyna misfire
Thread Starter
|
Tourer
Joined: Feb 2008
Posts: 359
Likes: 1
From: Yorkshire,England
Dyna misfire
I ride a 2006 FXD35,Stage 1 tuned from new.At around the 4500 mile mark she developed a misfire when warming up.She starts O.K and runs smooth when warm,but about 90 seconds after starting from cold shestarts tomiss,sometimes bad enough to stop themotor completely.My local dealer replaced the plugs at the 5000 service and has had another look at her since (under warranty)but the problem persists,I took the S/E mufflers off and refitted the stock ones but no joy there either.Any ideas?
Big Kahuna HDF Member
Joined: Feb 2006
Posts: 23,881
Likes: 34
From: USA
RE: Dyna misfire
You injector part numbers should be:
8 degree= 27625-06
25 degree= 27709-06A
Take a flashlight and look under the gas tank (behind the horn) on the left side of the bike and you should be able to read the part number. Your bike should have the 25's if the production date was afterFebruary 13, 2006. If you are unsure of your production date you can look it up on the HD website.
If you have the 8 degree injectors you may be getting cold start misfire. Get a copy of TSB M-1185 from your dealer or the MoCo. I have a copy at home if you need one. Your dealer should replace them under warranty. Mine did the same thing at about 500 miles. If you have the 25 degree injectors you have another issue.
Look here for a copy of M-1185 : http://www.france-streetbob.fr/telec...5injecteur.pdf
8 degree= 27625-06
25 degree= 27709-06A
Take a flashlight and look under the gas tank (behind the horn) on the left side of the bike and you should be able to read the part number. Your bike should have the 25's if the production date was afterFebruary 13, 2006. If you are unsure of your production date you can look it up on the HD website.
If you have the 8 degree injectors you may be getting cold start misfire. Get a copy of TSB M-1185 from your dealer or the MoCo. I have a copy at home if you need one. Your dealer should replace them under warranty. Mine did the same thing at about 500 miles. If you have the 25 degree injectors you have another issue.
Look here for a copy of M-1185 : http://www.france-streetbob.fr/telec...5injecteur.pdf
Big Kahuna HDF Member
Joined: Feb 2006
Posts: 23,881
Likes: 34
From: USA
RE: Dyna misfire
M-1185 1 of 2
SERVICE BULLETIN
M-1185 February 20, 2006
FUEL INJECTOR/CALIBRATION CHANGES FOR 2006 1450cc
BIG TWINS
®
Purpose
It has recently been determined that the 8
°
angle cone spray
fuel injectors used on 2006 1450cc Big Twins may cause cold
start and/or driveability problems on some motorcycles.
In the interest of promoting customer satisfaction, the 25
°
angle cone spray fuel injectors used on CVO 103 cu. in.
(1690cc) motors will be installed on all production Big Twins
beginning on or around February 13, 2006.
Additionally, Harley-Davidson will provide for the installation
of 25
°
angle cone spray fuel injectors on those motorcycles
where use of the 8
°
fuel injectors (part number 27625-06) is
determined to be directly responsible for cold start and/or
driveability problems. See REQUIRED DEALER ACTION.
NOTE
Due to changes in the manufacturing process, the part number
of the 25
°
angle cone spray fuel injector is changing from
27709-06 to 27709-06A. This fuel injector also will be
stamped with the words “25 DEG” for easy identification. See
Figure 1.
Motorcycles Affected
Only 2006 1450cc Big Twin model motorcycles that exhibit
cold start and/or driveability problems directly related to use
of 8
°
angle cone spray fuel injectors (including those subsequently
equipped with P&A Screamin’ Eagle 1450cc or
1550cc Performance Kits).
Required Dealer Action
1. Adhere to the flow chart in Figure 2 when handling customer
complaints regarding cold start and/or driveability
problems on affected motorcycles.
2. If the flow chart indicates that the fuel injectors are the
source of the problem, check the part numbers stamped
on the fuel injectors. While standing on the left side of
the motorcycle, the part number on the rear fuel injector
can be easily read with the aid of a flashlight.
3. If required, remove both 8
°
angle cone spray fuel injectors
following the procedure in the applicable 2006 Service
Manual. Install 25
°
fuel injectors, either part number
27709-06 or 27709-06A.
Figure 1. Fuel Injector Part Numbers
[font=helvetica
Thread Starter
|
Tourer
Joined: Feb 2008
Posts: 359
Likes: 1
From: Yorkshire,England
RE: Dyna misfire
Hi,Many thanks for the reply,armed with that service bulletin I went over to my dealer and they are going to fix it,no charge.I don,t know where you are but I'm in North Yorkshire,England and it's cold,windy and raining.TypicalBritish biking weather.Cheers.
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