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Thread: 2007 400EX Smoking no more than 35 hours

Started 2 months ago by rooster300ex
If the air filter wasn't maintained properly that could cause the rings to go bad by letting dirty air get into the combustion chamber
Site: ATV Riders Source  ATV Riders Source - site profile
Forum: Powertrain  Powertrain - forum profile
Total authors: 7 authors
Total thread posts: 10 posts
Thread activity: no new posts during last week
Domain info for: exriders.com

Other posts in this thread:

IcutMetl replied 2 months ago
Keeping your air filter religiously clean is a big step in owning a long lasting engine.

coryatver replied 2 months ago
quote: Originally posted by rcracer It started smoking at 3 weeks old, I took it to the dealer and they said the air filter was so packed with mud that it had run rich and washed the cylinder walls with gas and the smoking will stop after a few runs. Well I hadn't even rode the wheeler out of my friends pasture it hadn't ever gone through water or mud we mainly used it to ...

rcracer replied 2 months ago
We tried to take it to Hectors Honda in Jamestown, they said seeing you didnt buy it here we will get to it when we can, it could be a couple of months.........so we didn't have any luck there also.

coryatver replied 2 months ago
quote: Originally posted by rcracer We tried to take it to Hectors Honda in Jamestown, they said seeing you didnt buy it here we will get to it when we can, it could be a couple of months.........so we didn't have any luck there also. wow that is horrible. Obviously you are there because you are not happy with another dealer and they could gain another frequent ...

John Noftsinger replied 1 month, 3 weeks ago
I thought if you take out baffle without jetting your leaning it out? and the airfilter being packed with mud will kill a motor if ridden long in that condition.

rcracer replied 1 month, 3 weeks ago
They said the air filter was plugged but it never was that was one of the things we checked before we took it inat the most it had some hay seed NO MUD or heavy dirt, even with the baffle out it was real thick trail riding at lower speeds because of the amount of turns and timber laying in trails.

sonof_perdition replied 1 month, 1 week ago
A few calls and some well written letters as well as emails to everyone that works at the location you bought it as well as honda corporate might get the ball rolling in your favor. Just dont cuss or swear in your letters or calls. Be patient and very persistant. Who is going to win?

rcracer replied 1 month, 1 week ago
We wrote some very polite letters and the only thing we got was aletter from Honda customer service stating they had contacted the dealer and was told it was customer abuse and lack of maintenance, there isn't even scrathes on the plastic, and nobody at any level at the dealership ever responded.

lpmaster replied 1 month, 1 week ago
is there any kind of residue on the plug itself, generally if you're bruning enough oil to present a constant stream of smoke it will be pretty apparent on the plug itself. also does it smoke no matter the temp of the bike? as in once it warms up does the smoke decrease or increase? maybe a short vid of the smoke? water in your gas?

 

Top contributing authors

Name
Posts
rcracer
4
user's latest post:
2007 400EX Smoking no more than...
Published (2009-11-11 16:01:00)
The plug is a little dark, but not oil fouled by any means. It smokes less when warm but it does leave a trail of smoke anytime. I have a 1990 Yamaha that has been used and abused since new and it still doesn't smoke and starts much easier than this honda does. QUESS I GO BACK TO YAMAHA if I can unload this junk.
coryatver
2
user's latest post:
2007 400EX Smoking no more than...
Published (2009-10-17 21:37:00)
quote: Originally posted by rcracer We tried to take it to Hectors Honda in Jamestown, they said seeing you didnt buy it here we will get to it when we can, it could be a couple of months.........so we didn't have any luck there also. wow that is horrible. Obviously you are there because you are not happy with another dealer and they could gain another frequent customer if they took care of you. They must not like to make money
IcutMetl
2
user's latest post:
2007 400EX Smoking no more than...
Published (2009-11-11 19:10:00)
I would take a bunch of very detailed pictures of your 400ex, showing it's good condition. Take pictures of the plug, compression tester, various parts of the engine, etc. Contact Honda again, and send them this information- explain to them in the most professional way possible that what your dealer claimed was wrong and detail how you maintain your 'wheeler. I would also throw in the part about your 1990 Yamaha. In my opinion, a...
rooster300ex
1
user's latest post:
2007 400EX Smoking no more than...
Published (2009-10-15 22:25:00)
If the air filter wasn't maintained properly that could cause the rings to go bad by letting dirty air get into the combustion chamber
John Noftsinger
1
user's latest post:
2007 400EX Smoking no more than...
Published (2009-10-28 02:14:00)
I thought if you take out baffle without jetting your leaning it out? and the airfilter being packed with mud will kill a motor if ridden long in that condition.
sonof_perdition
1
user's latest post:
2007 400EX Smoking no more than...
Published (2009-11-10 16:11:00)
A few calls and some well written letters as well as emails to everyone that works at the location you bought it as well as honda corporate might get the ball rolling in your favor. Just dont cuss or swear in your letters or calls. Be patient and very persistant. Who is going to win?
lpmaster
1
user's latest post:
2007 400EX Smoking no more than...
Published (2009-11-11 08:31:00)
is there any kind of residue on the plug itself, generally if you're bruning enough oil to present a constant stream of smoke it will be pretty apparent on the plug itself. also does it smoke no matter the temp of the bike? as in once it warms up does the smoke decrease or increase? maybe a short vid of the smoke? water in your gas?

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