2014 Honda Sxs700
Joined
·
1 Posts
Discussion Starter · #1 ·
I have a 2014 Honda Pioneer 700 4. It has 520 hours on it with no motor modifications. A few weeks ago it started backfiring and cutting out with loss of top end speed. Now, Ive already had the spark arrester issue a few years ago and have checked that. Machine is not acting lke that at all. Its in contact. Here is what we have checked: Spark plug (has on one this model), exhaust leak, fuel pressure, air intake, checked codes, adjusted valves, new gas, oil change, you name it. Did all that and it still backfires, has cut out completely under full throttle. Scratching our heads here, any ideas?? Thanks!!
Joined
·
3 Posts
Did you ever resolve this? Fighting the same issue now with a 2-plug 2015 700-4. Checked timing, valves, camshaft (including cam lobe specs), compression, plus all you mentioned... Cleaned throttle body, checked exhaust for obstructions, replaces head and thermostat gasket.... New fuel. Changed oil.
At speed, it loses power and backfires like crazy!
Help!
Joined
·
2 Posts
Did you ever figure this issue out? I'm having the same issue on my 2014 model. Twarnock, how did you check camshaft? Mine is running great until you get it up to speed and it won't go past 20-25 mph and sometimes start backfiring.
I've tried everything I know. I'm at the point I'm going to take it into the shop for repair.
Thanks.
Joined
·
3 Posts
Did you ever figure this issue out? I'm having the same issue on my 2014 model. Twarnock, how did you check camshaft? Mine is running great until you get it up to speed and it won't go past 20-25 mph and sometimes start backfiring.
I've tried everything I know. I'm at the point I'm going to take it into the shop for repair.
Thanks.
We checked the specs with a micrometer on the intake and exhaust lobes on the camshaft (which means we took it out.). It's now been at the dealer for 2 weeks. They've got no idea either. They've checked coil, sensors, replaced camshaft, fuel pump/pressure... still no answers. They're talking with Honda tech support. I'll try and keep you posted. Let me know if you figure anything's out! Everyone here is stumped!
Joined
·
2 Posts
Well I took my Pioneer apart last night. The camshaft lobe closest to the intact has a flat spot on it and the cam follower is cupped on the bottom. I call the dealership I bought it at and he immediately told me it was poor air filter maintenance. Which I argued. He says it was common on the big red models and on the pioneer. I told him I've seen 2 other pictures besides mine and the same lobe was the issue. I find it hard to believe that the dirt/dust getting thru the air filter would only mess up the same lobe on the intact side. Here is a picture of my camshaft.
-
881.8 KB Views: 435
Joined
·
3 Posts
mine is doing the same thing!....any more word on what happened.....i'm in the bush!....damn....
Joined
·
3 Posts
I wish I had good news. The dealer in Sumter SC kept our machine for 5 months. They talked with Honda tech support, sent videos, took measurements, etc. They supposedly swapped EVERYTHING on the Honda - some multiple times to account for new parts that might be DOA (computer, etc.). After 5 months, all they discovered was a small crack in the non-essential part of the piston (which we replaced, even though we knew it had nothing to do with the problem.) $700 in diagnostic and the piston repairs, and we picked the Honda back up NOT REPAIRED. They said they didn't know what else to do except replace the motor.
We listed the Honda for sale - with FULL disclosure on what we had done and what the problem was. Someone purchased it (actually, we traded it) and said they were sure they knew what the problem was and could fix it. 
Best of luck to them and you. Since then, I've talked to one person who said they at least had an idea. (And, since I'm not a mechanic, I'm not sure it even makes sense, but I'll repeat it here in the event it's at least a clue.) They said that the timing was off, and that it's possible that the flywheel was incorrectly positioned on the shaft. They suggested we look at the flywheel key and see if it was damaged, which would allow it to slip slightly on the shaft. No idea, and since we don't own the unit...
Good luck! Even though we don't own one anymore, I'd love to hear that someone figured it out and fixed it!
Joined
·
7 Posts
I too had a Pioneer 700 do that misfire and could go past 20mph. took to dealer and well the cam was round, valves shot.. the shop man blames it on the K& N air filter letting dirt by. i told k&n that and they laughed... the pioneer only had about 200 miles on it when this happened. i kept after them and they finally figured that is was the honda oil that i was useing. the qt can of hondaoil is not made to be used in anything as it is crap.. I figured that if honda had its name on it it should be good, NOT. no longer use that oil in any of my small honda motors ie. trimers pumps etc.. had a 2012 big red do the same thing with with about 2000 miles on it. Honda motors were supposed to be bullet proof . anyway a grand$ later they are running fine. just don't use the qt bottle only the gallon what ever honda sells for the honda. but what was bad the big red bore was pitted like it had set out in the weather to rust... have over 5000 miles on big red with no problems.. that was a grand per each to rebuild the motors..
Joined
·
3 Posts
Get this....I never read my manual, so when I changed/checked oil....I screwed in the cap THEN checked it...the book says "dip" in to threads and do NOT screw it in....HELL, I've been runnign it over a qt low! AND...
every other person in my village has also! NO ONE read the manual and everyone here has been running 4 wheelers since birth...I told the dealer that this is the only machine I ever had that you did NOT screw in teh dip stick....So, I think alot of this flat cam crap, is people tyhat have been running their motor low on oil since they are screwing in teh dip stick to check oil level....
did you guys screw it in, or just 'dip' it in to the threads?
Joined
·
7 Posts
Well I took my Pioneer apart last night. The camshaft lobe closest to the intact has a flat spot on it and the cam follower is cupped on the bottom. I call the dealership I bought it at and he immediately told me it was poor air filter maintenance. Which I argued. He says it was common on the big red models and on the pioneer. I told him I've seen 2 other pictures besides mine and the same lobe was the issue. I find it hard to believe that the dirt/dust getting thru the air filter would only mess up the same lobe on the intact side. Here is a picture of my camshaft.
Seem like all the honda people have been told to blame the air filter for there screw up on having a soft cam .. i too had a flat spot lifter concave on intake. and like said in another post i had a k&N air filter on the pioneer
Source: https://www.pioneerforums.com/threads/2014-honda-pioneer-700-4-question-stumped.74242/
Tidak ada komentar:
Posting Komentar