Another bogging issue!

roppin · Feb 16, 2013

Ok, 2011 Assault 800 with really annoying bogg issues.

-changed fuelfilter
-changed and adjusted tps
-"plugged" the gas switch in the handlebar
-new plugs
-have got my blue injectors tested in a injector tester with no problems found
-comptested
-no trouble codes when polaris plugget it into the computer

The sled hesitates when climbing and only when i pin it.

It boggs / hesitates alot more with the 10% eth plug, even on trail riding. With the high octane plug it only hesitates in harder conditions.
Ive heard that it gives 5-10% more fuel with 10% eth plug, is that true?

Here is a clip that shows the boggs:

http://youtu.be/uv1ZTrg0Qzc

So whats next? New injectors? Fuelpressure or something else? :face-icon-small-dis

blindman · Feb 16, 2013

same thing for me on my 12 rmk

crap

polarisperformance · Feb 16, 2013

Same thing with my SBA 2011....I will try new sparkplug wire from SLP next week .
-new fuel filter
-new injector

locknload · Feb 16, 2013

Have u checked for broken or loose motor mounts, clutches clean? new clutch springs? I had a 700 edge with a bunch of performance parts that did something similar until i added a torque arm and push arm. Just something to think about.

Flygti32 · Feb 16, 2013

also check to see if your stator has a ground short from a rubbed wire. I have seen this cause a troublesome bog.

900problem · Feb 16, 2013

800 bogging

Is your primary clutch spring broke? All the 800's are breaking.

polarisperformance · Feb 16, 2013

900problem said:
Is your primary clutch spring broke? All the 800's are breaking.

No broken primary spring, we can clearly see in this video that this is an engine issues/ bogging. Just try to find what issues is causing this bog.

-Not fuel filter
-Not injector
-not spark plug
-not tps
-not dirty VES
-Maybe spark plus wire + cap
-Maybe coil
-maybe Ves selenoid

Someone have idea of what it should be

9fingerracing · Feb 16, 2013

bog

Check reeds? I had a bog off the bottom. Poor Idle. Took 3-4 pulls to starrt. Mag side reeds were chipped on my 13. Dealer replaced. Runs like brand new again. 500 miles on sled

roppin · Feb 17, 2013

But why does it bog so mutch more with the 10% eth plug?

I can do the same test with the other high octane plug without a bog!
Then it just shows up in really mutch pow and when climbing.

Feels like must be some kind of fuel issue?

Have cleaned the VES extremly well.

locknload · Feb 17, 2013

If you think its a fuel problem hang a fuel pressure gauge on it and moniter it. check voltage at fuel pump, maybe even hang a remote volt gauge on handlebars to verify voltage not dropping off when bog occurs. Dont overlook the simple stuff like clutching, motor mounts or a badly worn belt.

roppin · Feb 17, 2013

Will try some new injectors tomorrow and maybe also another ECU, hope it works!!

Ill keep u updated

roppin · Feb 19, 2013

Just tried the new ECU and injectors.. SAME ****ty boggings!!

Same problem as before --> more boggings with 10% eth plug and less with the high octane plug..

Feels like i have checked the whole fuel system now, besides a new fuelpump.

Whats the fuelpressure supose to be on a pro??

beamslayer · Feb 19, 2013

60 psi for the pump

beamslayer · Feb 19, 2013

When it bogs hit the kill switch and check the plugs to see if they are wet it could be a fuel resister or try someone else fuel plug .
How many miles , have you done a compression check ,or a leak down .
You say it is not throwing a code ? Check your clutch over good I chased one for a month and a half trying to find out why it bogged turned out to be the clutch I just had rebuilt .

roppin · Feb 19, 2013

beamslayer said:
When it bogs hit the kill switch and check the plugs to see if they are wet it could be a fuel resister or try someone else fuel plug .
How many miles , have you done a compression check ,or a leak down .
You say it is not throwing a code ? Check your clutch over good I chased one for a month and a half trying to find out why it bogged turned out to be the clutch I just had rebuilt .

Dont know miles but 2000 kilometers.
Yes i have checked the compression.
Im just changing to std 10-66gr and org gearing to se if it is hitting some sort of "to fast rpm switch" like when you have a belt failure.

What did u find wrong in your clutch??

It boggs on my botth fuel plugs, so i guess its not the plugs.

Thanks for helping

beamslayer · Feb 19, 2013

The rollers where worn out,the buttons where flat and their had to be .090 clearance between the buttons and towers and could spin in the spider,The moveable sheave rocked back and forth excessive it looked like it had 50,000 miles on it . Not what you would expect from a rebuilt clutch with less than 150 miles on it.
I do not know what happened or why it looked like it did but I sure was PO.

polarisperformance · Feb 19, 2013

Install and try AFR today.
12,2 to 12,8 at 8300 when it pull good
14.8 to 15 when it's bogging for 5+ sec

Really bog solid today as the temp outside is higher (-3C)

roppin · Feb 19, 2013

Ok, just changed to stock weights and gearing and springs. All looked fine and it still bogging.

Maybe try something with the VES is next?
The wires/tubes are fine. Ill tryed to disconnected them and testride and it was similiar issues like my boggs just worse, so maybe its worth a try to change the powervalve solenoid?

slimboydew2 · Feb 20, 2013

The issue on my 2011 ended up being a problem with some loose wires in the throttle/kill switch housing and it was bogging due to the throttle over ride sensor i guess. Easy fix. It was keeping the clutch from being able to engage.

See other bogging form if wondering what mine was doing exactly.

Reg2view · Feb 20, 2013

My 11 Pro just started doing the same thing, only on WFO pulls, never predictable, can shut it down then restart, and it may not do it for 10 minutes, but once it starts, it keeps happening. Not an overrev or soft deto, I have experience with those, too. I have an extra new primary. Just starting to work through the list. This has been an issue for others since the CFI-2 came out, others have chased it, and the fix has been varied, an elusive for some.

Another bogging issue!

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