Strange running problem,backfiring,bogging

[EP82JM]

Hi,just looking a bit of advice on where to look to solve this problem

 

Took the banshee out there and hit what I thought was a small puddle,next thing I drank half the puddle and wore half the mud.

 

Not 100% sure on whether the problem was there before or not as I had only just went out but I noticed at first that it seemed as thought the throttle was randomly sticking.

 

Next I noticed what was actually happening was that when I even slightly touched the throttle,usually where you would find a bit of slack before power would engage,that the bike is revving fully at that point and sounds very raw.

 

I then noticed it no longer idles and just bogs out.

 

Then after bringing it back to the house I noticed it was back firing ever so slightly and would throw a flame from the right hand exhaust sometimes whilst also smoking a lot less from the same side.

 

I have a short video to try show it a bit better

 

(and no it isn't mixed wrong blue smoke wise and at that point of throttle normally you'd get nothing/very slight acceleration)

 

Anyone any ideas where I should be looking first or even what it could be?

 

Thanks

Edited October 18, 2014 by EP82JM

[trickedcarbine]

Take the carbs apart and thoroughly clean them, clean filter and air box, pull apart all electrical connections and spray them with contact cleaner or brake cleaner then re assemble with dialectric grease, spray brake cleaner through throttle cable till it comes out fairly clear and follow it with lube, clean throttle assembly and lube it. See where that gets you.

 

Do this right away and get the bike revved up and cleaned out. You could still have a little bit of water in the crank case. So it could be goofy till you get it cleared out.

Edited October 18, 2014 by trickedcarbine

[Larry's Shee]

Check inside stator cover. Clean/dry/grease plug caps.

[trickedcarbine]

Teuchè on inside the stator cover.

[EP82JM]

Thanks will try everything above. Although the fact that I'm in Ireland means it's night time now so it will be tomorrow before I get to it,hopefully that doesn't effect anything although water lying in it couldn't be good for it.

 

Would the stator explain the way it almost revs fully on the slightest bit of throttle? Or would that relate more to the carb part?

[Larry's Shee]

For whatever reason the stock carbs have an issue of sticking if the slides get a little water in them. Seen a funny youtube vid of a banshee running away without rider just as he got it out of a mud hole.

 

If you have water inside stator cover be sure to dry it out very well. If gasket is bad, use silicon on intall, make sure wires are sealed at cover and sheath is good.

[ETR174]

Carb slides are sticking for sure. Mine does it about every month after letting it sit. I fixed it recently by taking a file and filling down the little track that the slide folows and that fixed my problem. Make sure also to take a paper towel or two and wipe off the slide and the barrel inside the carb body that the slides lowers down. You may occasionally find some gas and that will cause throttle sticking after some setting.

[EP82JM]

Thanks for the advice everyone.

 

Got it built back up tonight after trying all of the above. Not sure on exactly what the problem was but I think dirt/water/grit got into the carb and made the cable/slide stick a bit or something,one was very dirty around the spring when I opened them. Going perfect again though and I will be avoiding the major puddles for now lol.

 

Thanks

Edited October 20, 2014 by EP82JM

[ETR174]

What air filter set up are you running? That can be an idicator on why water is getting in there. Also before you take it out, my advice is to just push your thumb throttle all the way in. If you get maybe 7/8 of the way through the throttle and you have to push more to get it to go wot then it is still dirty. if you quickly release it too you should hear one of the carbs bottom out at a different time than the other.

[trickedcarbine]

What air filter set up are you running? That can be an idicator on why water is getting in there. Also before you take it out, my advice is to just push your thumb throttle all the way in. If you get maybe 7/8 of the way through the throttle and you have to push more to get it to go wot then it is still dirty. if you quickly release it too you should hear one of the carbs bottom out at a different time than the other.

You should not hear the carbs bottom out at different times. Hearing one bottom after the other means carbs are out of sync.

[EP82JM]

What air filter set up are you running? That can be an idicator on why water is getting in there. Also before you take it out, my advice is to just push your thumb throttle all the way in. If you get maybe 7/8 of the way through the throttle and you have to push more to get it to go wot then it is still dirty. if you quickly release it too you should hear one of the carbs bottom out at a different time than the other.

Just an aftermarket filter inside the standard air box. Lid is just off in the video. The water I hit covered the full quad and myself right up to my face,that's from splashing,I was not driving through the sea up to my head lol, there was mud and water in the airbox so I'm presuming it sucked up water and grit. All fixed now and going 100% again like it was before

[ETR174]

You should not hear the carbs bottom out at different times. Hearing one bottom after the other means carbs are out of sync.

No mine when the slides stick will stick wot for a split second so you hear the first one bottom out and then a split second later you hear the other one drop.