a couple of Q’s

[dennis da menaceMember]

i need some answer to a couple of questions fellas.

1)my 300 stalls when im going down a steep hill. it will restart easily enough but it shits me :laugh: it is at the point of doing it evrytime im pointing down with the clutch in. now, i havent pulled anything apart yet but my guess is float level. am i on the right track, what does the conglomerate of obt genius think??

2)yesterday my mate drowned his ktm200 in a bog, flooding the motor with muddy water through the back of the airbox. its a common problem with current katos as where the airbox and side plate meet inside the rear ‘wheel well’ isnt sealed and if you pin it in a deep puddle they flood.
anyway it took us an hour to get her running again. we had drained the carb, tipped bike on all different angles with the plug out while kicking it, etc. heaps of black water came out and my mate reckons it isnt the same since. i didnt get any more detail from him as he was a little shitty with me for roosting him while he was in said ‘bog’ :laugh: :laugh: :laugh:
would you think we will need to pull the barrel off and check it out, or will it be right…

[PaulMember]

very funny mr beemer :laugh: :laugh: :laugh:

but this is the TECH THREAD and for once i require some serious opinions.

sorry mate.

[GregMember]

Menace I will sit down tonight and answer both, good questions both caught me of guard coming from you

TB

[LiamMember]

1) Idle at same level as other 300s?
2) Muddy water would of found its way into most the internal bearings so most likely won’t last to long.

[dennis da menaceMember]

Diddel wrote:

Quote:

1) Idle at same level as other 300s?
2) Muddy water would of found its way into most the internal bearings so most likely won’t last to long.

1) yeah, it idles fine normally. never skips a beat.

2) thats what i reckon too but want some more opinions to show him.

[MalMember]

Mine does the same thing as Q1 Menace. Will good to find out what it might be. I have to kick start mine though.

[Brendon CarreMember]

I would run it around the block and change the oil, use a cheaper oil for this as all you are doing is flushing the motor, Do this about three times then ride it as normal could have no prob’s and keep going as normal. If you have to pull it down then you will have to rebuild anyway not much to lose really. Sooner or later motor will have to be refreshed anyway!!

[Anonymous]

Carby vent tubes….? I dunno, had a few problems with those on my 250excf

doing this sort of thing

[GregMember]

menace wrote:

Quote:

i need some answer to a couple of questions fellas.

1)my 300 stalls when im going down a steep hill. it will restart easily enough but it shits me :laugh: it is at the point of doing it evrytime im pointing down with the clutch in. now, i havent pulled anything apart yet but my guess is float level. am i on the right track, what does the conglomerate of obt genius think??

The float level would be my starting point Menace it maybe a little low, I dont know what the spec is though sorry but will find out for you tomorrow from Sutto’s workshop

2)yesterday my mate drowned his ktm200 in a bog, flooding the motor with muddy water through the back of the airbox. its a common problem with current katos as where the airbox and side plate meet inside the rear ‘wheel well’ isnt sealed and if you pin it in a deep puddle they flood.
anyway it took us an hour to get her running again. we had drained the carb, tipped bike on all different angles with the plug out while kicking it, etc. heaps of black water came out and my mate reckons it isnt the same since. i didnt get any more detail from him as he was a little shitty with me for roosting him while he was in said ‘bog’ :laugh: :laugh: :laugh:
would you think we will need to pull the barrel off and check it out, or will it be right…

Boulder’s advice is the first thing I would be doing and doing as fast as I could, the longer any water contaminated oil is left in there the more chance water damage could happen to the internals. Years ago I drowned a two stroke I had which was a KTM 250 as well, It was my fault I left the oil etc in for two weeks before I drained it, it failed a main brg that when pulled down showed it had started by rust pitting in the bearing internal surface because I had left it for so long

[Bruce CurtisMember]

TB has the good oil for you here Mr Menace, it’s the float level, the problem is not starvation but flooding if it is going downhill, you see most of us running Keihin Airstykers or the likes are in a hard place with this one. The floatbowls are of very limited volume and if you set the level low enough to eliminate flooding on downhill runs you will experience momentary starvation elsewhere. If it is indeed Starvation (less likely but does happen) on downhill runs raise the float level not by factory specs, but by holding the carb body vertical and adjusting the needle to open just above dead level, shouldn’t need rejetting and should cure any starvation.

Part II of your Q, as stated reroute hoses to airbox or up frame somewhere, put a “U-Bend” in them helps too.

BC

[Anonymous]

Menace, look on KTM Talk for ‘Float Level’, they have comprehensive instructions on how to change it holding the carby at an angle. From reading about this previously they are almost always 2mm out from the factory and most of Yanks change this straight away.

I was going to change mine but never had any issues. I blip the throttle going down hills anyway, even the gnarlier ones.

[dennis da menaceMember]

yeah, its ok in gear moto, its the really gnarly clutch in drops like into creeks etc.

it just shits me trying to blip it while im on the edge of front brake sanity :laugh:

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