12 300 running strange
 

it started 2 weeks ago when riding in the whoops the bike bogs then it sounds like it hits the powerband but its not the bike never stops running on flat ground it seems normal

Float height is the probable culprit. It might be too high and fuel keeps sloshing at the wrong time. Drop it a mm or two and see how it does, if there is no change (or it's worse), then go the other way.

i will try that first

Same exact thing happened to my 2012 300. The float height came out of wack after 4 months of riding/racing. Adjust back to factory spec and you should be good to go.

well i adjusted the float did't change a thing talked to clay he said power valave rod is rubbing there was alot of play in the rod so i adjusted it rode it yesterday still the same i think i may move on to other bike

why would you move to another bike if this might just be a simple sollution?:confused:

running out of things to check the bike is less then a year old just getting aggravated

Just a thought try removing gas cap vent line check valve.

This stuff is exactly why I have ALWAYS been cautious about buying a Gas Gas. But yet my 05 has NEVER had any problems and has Always been say Honda reliable. Every Husqvarna I have bought has been bullet proof. My new Gasser lost the gas tank bolt in less then 30 minutes of ride time. A fluke I hope. It must be something simple as to my knowledge that 300 engine is pretty darn bullet proof. And if Steve and Jay say they are just as reliable as a Husky then it should be. Keep us posted. I won't even get to ride mine until spring (new 12 300) But for the 30 minutes I rode it I will say the Ergos felt sweet the engine is electric and if it holds together I am confident I will be able to ride it fast. Did not feel like it weighs 250 pounds riding it or pushing it around. Not to tall either. Vent seems like it could be. Let us know. All bikes can have a little gremlin. Sounds pretty simple. Ignition or carb? I have NEVER had to adjust the carb float height in 20 plus years of riding so not sure why that carb would be different. I would try to fix it. That bike looks better then anything on the market and has high quality componets thru out the bike. Something minor I am sure!! Any good dealers nearby??

i also lost my tank bolt i also had the tank crack they replaced it for free i may just have a lemon it's not the vent it's something in the power valve

Well I hope you get her fixed! Do'nt frett it must be a simple fix. Again those Gasser engines are pretty tough and have not changed mush in years for a reason!

I second that. What makes you certain its a powervalve fault? The PV configuration is rock solid and very simple. It shouldn't be hard to diagnose something here. The gassers definitely take a bit more to set up perfectly than some other brands. They still have their quirks, and they still don't have the same build quality as some other euro brands and imo not even close to the japs. They do however come with a lot of goodies which saves you on aftermarket, and once dialled in will easily see out 10 years of quality riding with not much more than basic maintenance.

i do agree about what you get on the bike i think its the pv because the way it runs i toke the cover off and had a lot of play in the linkage

Got to get it somewhere that knows what they are doing. My old 05 and a buddy has a 05 and I have had other gassers and I guess never even had to clean the powervalve or think about it. Like was said once dialed should be pretty badas/ and hope not troublesome. Again let us know. Thanks.

If its just the powervalve linkage thats sloppy its very very simple to adjust/tension up. Also very easy to pull the whole valve flapper and bearings out. Doable with the engine assembled and still in the frame. A bit of a search will turn up some good results or I can post further details for you later.

Cheers

thanks jakobi i just looked the power valve adjustment i will try to get to it this weekend

There is a really good current thread with pics of all the components under the RHS engine cover and which ones to adjust. Just be sure not to remove the cover if anything is pressing against the shift shaft when you have the bike laid over.

Also try to avoid pulling on the actuator arm while its connected to the governor. It can disloge the ball bearings and cause issues. The other trick others like to use is to apply a little heat to the nylon locknut on the actuator plate before removing. A couple people have snapped the shaft off the plate being too aggressive.

Just checked and all this info is in the sticky - http://www.gasgasrider.org/forum/sho...t=9517&page=10

well still having trouble with yhe pv sticking i have done everything i even cleaned the pv it gets stuck when its fully open have to push it back down

You have to determine if its the PV parts in the cyl, or the gov/linkage binding. First guess is the rod on the case. If its the cyl parts it should be easy to find, perhaps a small burr, although I have never heard of this before.

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the valves in the cyclinder are good clean them the rod isn't toughing the case going to pull side off again

I had this problem at one point. Ended up being a bit of carbon in the cylinder where the pv drum rotates. Take the stop bolts out and disconnect the arm. You should be able to now cycle the actuator plate through a full 360 degrees without binding. I found mine would only snag and bind when trying to turn backwards sometimes. If you haven't done it already pull the whole pv assembly out of the cylinder and make sure you clean everything up really nice. Check for burrs on the cylinder and continue until you are certain it cycles back and forwards. Then reconnect it all and enjoy happy times. I replaced all my bearings for good measure on my second top end. It was cheap enough and I was giving the top end a full overhaul anyway.

done it already they are moving perfect it must be the rod or something else ttaking the side cover off again