449 running poor help

[dale ogden]

hi i am new to the forum so thanks for any help in advance, i have just got a 2011 te 449 i went out today on it and it seems to run fine in the first 3 gears but in gear 4 is seems to splutter and miss fire ,the bike is fitted with a full aprorovic ti exhaust ,and i have put a new spark plug,new oil and filter ,and cleaned air filter, the guy i got it from had not used it for a long time,so i changed the fuel, any ideas thanks

 

[danny318]

Check the ground wire that comes off of the spark plug area and goes to the left side of the engine. It often breaks inside the insulation.

 

[dale ogden]

Check the ground wire that comes off of the spark plug area and goes to the left side of the engine. It often breaks inside the insulation.

hi thanks danny will have a look tomorrow

 

[Dangermouse449]

If it has sat still for a while, there may be contaminants in the fuel & it may have a blockage of the fuel filter. It might explain why it runs ok in the lower gears (not so much fuel needed to pull through those gears)
It is a gauze bag on the fuel pump in the second tank. If it is all brown/black on inspection, that may be it.

Unfortunately it isn't available as a Husky part that i know of (Whole pump is no.13 in the pic)

Contact Zip-ty racing here on the CH forum, he is looking at doing a stainless filter I believe.

 

[dale ogden]

If it has sat still for a while, there may be contaminants in the fuel & it may have a blockage of the fuel filter. It might explain why it runs ok in the lower gears (not so much fuel needed to pull through those gears)
It is a gauze bag on the fuel pump in the second tank. If it is all brown/black on inspection, that may be it.

Unfortunately it isn't available as a Husky part that i know of (Whole pump is no.13 in the pic)

Contact Zip-ty racing here on the CH forum, he is looking at doing a stainless filter I believe.

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hi dangermouse thanks for the reply i will have a look at the pump asp thanks .it sounds like you sey to me need more fuel in hi gears.

 

[Dangermouse449]

Not so much more fuel needed, just it takes longer at wide open throttle to pull through the higher gears. So it might starve for fuel before the throttle is closed & the system gets to recover.
Could be something else, but that's a fairly typical fuel filter situation on most vehicles...

 

[rabskyline]

Fuel restriction rather than sludgey ?
I'd empty it, do a service and clean and throw a new plug in it just to be safe.

 

[Dangermouse449]

Also, it's been noted that the pump o-rings aren't great.

 

[dale ogden]

hi thanks danny will have a look tomorrow

hi i have checked the wire and it seems fine thanks

 

[dale ogden]

bit of a update on the bike i checked the earth wire and it was fine, so i filled up with fresh fuel.with a splash of injector cleaner and went for a run the bike is now running better but its still spluttering a bit but its much better will have a look at the pump at the weekend thanks for all the help

 

[dale ogden]

bit of a update on the bike i checked the earth wire and it was fine, so i filled up with fresh fuel.with a splash of injector cleaner and went for a run the bike is now running better but its still spluttering a bit but its much better will have a look at the pump at the weekend thanks for all the help

ok i have had a look a the pump and it all seemed clean so i put everything back together and now the bike wont start can somebody help please, i have disconnected the fuel pipe to the injector and pressed the starter and fuel pumped out so i think the pump is ok wot should i try next? help