|
 fuel problem
|
Joined: Mar 2008
Posts: 35
Greenhorn
|
OP
Greenhorn
Joined: Mar 2008
Posts: 35 |
Hey Fella's just got home from summer drilling and got my america out for a scoot and the ****** thing starved for fuel at 100mph , I like the air up there ... the carbs were rejetted to 135's I have a norman hyde high flow air intake K&N filter the bike run's a little jerky a low speeds like it is starving for fuel , I had put fuel stablizer in before I went to work 90 days ago and on the way home today  put some fresh fuel in but it is still running rough , weather was foggy and rainy but not to cold .. fuel filter maybe ?? what are your thought's
|
|
|
 Re: fuel problem
|
Joined: Aug 2006
Posts: 153
Adjunct
|
Adjunct
Joined: Aug 2006
Posts: 153 |
I'd disassemble the carbs n clean them out...I'd say after sitting 3 months without being ran combined with stabilizer in the fuel they just need a good cleanin out.
I'd also pull the petcock out of the tank and clean the screen on it as well.
|
|
|
 Re: fuel problem
|
Joined: Mar 2008
Posts: 35
Greenhorn
|
OP
Greenhorn
Joined: Mar 2008
Posts: 35 |
well I am just heading down to the shop to take a look at this it is the first time in five years that I've had a problem with stablizer in the fuel bike usualy fires right up and runs fast and smooth ....
|
|
|
 Re: fuel problem
|
Joined: Mar 2008
Posts: 35
Greenhorn
|
OP
Greenhorn
Joined: Mar 2008
Posts: 35 |
problem resolved , the carbs were set up with an UNI air filter in , I switched to the K&N and didn't re adjust the carbs ... I put the Uni back in ( heard this voice from the past , high school shop teacher what did you f*** with now , he was a dispatch rider in the war I rode an 850 norton chopper ) and she is running great in the rain had it up to 70 MPH no problem ... thanks for listening
|
|
|
 Re: fuel problem
|
Joined: Feb 2005
Posts: 988
3/4 Throttle
|
3/4 Throttle
Joined: Feb 2005
Posts: 988 |
So you switched from a UNI filter to a K&N filter and it changed the way it ran? I did the same thing and thought that maybe I was imagining that it did not run as well. So did you just adjust air mixture or did you rejet? 
|
|
|
 Re: fuel problem
|
Joined: Mar 2008
Posts: 35
Greenhorn
|
OP
Greenhorn
Joined: Mar 2008
Posts: 35 |
the carbs were rejetted 135 mains 45 idle with 1mm shims at the time I had the UNI filter in swapped out the stock snorkle air intake for a norman hyde high flow changed the stock petcock to a pingle high flow and the bike was running great ... in the spring the pollen was plugging up the uni it had to be cleaned every 2000 miles so I ordered the K&N the bike ran a little lean at high speed but since I have come home with the colder air the bike was running terrible so in the spring I will get the carbs re adjusted with the K&N filter in ... another buddy of mine on this site reminded me he had to increase his fuel by 5.5 turns to get his bike running good after putting a K&N filter in ... So it is not your imagination more air is going to require more fuel just have to get the balance right
|
|
|
 Re: fuel problem
|
Joined: Aug 2007
Posts: 10,715 Likes: 4
Should be Riding
|
Should be Riding
Joined: Aug 2007
Posts: 10,715 Likes: 4 |
5.5 turns? should maybe go up a size on the main jet
Always remember to be yourself. Unless you suck. Then pretend to be someone else.
|
|
|
 Re: fuel problem
|
Joined: Aug 2005
Posts: 2,726
Loquacious
|
Loquacious
Joined: Aug 2005
Posts: 2,726 |
Wow, 5.5 turns. Never heard of anyone doing that. Be careful they don't fall out. If that's the case, you need to go up at least one jet size. Usually 3 to 3.5 would be considered max or where you need to increase the pilot jet size.
Bob
2005 America, 904cc - sold. 2014 Trophy SE.
|
|
|
 Re: fuel problem
|
Joined: Feb 2007
Posts: 23,186 Likes: 55
Fe Butt
|
Fe Butt
Joined: Feb 2007
Posts: 23,186 Likes: 55 |
Not sure if this is what he meant but he said increase by 5.5 turns! so that would be in addition to the original setting. Starting from a lightly seated needle I don't like to go much beyond 3 turns, like stated above 3.5 max. After that up a jet size and adjust again.
I learned all I need to know about life by killing smart people and eating their brains. Eat right ,Exercise ,Stay fit, Die Anyway!
|
|
|
 Re: fuel problem
|
Joined: Mar 2008
Posts: 35
Greenhorn
|
OP
Greenhorn
Joined: Mar 2008
Posts: 35 |
well that was Nick Lowe in England that was saying he did that ( teck vault tick over problem) ,he just got me thinking ... like I said switched back to the uni filter bike is running fine ....I'll put the K&N back in next spring and adjust the carbs then , right now I just want to roll up some miles before I head back to the bush
|
|
|
|
|
|