Air Screws/ Pilot Jet Advice

[Spark X]

Having a bit of a intermittent problem with my bike and thought I would run it through here, before I go and play around with the carbs anymore.

 

The Stats:

2010 Banshee - All stock apart from listed air box mod

Snorkel removed and large hole cut in lid with outerwears (Very similar to the modified EHS racing air box lid you can buy)

Mains 220 (Changed it from 200 to accommodate air box mod)

Pilot: 25

Needle clip position #3

Air screws: 1 1/4 turns out ( Changed from 2 turns out)

Elevation: Sea Level to possibly 100ft

93 octane gas

32:1 mix

 

 

The background info:

Starts first kick every time (I pull the choke out all the way, then put it back in within 3-4secs of it running) idles fine. Warm it up and then go riding.

Runs fine at WOT.

 

 

The problem:

After I've been riding for a little bit, (and the problem seems a bit intermittent because it's not happening all the time during the ride) I can be at WOT and then release the throttle to down change gear etc. and then go to give it throttle again and it will bog down and want to die. At this point I usually pull the clutch in and come to a stop with it idling (idling fine) and when I go to give it some throttle it bogs and still wants to die.

 

I've found that if I give the throttle a few stabs (going from idle - 3/4) for a bit, it will come good. But if I slowly apply the throttle it wants to die. Once it's come good again, I can give it throttle slowly and it will rev normally and I can go on riding fine, until it occurs again.

 

On even rarer occasions when I have been at WOT and then release it and go to give it throttle again it will backfire once maybe twice and then does what I explained above (bogs and wants to die). The backfire might happen once or twice during an entire ride.

 

My theory:

Because it bogs and wants to die occasionally just off idle, it possibly might have to do with the air screws/ pilot circuit (lean a bit maybe?) . It's just got me a little stumped because it's not happening at all times throughout the ride. Possibly go up a size on the pilot? Turn the air screws in a bit more?

 

 

Sorry for the long story, I just thought the more info I give the better.

 

Any advice is much appreciated

[BMP]

Having a bit of a intermittent problem with my bike and thought I would run it through here, before I go and play around with the carbs anymore.

 

The Stats:

2010 Banshee - All stock apart from listed air box mod

Snorkel removed and large hole cut in lid with outerwears (Very similar to the modified EHS racing air box lid you can buy)

Mains 220 (Changed it from 200 to accommodate air box mod)

Pilot: 25

Needle clip position #3

Air screws: 1 1/4 turns out ( Changed from 2 turns out)

Elevation: Sea Level to possibly 100ft

93 octane gas

32:1 mix

 

 

The background info:

Starts first kick every time (I pull the choke out all the way, then put it back in within 3-4secs of it running) idles fine. Warm it up and then go riding.

Runs fine at WOT.

 

 

The problem:

After I've been riding for a little bit, (and the problem seems a bit intermittent because it's not happening all the time during the ride) I can be at WOT and then release the throttle to down change gear etc. and then go to give it throttle again and it will bog down and want to die. At this point I usually pull the clutch in and come to a stop with it idling (idling fine) and when I go to give it some throttle it bogs and still wants to die.

 

I've found that if I give the throttle a few stabs (going from idle - 3/4) for a bit, it will come good. But if I slowly apply the throttle it wants to die. Once it's come good again, I can give it throttle slowly and it will rev normally and I can go on riding fine, until it occurs again.

 

On even rarer occasions when I have been at WOT and then release it and go to give it throttle again it will backfire once maybe twice and then does what I explained above (bogs and wants to die). The backfire might happen once or twice during an entire ride.

 

My theory:

Because it bogs and wants to die occasionally just off idle, it possibly might have to do with the air screws/ pilot circuit (lean a bit maybe?) . It's just got me a little stumped because it's not happening at all times throughout the ride. Possibly go up a size on the pilot? Turn the air screws in a bit more?

 

 

Sorry for the long story, I just thought the more info I give the better.

 

Any advice is much appreciated

 

TORS problem maybe?

 

Brad

[Spark X]

Mmmm, yeah didn't even consider the TORS system. The bike is only 2 months old from new, can you start having problems with TORS that early on?

 

Well its a start and I was going to remove the TORS anyways at some point, I guess it's now given me the motivation to get rid of them sooner and see if the problem persists.

 

If any one has any other suggestions, I'd like to hear from you

[rdzbangshee]

Mmmm, yeah didn't even consider the TORS system. The bike is only 2 months old from new, can you start having problems with TORS that early on?

 

Well its a start and I was going to remove the TORS anyways at some point, I guess it's now given me the motivation to get rid of them sooner and see if the problem persists.

 

If any one has any other suggestions, I'd like to hear from you

sounds like the piston rings are not seated yet . make sure the choke crossover tube is on between the carbs. re adjust the four carb throttle cable screws to make the carbs open and close the same they must be perfect. TORS are bad luck to . try some 90 octane gas for a slower burn cooler temps and more compression . detonation is bad usually caused buy to much fuel . and the banshee stock jetting is kind of rich from the factory with the stock exhaust. .i ran stock 200 jets year round in my 1987 banshee with a k&n fmfs and boyesen reeds ran like a champ . I tried 210s and 220s in the winter they were to rich so i went back to stock. ow and i had a boost bottle it helps the Bogey throttle problem go away. these setting worked good for my banshee from sea level to 1800ft alt.

[shakar]

sounds like the piston rings are not seated yet . make sure the choke crossover tube is on between the carbs. re adjust the four carb throttle cable screws to make the carbs open and close the same they must be perfect. TORS are bad luck to . try some 90 octane gas for a slower burn cooler temps and more compression . detonation is bad usually caused buy to much fuel . and the banshee stock jetting is kind of rich from the factory with the stock exhaust. .i ran stock 200 jets year round in my 1987 banshee with a k&n fmfs and boyesen reeds ran like a champ . I tried 210s and 220s in the winter they were to rich so i went back to stock. ow and i had a boost bottle it helps the Bogey throttle problem go away. these setting worked good for my banshee from sea level to 1800ft alt.

man .....u must work at a dealership ?? :

[06specialedition]

Even if its not your TORS..Id get that shit off the bike ASAP or your bound to have issues