Engine periodically sputs

[Phil Baum]

At cruising speed engine warm and sometimes it spits or sputs. Any clues? (K9)

 

[Mickeetwo]

Do you have a spike air filter, is the stumble around 65mph?

 

[Slick117]

Why don't you try here.

http://www.bigdogbiker.com/forums/introductions.2/

 

[Alexey]

Why don't you try here.

http://www.bigdogbiker.com/forums/introductions.2/

 

[BWG56]

Why don't you try here.

http://www.bigdogbiker.com/forums/introductions.2/

you on the ball Slick

 

[BadDawg Bill]

Hey, I occasionally fart too so I don't think it's a big deal or a problem...

 

[BWG56]

Hey, I occasionally fart too so I don't think it's a big deal or a problem...

At our age that could be a big problem

 

[SMCT]

Try a tank of fuel with less octane. 89 or 87

 

[chubs]

At our age that could be a big problem

I'm not real sure, but I don't think farts are supposed to have lumps!

 

[Marky-Marc]

Hey, I occasionally fart too so I don't think it's a big deal or a problem...

His problem lies in his Suckdenator......

 

[BWG56]

I'm not real sure, but I don't think farts are supposed to have lumps!

Leave it to Chubs to take it to another level, that's fkd up

 

[Phil Baum]

Do you have a spike air filter, is the stumble around 65mph?

Yes. Speed is correct also..........

 

[Marky-Marc]

HERE is your answer.....

 

[chubs]

His problem lies in his Suckdenator......

My pit has a habit of stutterin at about 60 too! twist the grip and she picks right up and smooths out. I kinda leanin towards a fouled suckdenator also! Already replaced the blowfer valve, and all electrical fluids, with no change. Yep, it's gotta be the suckdenator! Ya don't happen ta have 8 or 10 layin around on a shelf, do ya Marky? P.S. lookin for a red one ta match the frame!

 

[Marky-Marc]

My pit has a habit of stutterin at about 60 too! twist the grip and she picks right up and smooths out. I kinda leanin towards a fouled suckdenator also! Already replaced the blowfer valve, and all electrical fluids, with no change. Yep, it's gotta be the suckdenator! Ya don't happen ta have 8 or 10 layin around on a shelf, do ya Marky? P.S. lookin for a red one ta match the frame!

You have to re-route the SUCKDENATOR valve and tube BACK into the frame dammit JIM!!! It's leaking into your fucking CARB now????!! Then re-tune your air/fuel ratio on your carb!!!! Your mechanic fucked up bro!!!!! Get a new mech!

 

[BadDawg Bill]

I'm glad you guys caught on to the suckdenator because I'm so tired of answering those posts...

 

[chubs]

You have to re-route the SUCKDENATOR valve and tube BACK into the frame dammit JIM!!! It's leaking into your fucking CARB now????!! Then re-tune your air/fuel ratio on your carb!!!! Your mechanic fucked up bro!!!!! Get a new mech!

So, ya think it's possible that the blowfer valve might be installed sideways, causing the electrical conjunctions to plug up the orifices in the frame?? Shouldn't the suckenator unplug that mess?

 

[chubs]

I'm not much good as a wrench, but I make a pretty fair screwdriver!

 

[HMAN]

Yes. Speed is correct also..........

Try changing the orientation of your spike air filter. If its forward, point it up, and vice versa....and check if the auxiliary bowl vent screw has been removed? S&S recommends removing it when changing breathers.

 

[Marky-Marc]

Try changing the orientation of your spike air filter. If its forward, point it up, and vice versa....and check if the auxiliary bowl vent screw has been removed? S&S recommends removing it when changing breathers.

On a serious note, Harry is correct. I've been running mine straight up for as long as I can remember....if the air filter was just thrown on, and the bowl screw was not removed, it will cause this issue.