First time working on multiple carbs on the Trashboat

[DGXSER]

It may or may not be convenient, but, try to cut the engine when it is acting up, not wanting to go above 4k. Then look at the plugs, see if they are wet, black, white....etc.

[sparkfly88]

So when it flips out, kill switch it, clutch it in, stop and check plugs.

Got it.

[donebysunday]

kill it

The kill switch is a bit delicate, for emergencies only use it if needed other wise use the ign. switch. Kill switch is only good so many times.

Then yes turn off the engine whatever way you can and check the plugs, most likely will only tell you if one or more the floats are hanging.

[sparkfly88]

Well I rode on the highway for the first time today.


Everything on the bike works fantastic.... Except the fuel gauge, and the throttle issue.


I only need to move the throttle about a half inch for full throttle, I don't know if that's normal, but if I go any farther than that, the bike does its "miss miss miss choke cough blah" routine.

It is kinda sluggish and coughy ( not back firing) below 3k rpm.

The moment it gets above that, I take off, till I hit around 5-6 K. That's when it does its cough cough.

I can stay at 70mph no problems, but anything above that it doesn't like at all.

Tomorrow I'll take it for a run after work and pull the plugs.

Today was a good wiring stress test though, I got poured on twice. Ugh.


I think I did 60 miles today if I remember right,

I just looked... 65.2.

Some highway, some city.

I used over a half tank.

Normal?

[bikerphil]

Sounds like you are running rich, check your plug color.

[sparkfly88]

Have the feeling I went from one extreme to the other? Lol...

[WMarshy]

The kill switch is a bit delicate, for emergencies only use it if needed other wise use the ign. switch. Kill switch is only good so many times.

Then yes turn off the engine whatever way you can and check the plugs, most likely will only tell you if one or more the floats are hanging.

Id disagree with your comment about the switch. Kill switch works fine for me, I use it 99.99% of the time to kill the engine then turn the key off. Its lasted over 50k miles so fay. Id say there is no concern with using it and would even go to the other extreme abd encourage you to use it. Funny things happen to switches and relays when they sit ununsed for long periods of time.


Id say your milage isnt too far off even with the conditions described. Go buy some Seafoam and add half a can to a full tank, ride it around some and then let it sit a day or two...rinse and repeat. Do let us know what your plugs look like though.

[motoman]

Sounds like you are running rich, check your plug color.

+1......way rich......that thing has gotta be dumpin' some serious fuel.......surprised its not runnin out the exhaust............

[sparkfly88]

So it's pouring rain out here all day...

Say it is running rich and my plugs are dark...

How would I fix this condition?

Carbs have been cleaned twice, float levels set, all jets replaced, intakes are new... Coils, plugs and wires are new.
C clips on the needles are in the middle position.

[motoman]

So it's pouring rain out here all day...

Say it is running rich and my plugs are dark...

How would I fix this condition?

Carbs have been cleaned twice, float levels set, all jets replaced, intakes are new... Coils, plugs and wires are new.
C clips on the needles are in the middle position.

Sorry, haven't bothered to read back thru the threads to see what jets, the kind, and what exhaust and intake set-up your tryin' to run, but you definitely have an over-fueling issue, whatever the cause.

[sparkfly88]

Riddle me this, riddle me that....


Plug one


Two



Three



Four

[bikerphil]

Those plugs look pretty good, not overly rich.

[sparkfly88]

I was sold on it being rich... I swore it was going to be.

Guess I have some other problem.

[skids]

I agree: plugs look good FOR THE RPM AND TORQUE THAT THEY WERE COLORED-UP FOR. (caps for emphasis of course)

[DGXSER]

OK, sp the plugs look fine, but it is bogging out like its got to much fuel. Well, maybe it does have to much fuel, for the spark it is getting.

Not sure if this is a similar situation from your description, but, I had a local XSives bike in my mancave working on a similar issue. It would start and idle ok, occasional pop or miss at idle. Then you had to rev it up above 3k to get it to take off and then once it got moving it would miss and sputter something awful with any kind of throttle input. You could just barely give it throttle and it would slowly pick up speed.

Eventually I got it narrowed down to bad coils.