trailfire

Metallica19991 · Post by **Metallica19991** » Sun Dec 02, 2007 1:44 am

neither do i ! lol... something like mikuni or something... i would rebuilt it.. and make sure gravity isn't in effect here.. gravity will just flow into the car and not stop.. thats why this is vacuum.. so make sure gravity isn't in effect here...

smitfire · Post by **smitfire** » Sun Dec 02, 2007 1:45 am

so make the hose go up hill for the gravity factor?

i dont have any gas hoses hooked up but what i dont get is with the little gas that was left in the engine first pull it will start second nothing 3 bang, boom, it was like a pattern

AND IF THE PUMPS BAD AND LETS GAS JUST FLOW TO MUCH WOULDNT A SHUT OFF VAULE BE A CHEAP FIX YOU COULD CONTROL THE SPEED OF FLOW

Metallica19991 · Post by **Metallica19991** » Sun Dec 02, 2007 1:49 am

well i would try that to see if gravity is in effect here... and if it does start then you know its the problem.. then you can figure out a way how to mount it afterwords..

smitfire · Post by **smitfire** » Sun Dec 02, 2007 1:50 am

HOW COULD U TELL IF GRAVITY WAS A PROBLEM

Metallica19991 · Post by **Metallica19991** » Sun Dec 02, 2007 2:02 am

well heres what i would do first... unhook the hole gas tank fuel lines from carb... so no gas can get to carb... then pull the spark plugs out... disconnect spark plug wires... turn off kill switch.. then pull the engine over a few times to drain all gas.. then put the spark plugs back in... connect spark plug wires.. DONT CONNECT FUEL LINES!!.. then try starting engine.. it might start because there might be a little gas in it...

If it doesn't start then hook up the fuel lines and make the intake fuel line head upwards somewhat..

If gravity was the problem it would constantly be bringing gas to the carb.. In effect if you drop say a glass it going to fall to the ground... same thing with water its going to go down... in this case into the carb... Thats why you should try making the line heading upwords a little.. that way the enigne can do its thing and suck the fuel out of the line... instead of the gravity effect..

400brian · Post by **400brian** » Sun Dec 02, 2007 3:51 am

:blink:

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Guys, STOP!!! Neither of you knows what you are talking about!

The Trailfire has a Mikuni fed Kawasaki motor with CDI ignition.

The Kioritz / CCW is a Walbro fed point ignition motor.

Mikunis are a float type carb, they have a separate fuel pump. A Mikuni will not pull fuel. As mounted in a Trailfire, the carb is lower than the fuel tank, so they can gravity flow and flood the engine while sitting if the float is malfunctioning. If the fuel pump diaphram is ruptured or otherwise leaking, it can fill the crankcase.

The CDI ignition system cannot be treated like a points system, they are different.

Smit-traifire, you could really benefit from a service manual.

I admire the enthusiasm you both have, but you both need to understand what you are working with better.

afponiky · Post by **afponiky** » Sun Dec 02, 2007 4:14 am

WOW!

I think Brian has about 4 stiches in his tongue right now.......

I wouldn't have that kind of patience with this thread!

Hats off to you Brian!

GRP

bob15 · Post by **bob15** » Sun Dec 02, 2007 9:31 am

To add to Brian, the needle and seat will also play a roll in the flooding of an engine as well as the floats. If the needle has a piece of debris under it, it cannot seal against the seat, thus a leak into the carb and cylinder.

I noticed an earlier post that mention turning the kill switch off and crank it over. that's fine, but remember that with CDI ignitions, you must keep the plugs in the boots and ground them if you keep the switches in the run position. If not, CDI damage can occur. Personally, if I pull the plugs out to crank it over, I automatically put them back in the boots and after a couple pulls to clear any gas out, I will look to see what type of spark I have (not saying this is your problem, but rather something to get in the habit of in the future).

Pull the carb apart and clean it. You might want to replace the fuel pump and start with a new one, which should be clean. At the very least, replace all fuel lines add new fuel filters. Might also want to replace the fuel line in the tank as well. Start with a known clean fuel system. To do all this doesn't cost very much and is a relatively quick job.

bob

Deere or Nothin' · Post by **Deere or Nothin'** » Sun Dec 02, 2007 10:29 am

I just spent half an hour+ reading this whole thread, and here's my thought. It's totally the pump. Here's why, and please, if I've missed something, correct me. At the start, the machine didn't run, so the pump was cleaned. Is it possible that before the pump was cleaned, it was gummed right up and plugged? Then, after having been cleaned, it was put together improperly or cleaning just allowed the old problem of crank case flooding to recur. Maybe the only reason the crank case wasn't flooding before the cleaning, was because the pump was plugged. I would say yank the pump, take it apart,clean and inspect it. If there is ANY doubt about the condition of any of the diaphrams or gaskets, put a kit in it or replace it. Do you have access to a pump on another machine that is running? Try swapping the two.

smitfire · Post by **smitfire** » Sun Dec 02, 2007 11:03 am

so your saying the pump is bad by letting to much gas flow or gas flow just dosent stop and a shut off value couldnt cure it

i do have a tech mannual

by the way thanks to everyone for there time and help

smitfire · Post by **smitfire** » Sun Dec 02, 2007 11:06 am

also can i get an explination on how the pump should work
i thinks thats what it is

when i take the hose off the pump that runs to the carb (disconnected by the pump) gas runs out and dosent stop but when it worked right it would shoot a small amout (pulse) everytime you pulled it which is right?

Deere or Nothin' · Post by **Deere or Nothin'** » Sun Dec 02, 2007 11:06 am

I think fuel is flowing through your pump and into your crank case via the pulse line. It's probably a bad diaphram in your pump.

Deere or Nothin' · Post by **Deere or Nothin'** » Sun Dec 02, 2007 11:08 am

Try taking the hard black hose that goes to the crank case off. If gas comes through there, your pump is pooched.

smitfire · Post by **smitfire** » Sun Dec 02, 2007 11:09 am

also can i get an explination on how the pump should work
i thinks thats what it is
look up to my previous posts is it supoosed to run out or shoot every time you pull it

i think its the pump to as we had similar problems with anothere sled and the pump was it

Deere or Nothin' · Post by **Deere or Nothin'** » Sun Dec 02, 2007 11:17 am

I don't think there should be gas there at any time. The pulse line runs the fuel pump using pressure from the crank case to move a diaphram in the pump that transfers gas to the carb. There should be nothing but air in there.