Bike repetitively stalls 09 Mastiff

[Dion Broda]

I just had the ehc and wire harness replaced with the rip the bike is carburetor 117 also replaced starter starter relay and magnetto The bike stalls every block won't restart until it cools can't check spark or fuel cause it does it while it's running any help much appreciated

 

[Jwooky]

First thing I would try is to loosen the gas cap. Some of the old ones would clog and stop venting

 

[Sven]

Say the ech to rip wiring is OK since the bike will run. So that says a wire can't reconnet itself so as to restart. Heart beat of a computer bike is the crank sensor. Warms up, stalls, cools, restarts sound like a crank sensor problem.

1. Diagnose: Ohmmeter in pocket, bike stops, instantly pull the crank sensor apart and ohm the C/S. In the morning, ohm it cold. Are the readings the same?

2. Throw parts at it: Hard to find a C/S out of spec, but when changed, running is solved.

3. What Jwooky said: Fastest way to vacuum lock is top the tank of to the brim. Should stall closer to home than when it warms up to running temp.

 

[knothead]

Crank sensor

 

[Mr. Wright]

He ain't running it long enough for it to vapor lock. I'm siding with Knothead, Crank Sensor.

 

[Dion Broda]

He ain't running it long enough for it to vapor lock. I'm siding with Knothead, Crank Sensor.

Kinda thought crank sensor myself noticed a small slit in the outer casing didn't think the inner wires were damaged though already in process of ordering another thank you ill let you know

 

[awg]

And there you go!

 

[knothead]

If you hadn't already ordered a crank sensor I keep them in stock at a much cheaper price than anyone else..

120.00 no tax and free shipping

If your want one let me know

 

[07bigdog]

It is possible that your charging system is on it's way out. Stator & rotor.

 

[Jersey Big Mike]

I just had the ehc and wire harness replaced with the rip the bike is carburetor 117 also replaced starter starter relay and magnetto The bike stalls every block won't restart until it cools can't check spark or fuel cause it does it while it's running any help much appreciated

Electronic techs use a "Freeze Spray" that you could carry on the bike and when it stalls spray an area Crank Sensor and see if it starts.
Very usefull stuff diagnosing heat related issues. Used a ton of it back in the 80 when I was in that end of the industry.

 

[Eric Williams]

It's probably going to be your crank sensor, my 2007 bulldog did the same thing. Installed once the bike got warmed up and then it would not crank for about 10-15 minutes till cool down a little bit. The way to check is pulled you crank sensor out. It's a little Allen wrench. It sits on the front of your motor down to the left. I'll send a picture if needed. Spray some cooling spray on it. Stick it back in. You'll see the bike will crank right back up. It's very easy to replace. I believe I paid $69 for it

Sent from my Pixel 7 using Tapatalk

 

[Stingray1]

It's probably going to be your crank sensor, my 2007 bulldog did the same thing. Installed once the bike got warmed up and then it would not crank for about 10-15 minutes till cool down a little bit. The way to check is pulled you crank sensor out. It's a little Allen wrench. It sits on the front of your motor down to the left. I'll send a picture if needed. Spray some cooling spray on it. Stick it back in. You'll see the bike will crank right back up. It's very easy to replace. I believe I paid $69 for it

Sent from my Pixel 7 using Tapatalk

Started relay


Sent from my iPad using Tapatalk