Hard to start.

Orange-U-Nice

New member

Equipment
Kubota B7100 HST 4WD, Kubota ZG327, JD X728, JD 4600, Honda Foreman 400
Jan 6, 2013
15
0
0
Stanardsville, Virginia
I am trying to figure out why my used "New-to-me" B7100 HST is hard to start when the engine is cold, even at 65-70 degrees air temp.

I will turn on the preheat switch for up to 1 1/2 minutes with no success.

The glow plug indicator on the dash does not glow at all even after two minutes of "Preheat". Does this indicator have to operate in order for the glow plugs to get full current ?

I replaced the glow plugs with new ones and cleaned the electrical connections to them.

Once the engine starts and has run for some time it will re-start easily.

What's my next move ?

BTW, I do not have a decompression button on the dash, not missing but was manufactured without one. If there is one, I don't see it on the engine any where because I don't know what it would look like.

Thanks.
Bill
 

kc8fbl

New member

Equipment
2014 L3200 HST FEL, 1949 Minneapolis-Moline R
Aug 23, 2012
222
0
0
Gobles, MI
You might have to tear into the dash and check the glow plug indicator. If that wire is broken in the indicator, your glow plugs will not work. I'm guessing you have an electrical issue with your glow plugs. The little coiled wire in the indicator should glow bright.

I've also heard that those tractors are hard to start without glow plugs, even if the weather is warmer.
 

Orange-U-Nice

New member

Equipment
Kubota B7100 HST 4WD, Kubota ZG327, JD X728, JD 4600, Honda Foreman 400
Jan 6, 2013
15
0
0
Stanardsville, Virginia
You might have to tear into the dash and check the glow plug indicator. If that wire is broken in the indicator, your glow plugs will not work. I'm guessing you have an electrical issue with your glow plugs. The little coiled wire in the indicator should glow bright.

I've also heard that those tractors are hard to start without glow plugs, even if the weather is warmer.
Thanks, I'll be checking/replacing the glow indicator next.

Bill