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 Post subject: Mt 250 won't start
PostPosted: Wed Apr 20, 2016 12:09 pm 
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Joined: Tue Apr 19, 2016 12:32 pm
Posts: 19
Heel new member and new owner of childhood dream 75 mt 250 ran when I test drove it ran when I got it home. Changed the gas and changed the plug and now won't start, have compression have spark plug gets wet but not soaked. I'm at a loss any help anyone


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 Post subject: Re: Mt 250 won't start
PostPosted: Thu Apr 21, 2016 5:16 am 
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Joined: Mon Jun 01, 2015 6:29 am
Posts: 34
Location: Burlington NC
Clean your plug real well or replace would be even better and get someone to help you push start the bike, sounds like your crank case is full of fuel and flooded. Once it burns off that extra fuel it should start and run fine. Did your float stick by any chance?

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 Post subject: Re: Mt 250 won't start
PostPosted: Thu Apr 21, 2016 6:39 am 
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Joined: Tue Apr 19, 2016 12:32 pm
Posts: 19
Thanks for the reply I've been kicking it like crazy should I drain it and start all over and is it possible my spark is weak.


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 Post subject: Re: Mt 250 won't start
PostPosted: Thu Apr 21, 2016 6:04 pm 
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Joined: Mon Jun 01, 2015 6:29 am
Posts: 34
Location: Burlington NC
Just install a new plug and get someone to help push, get it going then shift into 2nd gear and it should start to turn over ,no need to drain fuel. It make take a couple of times to get it going but I believe it should start.

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73 Honda CR250m
74 Honda CR250m
75 Honda CR250m1
76 Honda CR250m1
80 Honda CR250R
79 Yamaha YZ250F
79 Yamaha YZ400F
74 Yamaha GTMX80
75 Honda MT250 x3
66 Honda CA77 305 Dream x2
67 Honda CB77 305 Super Hawk
2009 Yamaha YZ250 2-smoker
2008 Honda CRF150RB


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 Post subject: Re: Mt 250 won't start
PostPosted: Sat Apr 23, 2016 9:48 pm 
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Joined: Sat Jan 31, 2015 2:38 pm
Posts: 11
Location: NW Indiana
If its wet,its flooding out. Spark should be bright blue when kicking over,try it at night so you can tell how strong or weak it is.Try heat/warm sparkplug lightly.
Let us know how it goes.

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 Post subject: Re: Mt 250 won't start
PostPosted: Sun Apr 24, 2016 2:16 pm 
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Joined: Tue Apr 19, 2016 12:32 pm
Posts: 19
Wow you guys hit it dead on, drained fuel from exhaust took carb off pull the plug left piston top dead center for a couple days. Heated plug up on was stove put in new 93 octane gas five kicks later up and running. Thanks for the help I'll have more guestion I'm sure so watch for me.


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