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Author Topic: 85 250r weak spark  (Read 2427 times)

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85 250r weak spark
« on: October 01, 2017, 08:10:40 pm »
need some help 85 250 r weak spark it will give one blue and the rest red per kick. fires once then fouls out.. could it be flyweel and stator? pulles flywheel and it was super corroded. cleaned it as good as i could no change. any thoughts?
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Re: 85 250r weak spark
« Reply #1 on: October 01, 2017, 09:21:21 pm »
Are you running the correct spark plug with correct gap?
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Brian
1988 Suzuki LT-250R (The HPR test mule)
1987 Suzuki LT-500R
1990 Suzuki LT-500R
1982 Honda ATC-185S
1982 Honda ATC-250R

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Re: 85 250r weak spark
« Reply #2 on: October 03, 2017, 07:12:30 am »
Did you have the engine out recently?I only ask because I had a ground problem with the paint/powdercoat on my old Zilla and the engine wouldn't ground properly giving me weak spark.
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Can,t fix stupid.:)

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Re: 85 250r weak spark
« Reply #3 on: October 03, 2017, 09:34:47 am »
Check pick up coil gap ... plug gap... ohm test everything possible ...
Good luck with sorting it out and please keep us posted on what you learn as I am having similar issues
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87 Zilla dune build
87 Zilla banana build
89 Lt250 Bartlett trail port
95 Lt80 kids build
97 yfs200 blaster kids build

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Re: 85 250r weak spark
« Reply #4 on: October 04, 2017, 12:49:43 pm »
Check your pickup my lt lost spark an i couldnt figure it out for awhile then looked at pickup an it had some rust i sanded it off an the spark came right back
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92 Suzuki Lt250r
98 Yamaha Warrior
85 Honda Xl250r

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Re: 85 250r weak spark
« Reply #5 on: October 08, 2017, 12:02:00 pm »
thanks sorry havent had time this weak to get on here. this thing was running when it came in. set outside in the rain for a bit. it is a totalg rat bike. some kid tore it down and painted the frame. the coil and ign. ground was dangling from a frozen screw that was halfway in. fixed that first. has the wrong fastner in almost every hole some metric some standard. the coil looks new but the flyweel and stattor look realy crappy. going to mess with it today. need specs for this thing,like pickup gap and ohms. also this thing is for sale ........
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Re: 85 250r weak spark
« Reply #6 on: October 26, 2017, 06:05:28 pm »
 ok guys checked every thing and specs were good. wound up being very crappy wire splices coming out of the case. soldered them all and it runs.. thanks for the specs guys....
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Re: 85 250r weak spark
« Reply #7 on: October 27, 2017, 06:59:40 am »
A simple search would have found the Ohm range.  I know i've given them out at least 20 times.
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