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post #1 of 20 Old 02-16-2020, 02:30 PM Thread Starter
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Need help!!!

New member here! But have a serious issue that I cannot figure out. So about 2 years ago I bought a 700xx, rode fantastic for around 6 months, one day on the trail it would not start via the button, tried to roll start and it fired up, rode like that for another 6months, then lack of time/interest I was unable to ride, be setting for around a year, so I drained the fuel, changed spark plug, still unable to start by the button, but WILL ROLL START. And starts and runs perfectly when roll started. As soon as you shut it off it will not start back by the button. Have adjusted valves, checked stator, (reading .000 ohms?) good battery. Tried 3 different ones and jumper cables. I’m at a lost and hope someone has an idea. Thanks! Sorry for the long post... P.S it’s bone stock.
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post #2 of 20 Old 02-16-2020, 02:32 PM Thread Starter
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Also, there is absolutely no spark when trying to crank over
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post #3 of 20 Old 02-16-2020, 08:02 PM

 
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Originally Posted by Dylan700xx View Post
Also, there is absolutely no spark when trying to crank over

Does it crank but not start from the starter switch?

#1 2008 Honda Trx700xx HMF Performance Exhaust, PCV, Stroked 710cc, 10.5:1 Wiseco Piston, Frt Elka Stage 4's, Fox Podium X rear's, EHS Lid, L8ton 11/16" sway bar, DG 6 Pack Rack, PRM Desert II Bumper & Front Skids.
#2 2008 Trx700xx AMR Reaper, Ehs Big 3, P/P head, Xcalibur Cam, Hard Welded Rockers, +1 In/Ex Valves, +3 Throttle body, 11:1 CP Piston, Elka Stage 3 Legacy Shocks, L8ton 11/16th Sway Bar, PRM Front Skids, Desert II Bumper & Rear Utility Rack.


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post #4 of 20 Old 02-19-2020, 06:42 PM
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are wires hooked to the coil ?

751 ,barker pipe,290 Web cam,+3 stroker,TB bored to 46.8 and moved back from head 1 inch,+3 big bore , +1 intake valves, Hard Welded Rockers,KW springs, ported, clutch mod , air box removed ,Cat oil mod, dynojet commander V w/auto tune , lowered rear end , TRX450R front shocks ,
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post #5 of 20 Old 02-20-2020, 04:05 AM
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Originally Posted by Dylan700xx View Post
New member here! But have a serious issue that I cannot figure out. So about 2 years ago I bought a 700xx, rode fantastic for around 6 months, one day on the trail it would not start via the button, tried to roll start and it fired up, rode like that for another 6months, then lack of time/interest I was unable to ride, be setting for around a year, so I drained the fuel, changed spark plug, still unable to start by the button, but WILL ROLL START. And starts and runs perfectly when roll started. As soon as you shut it off it will not start back by the button. Have adjusted valves, checked stator, (reading .000 ohms?) good battery. Tried 3 different ones and jumper cables. Iím at a lost and hope someone has an idea. Thanks! Sorry for the long post... P.S itís bone stock.

could be decompressor ... stuck ... try give a little gas during starting
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post #6 of 20 Old 02-20-2020, 08:34 AM Thread Starter
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All coil wires are hooked up, I don’t believe it’s the decompression because there is no spark when plug is removed and put to the head (can literally hold the plug in my hand while cranking over) put an ohmmeter from coil wire to The pin on the ecm and nothing seems to be open. With key on I have power to both sides of the coil via test light. It will start but by only roll starting and runs fantastic. But will only crank over by the button and won’t fire. I ordered a stator and new coil. I had an old warrior at one time that had a very similar issue and ended up replacing the stator Even though it seemed to ohm out ok. and it fixed it. So hopefully it’ll work..
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post #7 of 20 Old 02-21-2020, 12:29 PM

 
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Are you sure the starter is engaging and turning over the engine?

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#1 2008 Honda Trx700xx HMF Performance Exhaust, PCV, Stroked 710cc, 10.5:1 Wiseco Piston, Frt Elka Stage 4's, Fox Podium X rear's, EHS Lid, L8ton 11/16" sway bar, DG 6 Pack Rack, PRM Desert II Bumper & Front Skids.
#2 2008 Trx700xx AMR Reaper, Ehs Big 3, P/P head, Xcalibur Cam, Hard Welded Rockers, +1 In/Ex Valves, +3 Throttle body, 11:1 CP Piston, Elka Stage 3 Legacy Shocks, L8ton 11/16th Sway Bar, PRM Front Skids, Desert II Bumper & Rear Utility Rack.


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post #8 of 20 Old 02-22-2020, 10:51 PM
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when you push the start button does the voltage drop at the coil ?

751 ,barker pipe,290 Web cam,+3 stroker,TB bored to 46.8 and moved back from head 1 inch,+3 big bore , +1 intake valves, Hard Welded Rockers,KW springs, ported, clutch mod , air box removed ,Cat oil mod, dynojet commander V w/auto tune , lowered rear end , TRX450R front shocks ,
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post #9 of 20 Old 02-23-2020, 11:38 AM Thread Starter
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Yes voltage drops at the black/red wire. From about 12.6 to around 8volts
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post #10 of 20 Old 02-23-2020, 01:14 PM
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ahhhh so why ?

751 ,barker pipe,290 Web cam,+3 stroker,TB bored to 46.8 and moved back from head 1 inch,+3 big bore , +1 intake valves, Hard Welded Rockers,KW springs, ported, clutch mod , air box removed ,Cat oil mod, dynojet commander V w/auto tune , lowered rear end , TRX450R front shocks ,

Last edited by cataway; 02-23-2020 at 01:20 PM.
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