Video of trx300ex that wont start - Honda ATV Forum
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post #1 of 33 (permalink) Old 01-29-2012, 09:43 AM
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Video of trx300ex that wont start

Honda Trx300EX Wont Start - YouTube
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post #2 of 33 (permalink) Old 01-29-2012, 09:58 AM
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you don't have your battery leads to your starter and grounds right...somehow..they are not hooked right..check the pos lead from battery..it goes to the starter solenoid's terminal..then from the solenoid's other terminal..go to the starters post....then from your batteries neg post..go to the motor on a good strong bolt for the ground. this is what i think is your problem. re-check all your battery leads..if they are not hooked up right..it won't crank when you push the start button...also...if it's in gear..then yes..you need to pull the clutch lever..if it's in neutral ???..then you should not have to pull the clutch lever to crank it..at least i don't think so ???..i'm not to keen on sport bikes..mainly utility atvs.

'89 trx350D foreman 4x4...'85 vf700c magna, '83 cx650c , '03 trx450fm foreman 4x4 , 2015 Yamaha waverunner fx cruiser ho
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post #3 of 33 (permalink) Old 01-29-2012, 10:05 AM
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no in neutral you dont have to use the clutch

NEW WHEELER
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2002 honda 300ex
Worked on it a lot but will be missed SOLD BUT WILL BE MISSED
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post #4 of 33 (permalink) Old 01-29-2012, 10:10 AM
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Originally Posted by exgofast View Post
no in neutral you dont have to use the clutch
i didn't think so..but i wasn't for sure ??..lol..i'm not into sport atv's..i have only worked on a couple..i did not have to over haul them or nothing..just minor stuff..soooooo..anyway..he should be able then...to start it without pulling the clutch lever in..if its in neutral...soooooo..this means..when he jumps the solenoid with the screw driver..and it crank's ?.then something isn't right either with his battery leads ?..or a bad starter solenoid ?..one or the other ..or both !.

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post #5 of 33 (permalink) Old 01-29-2012, 10:13 AM
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shadetree your right you do not have to pull the clutch in to start in neutral on this quad,they wont even start in gear if you dont splice the safet wires together,my 400ex did the same thing and the solenoid was bad and my 300ex did it when got it too,here is a solenoid with all the wires because it looked like that one you have had been hacked up so this will take the guessing out of it but before you buy a solenoid clean the connections on the solenoid and see if it works
Honda TRX300EX Solenoid TRX 300EX | eBay



2004 400ex

yoshimura slip on
uni filter
426 kit
moose bars
dg bumper
msr clutch
itp c-series rims
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post #6 of 33 (permalink) Old 01-29-2012, 10:14 AM
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could it be the start /stop sw. on handlebar, since using a screwdriver bypasses that?

also when you crank it with the screwdriver on the solenoid do you get spark at the plug?

1987 TRX350D 4x4 25" Trilobites 1994 Yamaha Timberwolf 4x4 mudlites
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post #7 of 33 (permalink) Old 01-29-2012, 10:38 AM
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Ok the + battery terminal connects straight to the solenoid the other side of the solenoid connects directly to the starter. the small red wire has a 15 amp fuse inline and it leads directly to the ignition switch. The yellow/red wire on the solenoid leads to the start button on the bars and the yellow/green leads to the reverse inhibitor box the 2 wire connector, the other wire in that connector is the feed for the clutch switch. disconnect the clutch switch at the bars and jump those 2 wires this will eliminat the micro switch for the clutch. unplug the 2 wires on the key switch and connect them together this eliminates the key. your not getting current through the solenoid

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post #8 of 33 (permalink) Old 01-29-2012, 10:57 AM
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Quote:
Originally Posted by TRX2fiveO View Post
Ok the + battery terminal connects straight to the solenoid the other side of the solenoid connects directly to the starter. the small red wire has a 15 amp fuse inline and it leads directly to the ignition switch. The yellow/red wire on the solenoid leads to the start button on the bars and the yellow/green leads to the reverse inhibitor box the 2 wire connector, the other wire in that connector is the feed for the clutch switch. disconnect the clutch switch at the bars and jump those 2 wires this will eliminat the micro switch for the clutch. unplug the 2 wires on the key switch and connect them together this eliminates the key. your not getting current through the solenoid
nowwwwww..if he wanted to bypass the clutch saftey and the ignition switch..and the starting in reverse..then i can understand all of this..butttt..the problem i see and hear..is he's not getting power from his battery..through his starter solenoid..to the starter ???..this is what i'm seeing and hearing...correct me if i'm wrong ?..( like i'm never wrong ??? )..lmfao.

'89 trx350D foreman 4x4...'85 vf700c magna, '83 cx650c , '03 trx450fm foreman 4x4 , 2015 Yamaha waverunner fx cruiser ho
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post #9 of 33 (permalink) Old 01-29-2012, 11:13 AM
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yeah my starter spins when i try to jump the solenoid with a screwdriver
post #10 of 33 (permalink) Old 01-29-2012, 11:22 AM
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I can't tell for sure in the video, but it looks like the main hot wire isn't hooked up. It should be a small red wire that hooks to one of the solenoid posts and runs to the key switch. This is what powers everything. If this wire isn't hooked up, the electric start won't work and it also won't fire/spark. It hooks to the same post on the solenoid that the positive battery cable hooks to. I think it's the red wire that's hanging down that's not hooked up.

Most 4-wheeler problems are caused by a loose nut connecting the handlebars and the seat!!

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