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By Chase Cook
I have a Yamaha 350 in at once to try to fire up but won't. It's getting gas fire air and it has a lot of compression but still struggles to start check the timing it's top dead center valves are good valves are adjusted everything's working but won't fire I put my hand over the carb suck in gas and it tries to but it makes a lot of black smoke. Also when I put my hand over do you carb and tried to start it there's black black nasty stuff in the gas. So I don't know if it's trying to burn too much or what it is the gas tank clean and it anything to do with the gas it's with it firing. Took the spark plug out and it's pure black. What is dried up black not nasty corroded wet looking. Need help to solve the issue
By Colby Calk
I recently got a 98 warrior 350 that 'needed the carb adjusted' but the reality is it has no spark. I have a new spark plug, plug wire, ignition coil, battery, and cdi box. I checked continuity and took apart and inspected the starter/kill/light switch on the handle bar, and it all looks brand new and checked out. The key switch seems to be working properly, as when off, nothing works, but when switched on, lights and electric starter button work. It turns over fine, and as I just stated, all the lights work. I took all the plastics off and traced all the wires, and only one had a small cut in it, but it was only through the rubber sheathing, not the wire itself (the blue one coming from the stator). I cleaned some grounds, made sure both relays work, and still nothing. I pulled the stator cover and looked at the stator itself, and it looks great. No broken wires or connectors or anything. Still, no spark. I'm at a loss. Where do I go next? Any help is appreciated.
By Dra O
posted a while back - it was running at one point - I have all the plastic shroud off - it's down to frame and engine now
-fuel pump: when line from petcock is attached, no fuel comes out other side to carb; the line to the carb is open (can blow through it); I thought when I cranked engine that the pump would spit out fuel on other side but it does not; I removed fuel pump and opened it up - diaphragm looks good - but internal areas had lotsa calcification build up - I cleaned this out and dried it good - the clear plastic pieces (?diaphragms) aren't broken - the spring w/ steel ball on end moves freely; am putting it back on tomorrow; but can anyone answer about the pump? isn't it supposed to pump fuel through it... to other side... to carb? puzzling
-along with fuel pump: I replaced petcock 3 weeks ago (gas tank had rusty fuel in bottom - cleaned it out prior to new petcock); when I turn petcock arrow NOT to on or reserve, fuel comes out of line; when I turn it to on or reserve, fuel doesn't come out; puzzling
-I don't know what's on back of fuel pump - it's a valve that has a hose coming out of it - looks like it goes to engine/carb - I haven't traced this out yet - what is it?
-can squirt gas on air filter and engine will run for 2-3 seconds then stop - fuel in top of carb (under diaphragm) does same
-it likely needs carb rebuild - will get to this - but something isn't allowing fuel to get from fuel pump to carb
-I THINK it has a mikuni model x carb - diaphragm is ID 26mm OD 68mm - hard to find inexpensive diaphragm, I guess because it's a model x
-last thing - I replaced solenoid due to old one clicking; I HAVE to be charging the battery or it won't start/turn over - battery just goes dead; but if charging, it'll turn over nicely; i'm guessing it's a bad battery
-any help appreciated - I've never owned an ATV before - inherited this beast from grandparent in-law
Want to show you one automotive show that I filmed in my town called Crazy Race. This was two day race in Qualifications round, Semifinals and Final. In this 4 parts I am showing best moments from all rounds and entertainment of the show.
Crazy Race Part 2 contains a qualifying round where all riders race against each other, selected by lot and split by two. They are free to drive in any direction and to hit their opponent's car everywhere except at the driver's door. Anyone who intentionally hit the other car in the driver's door is disqualified. Winner of each race continue in the semifinal round. In this part I will present the best moments of the qualifying round!
Part 3 shows you the best moments from Day 2 - Semifinals and Final. Battles in the semifinals are among the winners of the first day races, but this time they are selected by lot and divided into 4 battles of 4-5 cars each. The rules in each battle are that they only have to drive in one direction and try to neutralize other opponents until there are only two players left. Then the battle between the two last drivers has the rule to drive in any direction until only one who has qualified for the final round is left. Again, anyone who intentionally hit the other car in the driver's door is disqualified.
For the final round there were only two cars left, because the other two players who got the right to be there had problems with their car and could not participate.
Part 4 containing entertainments between battles and winners rewarding.
This event will have second round in 05-06 October 2019 and also will be filmed For this new round I will filmed in many new angels and places. Will prepare a lot more videos and many new entertainments . This 4 videos was my first try so many things to wish for better filming in the future one.
Hope you will like them and of course feel free to comment and to ask everything. Hope you will Subscribe to my channel and to be first to see my other content and of course new round of Crazy Race! Thanks!
Similar Tagged Content
Somehow I lost all of my spark on my 350Big Bear, its a 1990. It ran well for maybe 3 days! Thought it was the carb. Cleaned it 4 times. It was losing power at midrange. Got worse and worse. Finally nothing!
Are these good coils? I was thinking I could swap?
2002 Honda-200cc: primary 0.4(ohm-200) secondary 9.0(ohm20k)
1990 Yamaha-350cc: primary 0.8 secondary 11.0
Hello, well back to where I was last year with this carb. Took my 250 to the mountains for the first time this year and blue smoke, too much gas again. I can't believe that this carb gives me this much trouble. Seems like the choke is stuck but the cable moves freely. Anyone else ever experience this issue? Do you think a new choke cable would maybe resolve this?http://www.quadcrazy.com/atvforum/images/smilies/arghh.gif
OK it was the choke. Put on all new cable and plunger and she is running 100% again. So now the question is, is the carb getting worn out where the plunger needle goes in the small hole and when I use the choke the needle end doesn't get lined back up with the hole?? We'll see how it runs and now that I know what the issue is I can always pull the choke plunger out and reinstall if I start having this issue again.
Having a strange issue with the headlights on my Kodiak. Noticed there are no high beams, and when I switch back to low beam the lights stay off. The low beams will come on, only if I go from off to low. This is what I have going on:
From Off to Low - Lights Work
From Low to High - No lights
From High to Low - No Lights
Back to Off and to low - Lights work again.
Just curious if anyone has had a similar issue, or where I should start troubleshooting.
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