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Everything Dirt Bike
Make / Model Specific
Yamaha
07 TTR 125L won't run/idle without choke
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<blockquote data-quote="Heath" data-source="post: 216975" data-attributes="member: 4711"><p>Tinkered around with it some more today. Pulled fuel tank off and cleaned the petcock. Blew all the gunk off the screens (not incredibly dirty). Drained the fuel tank and blew compressed air throughout. Fuel is running through the lines just fine. Took carb off and checked everything. Blew air through pilot with jet in and out. Air seemed to be moving through ok. My service manual only has the measurements for checking the fuel level instead of measuring float height. I attempted to measure the fuel level with the tools i had. Fuel level was about flush with the height of the bowl. I adjusted the float to be a little richer anyway. Put pilot air screw in tight too just to try and make it richer there as well. Put everything back together. Kicked it with no choke and after a few kicks it maintained a very slow/weak idle for maybe 10 seconds and died. Adjusted idle screw to increase idle speed and tried again. Wouldn't start unless choke was pulled. Messed around with trying to get it to idle without choke by adjusting idle and pilot screw, still no luck. Sprayed some seafoam around rubber boots on both sides of carb and airbox. No leaking or sucking there. After all that pulled the plug and it was dry, some white discoloration on the tip.</p><p></p><p>Last idea I have is adjusting float height to be about as rich as it can possibly get. Just to rule out the float as being the issue. Like someone brought up the new carb i bought for it was a cheapo from Amazon (Wilk was the name of carb). Maybe it's just garbage and it doesn't matter what size pilot jet I put in it's just never gonna allow enough fuel into the mix to idle without the choke. It's for the wife to ride and we haven't even gone riding yet. So idk if she'll even enjoy riding and the bike will get rode often or if she won't like it and it'll just end up sitting in the garage most of the time. So I'd rather not put a whole lot of money into it. Would it be okay to ride if i just lock the choke to full out or do i risk doing serious damage to the bike? I wouldn't think so but I'm new to all this. If someone thinks a quality replacement carb will get it runnin right I'll give it a shot. Does it have to be the same exact carb or do they have different aftermarket carbs i could try out? From what i saw online there's all kinds of carbs but in essence they're just replica styles of the stock carb.</p><p></p><p>Thanks again for all the input.</p><p></p><p>Sent from my SM-G935P using Tapatalk</p></blockquote><p></p>
[QUOTE="Heath, post: 216975, member: 4711"] Tinkered around with it some more today. Pulled fuel tank off and cleaned the petcock. Blew all the gunk off the screens (not incredibly dirty). Drained the fuel tank and blew compressed air throughout. Fuel is running through the lines just fine. Took carb off and checked everything. Blew air through pilot with jet in and out. Air seemed to be moving through ok. My service manual only has the measurements for checking the fuel level instead of measuring float height. I attempted to measure the fuel level with the tools i had. Fuel level was about flush with the height of the bowl. I adjusted the float to be a little richer anyway. Put pilot air screw in tight too just to try and make it richer there as well. Put everything back together. Kicked it with no choke and after a few kicks it maintained a very slow/weak idle for maybe 10 seconds and died. Adjusted idle screw to increase idle speed and tried again. Wouldn't start unless choke was pulled. Messed around with trying to get it to idle without choke by adjusting idle and pilot screw, still no luck. Sprayed some seafoam around rubber boots on both sides of carb and airbox. No leaking or sucking there. After all that pulled the plug and it was dry, some white discoloration on the tip. Last idea I have is adjusting float height to be about as rich as it can possibly get. Just to rule out the float as being the issue. Like someone brought up the new carb i bought for it was a cheapo from Amazon (Wilk was the name of carb). Maybe it's just garbage and it doesn't matter what size pilot jet I put in it's just never gonna allow enough fuel into the mix to idle without the choke. It's for the wife to ride and we haven't even gone riding yet. So idk if she'll even enjoy riding and the bike will get rode often or if she won't like it and it'll just end up sitting in the garage most of the time. So I'd rather not put a whole lot of money into it. Would it be okay to ride if i just lock the choke to full out or do i risk doing serious damage to the bike? I wouldn't think so but I'm new to all this. If someone thinks a quality replacement carb will get it runnin right I'll give it a shot. Does it have to be the same exact carb or do they have different aftermarket carbs i could try out? From what i saw online there's all kinds of carbs but in essence they're just replica styles of the stock carb. Thanks again for all the input. Sent from my SM-G935P using Tapatalk [/QUOTE]
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07 TTR 125L won't run/idle without choke
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