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Fuel Fuel Delivery


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October 23rd, 2016, 04:09 PM   #151
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October 24th, 2016, 12:59 AM   #152
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The question is what differs from cold/warm. As it starts with starter fluid one can assume all it need is fuel/extra fuel. Maybe it runs lean so when warm it is enough it works but when cold it needs that extra fuel to get enough vapour to start?

Check the tps? If it is whacked out of position it might not give enough. But I assume minimum/closed throttle should be adjusted for start? Maybe the injector doesnt give enough for cold start but when warm it is enough. Which could indicate not enough pressure/flow. I dont know the involvement of the temp sensor in the airbox, maybe check that connection(corrosion what not).
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October 24th, 2016, 06:24 AM   #153
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thank you for the ideas. i definitely don't think it's the temp sensor.

i'll check the tps, but that's never given me an issue.

the only thing i've really fussed with lately is the fuel pump...but i really thought i did a good job gatting the CA cycleworks pump setup in there and tightened to handle full pressure.

guess i'll have to break it down and see again. my only thought is that maybe the fuel filter i put in is too restrictive at cold start and i should go back to the oem Mehle...or maybe the fuel line in there isn't functioning as well as the OEM stuff...looks like CA Cycleworks is actually selling there new kits with fuel like that looks a lot like OEM.

Last edited by whapworth; October 24th, 2016 at 01:03 PM.
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October 24th, 2016, 12:34 PM   #154
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fingers tightly crossed

I went into the garage today to start the bike, and pretty much killed the battery entirely, so I hooked it up to the trickle, it's been on it for about an hour and a half now, bike was dead cold and I went to start it and it fired right up. now there were maybe some remnants of starter fluid that I sprayed on it this morning, but I can't imagine the ether would've stuck around for two hours

again, fingers tightly crossed that this was in fact the problem, will report back if anyone is interested

thanks again for the community for all the help and responses
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October 25th, 2016, 10:16 AM   #155
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really hard to tell what's causing the issues, battery does seem week, will test with a multimeter when i have a check, but still feel like it's haveing trouble turning over. quick shot of starter fluid and it immediately kicks on even with the weak battery.

i ordered a mahle fuel filter to try and swap out. read up a bit on testing the tps which i'll do with the multimeter as well, but still seems like it's a fueling issue.

so annoying

thoughts still welcome
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October 25th, 2016, 10:47 AM   #156
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Never had your problem but reading here UHE. If you crashed (on dirt bike who hasn't) your TPS can go out of adjustment. If you someone with same bike you switch tanks or other parts easy to change.
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October 25th, 2016, 01:09 PM   #157
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So "Kind Chris" at CA Cycleworks got back to me in a SNAP and he's sending me their new and improved pump for the Husaberg...with the new fuel lines they're pairing with it and improved hose clamps: Ca Cycleworks Fuel Pump for KTM/Husaberg/Husqvarna [Choice of Hose Length] | ca-cycleworks.com

He said it's hard to diagnose any one issue in particular sometimes so best to swap out the pump and see if that solves it. Fingers crossed again, and can't say enough good things about the team at CA Cycleworks.

He ended by saying "we just to help people get back on their bikes".

great people, great community..will report back once i get the part and swap it out.
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October 31st, 2016, 07:28 AM   #158
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hey everyone, just wanted to say thank you for all of the advice, and wanted to close the loop on the issues I was having

I ordered a new battery from ballistic, because I needed one, and also because I thought the battery i had (also ballistic) was losing it's cranking power. I also was wishfully thinking that the starting issue I was having at that point was battery related. I put the new battery in, and it definitely cranked harder, and cranked enough to get the bike to turn over, but it required a lot of time, much more than usual.

so I removed the tank one more time, and replaced the older CA cycleworks pump and fuel lines that they supplied with their new kit. The fuel line they now provide is identical to the OEM, and the hose clamps are super burly as well and a perfect fit. Additionally the new fuel pump has a barbed tip. with all the new equipment, I was able to get things sealed up in a way that was much more confidence inspiring. I also drilled two small holes on either side of the plastic housing that holds the fuel pump, and used safety wire to secure it all together, fearing it could easily come undone with just the stock clips and then be floating around my tank

also, CA cycleworks now provides a locking washer for the bottom of the fuel pump that secures the coarse filter, this one actually secures tightly to the post on the fuel pump unlike the previous one i had and the oem one i destroyed while removing the first time. All of this is to say that the new cycle works kit is TOP NOTCH

I put the bike all back together, and cycled it on a couple times to prime the line. Immediately I noticed a much stronger sound from the fuel pump. The bike was cold, and I hit the starter for no more than 1.5 seconds and bike roared to a start

Quick fist pump, and I went for a 10 mile ride. Everything feels awesome.

just want to thank Chris and CA Cycleworks again, they were so responsive and stood by their product...awesome guy! also just want to leave this note for anybody dealing with similar issues on a Husaberg, or related bike with a similar fuel pump issue (I know the Ducati's use this one as well)

happy riding
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Last edited by whapworth; October 31st, 2016 at 12:11 PM.
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October 31st, 2016, 07:29 AM   #159
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oh, forgot to mention i also adjusted the tps for good measure while i was in there, it was very slightly off. got it to .602v on the dot

Tps setting closed throttle setting

awesome community!
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November 7th, 2016, 06:07 AM   #160
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In italy runs a lot of scooter. We change the original product with a commercial pump fitted on Yamaha TMAX. We pay this about 65Euro.
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