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Grr, simple maintenace turned headache

Old 06-14-2010, 08:03 PM
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Grr, simple maintenace turned headache

So I thought since this was a newer bike to me, I'd change the spark plugs out and just check the carbs to make sure they looked clean.. I'm extremely glad I did, the plugs were the worst I've seen in awhile. I took the airbox off and did a visual inspection of some of the hoses and lines, found one cracked line but it was just the small breather/vent line from the gas tank down to the bottom of the bike. Everything was running fine before I started, just wanted to do a good check through the bike..

I replaced the with NGK Iridiums and put it all back together.. Now I have a really bad throttle/hesitation. The bike seems to idle fine, and also seems OK after the hesitation, but I haven't taken it above 5k yet. The plugs I used were DPR9EIX-9

Here's a vid.. the quality isn't great but hopefully someone has experienced similar. I haven't had a 'Hawk in awhile (5+ years), so troubleshooting is like starting over for me


Crappy Vid Link

Last edited by malken00; 06-14-2010 at 08:08 PM.
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Old 06-14-2010, 08:35 PM
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Check the location of the vacuum line on the fuel petcock under the tank. If it's on the bottom nipple, that's your problem. The vacuum line goes on the side nipple of the petcock. The bottom nipple is a vent for the diaphragm.
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Old 06-14-2010, 09:06 PM
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+1 to PVLIR
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Old 06-14-2010, 09:15 PM
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And.... you were right. SuperHawkForum to the rescue once again. Thanks VTRSurfer.. beer is on me next time you're in Newport Coast
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Old 06-14-2010, 09:36 PM
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LOL, so I had to laugh. I was giving up for the night, left the tank on the back of the bike thinking, "Maybe I should just put it back together for another day..." Came upstairs, VTRSurfer had given me the pointer, so I went back down to fix it and put the tank back on. If I hadn't gone back down to fix it, my tank would be on the ground right now with a giant dent in it, as the earthquake 10 minutes ago would've rattled it off. So thanks x2 VTRSurfer
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Old 06-15-2010, 07:44 PM
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you may want to stop removing the tank. instead just raise the front and attach a ratchet strap from the front to the tail section. saves a lot of bullshit. There's some pics of this timesaver somewhere. Welcome.
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