i've changed everything including my scivvys - Star Motorcycle Forums: Star Raider, V-Max, V-Star, Road-Star Forum
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post #1 of 20 (permalink) Old 11-24-2009, 02:24 PM Thread Starter
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i've changed everything including my scivvys

have a 07 650 v-star custom 17676 on the clock mostly hiway miles. This thing starts good hot or cold and runs great.......for about ten minutes then as you continue usually about 65 it dies pack to 1/4 power.....sometimes it will even die completely ....crank it back up no prob....1/4 power till the bike completely cools then same again.. I have changed the fuel/ filter/coils/cdi box/ fuelpump/had the tps checked/went thru carbs/checked timing three times (valve timing) bypassed the ais.......hellllpp!!!!!!! any ideas ANY IDEAS profuse thanks will b in order.
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post #2 of 20 (permalink) Old 11-24-2009, 02:31 PM
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Knowing that you have changed the fuel filter and fuel pump.....have you checked to see that the fuel tank itself is venting?
I'm at a loss here but it still sounds like a fuel delivery problem to me.
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post #3 of 20 (permalink) Old 11-24-2009, 04:17 PM
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May be off base here, but it really does sound like a fuel starvation problem, with all you have already done, sure don't sound like much fun right now. The venting would be a good place to ckeck.
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post #4 of 20 (permalink) Old 11-24-2009, 06:41 PM Thread Starter
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thanks

have visited that situation but as i am desparate i will open the gas cap and ride in the morrow hey! thanks for the ideas
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post #5 of 20 (permalink) Old 11-24-2009, 11:09 PM
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another thing you might look at if not fuel starvation is a partially/fully plugged exhaust. this can also present the same type of problem.
good luck.
Doug
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post #6 of 20 (permalink) Old 11-25-2009, 02:40 PM Thread Starter
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well dangnabit!

stuff a piece of airfilter foam in the tank neck and went for a ride .......same situation bike runs great everything just wonderful than bang yah know it almost feels like a rev limiter but it doesn't know when to quit.....any more ideas pretty please?
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post #7 of 20 (permalink) Old 11-25-2009, 05:03 PM
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It could very well be the rev limiters. They (one per carb) shut off fuel 1000 rpm before redling, about 5600. Try disconnecting the wires to them and go for a ride. You will get a check engine light but they will not work. I bought a kit form Maxair that eliminated the rev limiters.
Good luck
Doug
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post #8 of 20 (permalink) Old 11-26-2009, 10:26 PM Thread Starter
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finally ...........

i think you may have hit upon it ......thats exactly what it feels like. i will take the wires loose and let you know ........oh by the way .......is it going to beer/kisses/hugs/money or what????????? thanks will get back to yah
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post #9 of 20 (permalink) Old 11-26-2009, 11:39 PM
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I just did some checking on the Maxair site. It appears that the 650 does not have the fuel shut off solenoids. sorry about that. Do you still have the stock exhaust? I am thinking still it might be plugged exhaust. If so try taking off the mufflers and see what happens. They slide right off. It will be loud but the bike will not suffer any harm for the short time you will be runnig it. Try calling Maxair at 303-362-1336. Another possibility is the AIS could be faulty causing the same symptoms.
hope this helps
Doug

Last edited by DMTJOY; 11-26-2009 at 11:44 PM. Reason: added more information.
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post #10 of 20 (permalink) Old 11-27-2009, 11:20 AM
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Take the AIS out of the picture by disabling it. A marble in each rubber hose where they connect to the chrome steel lines will shut them off. A couple of golf tees in the vacuum lines from the carbs plus a larger marble in the larger hose on the AIS canister itself.
Stops the popping on deceleration and makes no difference in the way the bike runs. Mine is disabled on my 06 Classic.
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