Bike slow to start

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Nov 14, 2015 | 02:42 PM

deuce_streetbob

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Road Master

Joined: Feb 2013

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From: columbus, ohio

Bike slow to start

Looking for some guidance from the group. First off, 103, woods 222 cams, basanni road rage B1 pipe, high flow AC, power vision. For the most part, the bike once warmed up runs just fine, but where my issue is would be during startup. the bike will start, but i have to feather the gas to keep it running or it will cough and try to stall out. it does this until it gets to about 150 degrees temperature. does anyone know why it would do this? i have autotuned with the PV, but not professionally tuned. any ideas?

Nov 14, 2015 | 11:37 PM

Next In Line

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Joined: May 2013

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From: Home

Sounds like the mapping is not correct for the idle/warm-up.

Google "Power Commander V Stalling at Idle".

Nov 18, 2015 | 07:39 AM

grbrown

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Joined: Jun 2007

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From: Bedford UK

Autotune is no substitute for a proper dyno tune IMHO. That will also get you in front of someone skilled in diagnosing running problems. So if your bike simply suffers from poor fuelling, or whatever, he will either be able to sort it out, or advise you on the problem. You may be surprised just how well your bike rides after it is done!

Nov 18, 2015 | 10:11 AM

98hotrodfatboy

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Joined: Mar 2010

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From: Poolville

The PCV is a good for ballpark tune but like Mr. Brown says no comparison.

If you do decide to get it tuned by a reputable tuner on a dyno, I'd love to see the results. I my self am thinking of getting a second bike with a103"er and going with the 222. I believe that cam in a stock 103 with pipes, a/c and a good tune should be capable of 115 tq and 107 hp. Might be wishful thinking but i think the numbers will add up. Thanx...

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Nov 18, 2015 | 01:26 PM

Tat2u

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Joined: Aug 2007

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From: South Australia

+3 to getting it on the dyno
It would be a good build if you could get 107hp with stock heads

Nov 18, 2015 | 02:03 PM

fuelmoto

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From: Little Chute, WI

Quote:

Originally Posted by deuce_streetbob

It sounds like the low RPM/low pressure (high vacuum) area of your tune needs some attention, if the Minimum MAP settings were not changed from their defaults when Auto Tuning you will likely find some of the cells in the VE table were over-corrected causing a slight lean spot. This should not be difficult to get fixed up. If you need any assistance you are welcome to contact us.

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Nov 19, 2015 | 12:36 PM