Tuner
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Joined: Jul 2009
Posts: 55
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From: Feasterville PA.
Tuner
Installed new pipes was told did not need a tuner. Took the bike in for a starting problem was told they installed a couple of update should help. Dealer mention the bike was running hot at both cylinders especially the front and suggested a tuner.
Just curious if some bikes do not need a tuner. I wanted tokeep the bike stock except for removing the stock exhaust to remove the cat. I guess if I need to have a tuner installeded I should start the mods.
Just curious if some bikes do not need a tuner. I wanted tokeep the bike stock except for removing the stock exhaust to remove the cat. I guess if I need to have a tuner installeded I should start the mods.
Tourer
Joined: Apr 2012
Posts: 269
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From: Springfield, MO
I am sure someone with more knowledge than me will chime in but I have heard/read that some pipes and/or slip ons, because they result in more air being pulled through, will lean your bike out more than stock (even without replacing cleaner) causing it to run hotter. Not sure about how that might affect starting and again, I am only repeating what I have heard, this info may be wrong but is worth checking out perhaps.
Tourer
Joined: Apr 2012
Posts: 345
Likes: 3
From: Manhattan
CFR's slip ons (and probably others but all I know about is CFR's) do cause the bike to run hotter/leaner for the reasons Trial Dog mentioned and need to be tuned in order to not discolor their pipes due to high(er) heat.
I am specifically talking about the change on HD 103s.
J
Last edited by Esuomm1; Aug 24, 2012 at 08:01 AM.
Outstanding HDF Member
Joined: Jul 2011
Posts: 2,052
Likes: 6
From: North London, UK
You don't need a tuner, but you'd be well advised to go with the complete Stage 1 - the pipes you have already, a higher-flowing air cleaner (HD's Screaming Eagle one will do fine) and a tuner.
The tuner can (and should be) used to richen the fuel/air ratio which will bring down the heat generated by the engine a bit. Your engine will thank you.
The tuner can (and should be) used to richen the fuel/air ratio which will bring down the heat generated by the engine a bit. Your engine will thank you.
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