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#277310 martyman (User) Fresh Boarder Posts: 14 Black smoke 7 Years, 10 Months ago   I have a 2003 roadstar with a Hypercharger pro.My question is. When I rev engine. i see a puff of black smoke come out. It run great and i heard that when you put a hypercharger pro on and aftermarket pipes . the engine is suppose to run a litle rich. Is this ture?   Logged     The administrator has disabled public write access. #277312 fastjohnny (User) Platinum Boarder Posts: 1780 Re:Black smoke 7 Years, 10 Months ago   It's my understanding that it will run rich especially iof you haven't rejetted for the changes (hyper charger & pipes). I'm sure the guru's will ask about the jetting among a bunch of other things.   Logged     The administrator has disabled public write access. #277317 old dog (User) Platinum Boarder Posts: 2722 Re:Black smoke 7 Years, 10 Months ago   Is the carb stock? Is it jetted? How long have you had the charger?Did this just start? Have you checked the plugs? bill   Logged     110 cu in., PR/JE 10.25:1 HC pistons, PR Cam, PR adjustable push rods, PR stage II ported heads (2mm oversize valves)   The administrator has disabled public write access. #277318 Curt (Moderator) Never to old to ride! Moderator Posts: 22378 Re:Black smoke 7 Years, 10 Months ago   You can't just hang a Hypercharger or any other open air filter on your bike and not rejet it. The pipes you can get away with most of the time. Didn't you get a jet kit with HC?   Logged       The administrator has disabled public write access. #277464 The Gardener (User) OCR Gold Boarder Posts: 654 Re:Black smoke 7 Years, 10 Months ago   black smoke is an overly rich fuel mix. the hypercharger install kit does include new carb jetting parts but not a PMS screw. you should pop off the cover cap over the stock PMS screw and start there. does it only puff black when your taking off? or while running? you probably have an overly rich low circuit, if you did everything else correctly.   Logged     you can find more about me & my R* on: http://www.facebook.com/davida.johansen   The administrator has disabled public write access. #277494 martyman (User) Fresh Boarder Posts: 14 Re:Black smoke 7 Years, 10 Months ago   if I start the bike and let it idol and rev it up i see a little puff of smoke. The bike came with the hypercharger when I bought it. it runs good   Logged     The administrator has disabled public write access. #277618 Erbman02 (User) Platinum Boarder Posts: 7000 Re:Black smoke 7 Years, 10 Months ago   martyman wrote: I have a 2003 roadstar with a Hypercharger pro.My question is. When I rev engine. i see a puff of black smoke come out. It run great and i heard that when you put a hypercharger pro on and aftermarket pipes . the engine is suppose to run a litle rich. Is this ture? "Rich" is a relative term. Bikes usually run richer than ideal air/fuel ratios which is 14.7:1. However, there is a point where being too rich serves no purpose, other than wastes gas, fouls spark plugs, adds excessive carbon and can also rob power. Each carb ckt requires a certain level of richness to provide that needed element for that particular ckt, whether it be to provide max Tq and or Hp, or to aid in cooling the cylinder heads and prevent detonation at WOT. These bikes are well capable to give you 40 to 50mpg on a good solid cruise (65mph) dependent on how the carb is tuned. There is a safe spread in air/fuel ratios in tuning, tune for performance, tune for economy, or somewhere in between.   Logged       The administrator has disabled public write access. #277788 lbranum98 (User) Fresh Boarder Posts: 4 Re:Black smoke 7 Years, 10 Months ago   Anyone know what would cause an slight oily residue on the back cylinder header pipe, behind the aircleaner (big air/kn filter)? Blowby or something else?   Logged     The administrator has disabled public write access.

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