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TOPIC: Re:slight hesitation or stumble Forum Tools Post New Topic Show latest posts Rules

#421244 madmanstar (User) Fresh Boarder Posts: 57 slight hesitation or stumble 8 Months, 1 Week ago   hi guys i'm getting a slight stumble or hesitation on a little of throttle on take off or on cruise speed but only on inital throttle on cruise when you let off and then let back on it i checked for a air leaks intake and exhaust but to no avail i'm just wondering if it's because the temps are changing outside. accel pump is set to a little squirt.   Logged     The administrator has disabled public write access. #421249 JEastonjr (User) Drive for the greater good. Expert Boarder Posts: 558 Re:slight hesitation or stumble 8 Months, 1 Week ago   try a little choke and see if it changes.   Logged       The administrator has disabled public write access. #421260 TampaSVT (User) Life is hard. It's harder if yer' stupid(J.Wayne) Platinum Boarder Posts: 4599 Re:slight hesitation or stumble 8 Months, 1 Week ago   JEastonjr wrote: try a little choke and see if it changes. madman: He means the bike. Not your ****... Feels good but probably wouldn't help the bike at all... Rich   Logged     Last Edit: 2011/09/19 19:27 By TampaSVT.   2008 Road Star Tricky Air Ride(remote controlled) 6-degree Raked Front-end Ape Hangers w/Internal Throttle & Wiring RoadHouse Dooleys Bunch of chrome Online Album http://www.TampaSVT.com   The administrator has disabled public write access. #421267 Curt (Moderator) Never to old to ride! Moderator Posts: 12504 Re:slight hesitation or stumble 8 Months, 1 Week ago   Do you have baffles in your pipes?   Logged     My Site Black Ice is Shiny, Black Ice is Deadly, Ya Wanna Ride My BlackIce?   The administrator has disabled public write access. #421324 davej (User) Platinum Boarder Posts: 4198 Re:slight hesitation or stumble 8 Months, 1 Week ago   Curt wrote: Do you have baffles in your pipes? With the dyno TQ #'s he has in his profile I doubt it.   Logged     dave   The administrator has disabled public write access. #421326 madmanstar (User) Fresh Boarder Posts: 57 Re:slight hesitation or stumble 8 Months, 1 Week ago   TampaSVT wrote: JEastonjr wrote: try a little choke and see if it changes. madman: He means the bike. Not your ****... Feels good but probably wouldn't help the bike at all... Rich curt yes i do have baffles in they are unremovable i just recently down the needle down to the 3 clip with 2 washers under neath and it does it now but before when i had it on 4th clip ran fine but was using alot more gas and the pipes seemed to be muffled down somewhat but now on 3rd clip alot more pickup and go and pipes sound louder hence the problem with the stumble.   Logged     Last Edit: 2011/09/19 23:09 By madmanstar.   The administrator has disabled public write access. #421357 madmanstar (User) Fresh Boarder Posts: 57 Re:slight hesitation or stumble 8 Months, 1 Week ago   davej wrote: Curt wrote: Do you have baffles in your pipes? With the dyno TQ #'s he has in his profile I doubt it. thats the #'s they gave me when i bought it i don't know what has been done to the motor in anyway ,as for they didn't either i'm still baffled at my rpm as i've had it tested over and over @ 950 but it's got the harley trot of about 400 rpm and checked for the timing and it's centered not advanced nor retard i've had my bike shop say that they must of got a custom cam in it cause i know in car motors you can have high rpm with the low thump sound for it has a bigger duration of lift and valve movement so i'm still working on that.   Logged     The administrator has disabled public write access. #421383 davej (User) Platinum Boarder Posts: 4198 Re:slight hesitation or stumble 8 Months, 1 Week ago   madmanstar wrote: davej wrote: Curt wrote: Do you have baffles in your pipes? With the dyno TQ #'s he has in his profile I doubt it. thats the #'s they gave me when i bought it i don't know what has been done to the motor in anyway ,as for they didn't either i'm still baffled at my rpm as i've had it tested over and over @ 950 but it's got the harley trot of about 400 rpm and checked for the timing and it's centered not advanced nor retard i've had my bike shop say that they must of got a custom cam in it cause i know in car motors you can have high rpm with the low thump sound for it has a bigger duration of lift and valve movement so i'm still working on that. Hate to say it but the #'s don't sound right. You have almost 50% gain in HP gain from stock but a loss of TQ . As far as the stumble probably due to the change in outside temps try turning your pms out 1/4 turn and turn your idle up to at least 750-850rpm.   Logged     dave   The administrator has disabled public write access. #421446 madmanstar (User) Fresh Boarder Posts: 57 Re:slight hesitation or stumble 8 Months, 1 Week ago   davej wrote: madmanstar wrote: davej wrote: Curt wrote: Do you have baffles in your pipes? With the dyno TQ #'s he has in his profile I doubt it. thats the #'s they gave me when i bought it i don't know what has been done to the motor in anyway ,as for they didn't either i'm still baffled at my rpm as i've had it tested over and over @ 950 but it's got the harley trot of about 400 rpm and checked for the timing and it's centered not advanced nor retard i've had my bike shop say that they must of got a custom cam in it cause i know in car motors you can have high rpm with the low thump sound for it has a bigger duration of lift and valve movement so i'm still working on that. Hate to say it but the #'s don't sound right. You have almost 50% gain in HP gain from stock but a loss of TQ . As far as the stumble probably due to the change in outside temps try turning your pms out 1/4 turn and turn your idle up to at least 750-850rpm. i think i'm gonna call the place where i got the bike and get the guy who owned it last and try and find out what was done to it since the shop who sold it dosen't know anything. thanks dave   Logged     The administrator has disabled public write access. #421527 Erbman02 (User) Platinum Boarder Posts: 3800 Re:slight hesitation or stumble 8 Months, 1 Week ago   davej wrote: madmanstar wrote: davej wrote: Curt wrote: Do you have baffles in your pipes? With the dyno TQ #'s he has in his profile I doubt it. thats the #'s they gave me when i bought it i don't know what has been done to the motor in anyway ,as for they didn't either i'm still baffled at my rpm as i've had it tested over and over @ 950 but it's got the harley trot of about 400 rpm and checked for the timing and it's centered not advanced nor retard i've had my bike shop say that they must of got a custom cam in it cause i know in car motors you can have high rpm with the low thump sound for it has a bigger duration of lift and valve movement so i'm still working on that. Hate to say it but the #'s don't sound right. You have almost 50% gain in HP gain from stock but a loss of TQ . As far as the stumble probably due to the change in outside temps try turning your pms out 1/4 turn and turn your idle up to at least 750-850rpm. I have to agree with you on that. No way a 1600 will get a 50% HP increase without engine work, and not with a stock carb on top of that. And that loss of Tq is a lot to lose. The HP numbers are close to that of a stage 3 set-up, but the Tq is well less than stock of 88Tq.   Logged       The administrator has disabled public write access.

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