New cams, new tuner, frustrating problem
New cams, new tuner, frustrating problem
I have a recurring problem...after installing new cams (203's), and a SE super tuner on my '05 EGC fuel injected TC88...the bike runs great except for an intermittent loss of power. Cruising at 70+ MPH, the bike will begin to ping badly (like my '76 Buick used to do!) and lose power. I downshift, and it picks back up. The cams and the tuner were installed by my indie wrencher. And, as usual, it never does this when he test rides it. Is this a fuel filter issue? Is it a bad injector? It's frustrating to no end!
Road Warrior
Joined: Mar 2009
Posts: 1,317
Likes: 14
From: Idaho
I have a recurring problem...after installing new cams (203's), and a SE super tuner on my '05 EGC fuel injected TC88...the bike runs great except for an intermittent loss of power. Cruising at 70+ MPH, the bike will begin to ping badly (like my '76 Buick used to do!) and lose power. I downshift, and it picks back up. The cams and the tuner were installed by my indie wrencher. And, as usual, it never does this when he test rides it. Is this a fuel filter issue? Is it a bad injector? It's frustrating to no end!
Grand HDF Member
Joined: Nov 2004
Posts: 3,917
Likes: 184
From:
K-Hook, I know you don't want to but sounds to me like you need to have it put on a dyno and see where everything is at as far as timing, afr etc. This will also show if your injectors are maxed out or a possible fuel problem.
I think it would be money well spent imo.
I think it would be money well spent imo.
K-Hook, I know you don't want to but sounds to me like you need to have it put on a dyno and see where everything is at as far as timing, afr etc. This will also show if your injectors are maxed out or a possible fuel problem.
I think it would be money well spent imo.
I think it would be money well spent imo.
Extreme HDF Member
Joined: Jun 2011
Posts: 10,216
Likes: 224
From: Glendale AZ
K-Hook, I know you don't want to but sounds to me like you need to have it put on a dyno and see where everything is at as far as timing, afr etc. This will also show if your injectors are maxed out or a possible fuel problem.
I think it would be money well spent imo.
I think it would be money well spent imo.
Road Master
Joined: Feb 2012
Posts: 1,124
Likes: 4
From: pittsburgh, pa
I have a recurring problem...after installing new cams (203's), and a SE super tuner on my '05 EGC fuel injected TC88...the bike runs great except for an intermittent loss of power. Cruising at 70+ MPH, the bike will begin to ping badly (like my '76 Buick used to do!) and lose power. I downshift, and it picks back up. The cams and the tuner were installed by my indie wrencher. And, as usual, it never does this when he test rides it. Is this a fuel filter issue? Is it a bad injector? It's frustrating to no end!
My bike had issues from the original owner and the dealer which did the mods when the bike was new. I spent nearly two years of time, lots of aggravation and $$ before a second dealer's mechanic figured out that one of the cams had been installed out of time. The SE tuner is great, but without having the proper setup it's easy to have incorrect settings leading to your too lean condition.
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Road Master
Joined: Feb 2012
Posts: 1,124
Likes: 4
From: pittsburgh, pa
BTW-if a dyno is not readily available, go to a reputable HD shop. With the SE tuner, they will have the correct info to program it to fit your mods and get it running right.
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Thanks for all the advice fellas. The loss of power and pinging was happening even before I had the cams and the tuner installed...albeit much, MUCH worse. It's still happening infrequently, but not as bad...but still frustrating..
How much $$ for a dyno test? With two in college, discretionary funds are at a premium!
Appreciate all the info.
How much $$ for a dyno test? With two in college, discretionary funds are at a premium!
Appreciate all the info.
Intermediate
Joined: Mar 2012
Posts: 38
Likes: 0
From: North Dakota
Well first off what octane fuel are you running and if dyno time is required not every shop charges the same but most charge by the their hourly shop rate with a max time of 4 hrs charged. So if they spend 5 hrs you only pay 4 hrs and if they get in done in one hour you only pay one hour of labor. But make sure you are running GOOOOOOD 91 octane or better fuel