toadstool
Active Member
I keep a word document on the computer that lists every part with its price that I spend on the Big Dog for reference. Over the last year and a half I sunk $6453 in this bike's motor... to go slower. I am at a point of frustration that will soon require blood pressure medication.
It is currently Ohio bike week so I took a 150 mile trip to Sandusky, Ohio - the first long trip since all the modifications. During the ride there I noticed some excessive valve train noise not noted in town. With the woods 650 cam I noticed some "whining" like a turbo, but this new noise was a metallic pinging/crunching noise that was worse during a low RPM throttle roll on and a ticking that increases with RPMs. I knew something wasn't right when the bike produced an embarrassing 100 hp after being modified.
I have changed the timing from 32* to 28* and have not noticed much of a change, maybe slightly worse, maybe in my head. I have contacted Bobby Woods who stated "That bike should fart 120 HP. Your numbers are past terrible." Mr. Woods, I agree. He also said the cam wil work with a wide range of compression so that aspect isn't critical.
Terry Reed is a racing engine specialist locally whom Mr. Woods recommended tear the motor apart and go over it with a fine tooth comb. I have been in contact with Mr. Reed who agrees to look at the bike.
My question: Is there something I can do, any recommendations prior to a hefty bill and huge loss of riding time. He already said he wants to tear the motor apart to check everything, flow the heads, ect. After $6500, I really really really don't want to drop another $1500 if I don't have to.
List:
W6HF 650 cam
W188 springs
Mikuni HSR48 carb
Thunder Heart ignition
Whimmer 90 degree with HPF-1 high flow filter
RB Racing 2:1 exhaust
Custom Nitrous Oxide with purge valve
Minor head job
It is currently Ohio bike week so I took a 150 mile trip to Sandusky, Ohio - the first long trip since all the modifications. During the ride there I noticed some excessive valve train noise not noted in town. With the woods 650 cam I noticed some "whining" like a turbo, but this new noise was a metallic pinging/crunching noise that was worse during a low RPM throttle roll on and a ticking that increases with RPMs. I knew something wasn't right when the bike produced an embarrassing 100 hp after being modified.
I have changed the timing from 32* to 28* and have not noticed much of a change, maybe slightly worse, maybe in my head. I have contacted Bobby Woods who stated "That bike should fart 120 HP. Your numbers are past terrible." Mr. Woods, I agree. He also said the cam wil work with a wide range of compression so that aspect isn't critical.
Terry Reed is a racing engine specialist locally whom Mr. Woods recommended tear the motor apart and go over it with a fine tooth comb. I have been in contact with Mr. Reed who agrees to look at the bike.
My question: Is there something I can do, any recommendations prior to a hefty bill and huge loss of riding time. He already said he wants to tear the motor apart to check everything, flow the heads, ect. After $6500, I really really really don't want to drop another $1500 if I don't have to.
List:
W6HF 650 cam
W188 springs
Mikuni HSR48 carb
Thunder Heart ignition
Whimmer 90 degree with HPF-1 high flow filter
RB Racing 2:1 exhaust
Custom Nitrous Oxide with purge valve
Minor head job
