Carb problems? Something else? I'm lost...broke down, and need help!
Ok, I got deep into a world of modding over the past 2 weeks. Here is exactly what I did to get to this point.
Starting from bone stock (1999 650)
Supertrapp IDS II Exhaust (Is used and needs repacking, but I also tried straight pipe with the same results)
Repainted Exhaust header/pipes with high heat black paint
Removed air box
Added K&N filter
Changed stock 148 main jet to a 160
Still running the stock 40 pilot jet
drilled and shimmed the slide with 2 #3 washers
I'm also out 3 1/2 turns
Choke is seated too
After the carb rebuild (I made sure the rubber boot was free of holes and created a seal), I start the bike.
What happens is this:
I can rev at idle like normal, can easily hit 5k.
A slow rev though, I can't get about 3-4k without hesitation. If I hold the throttle, it will hesitate, drop a hair, then catch up with the higher rev.
However, upon load, I can't get above 3500, after that, I get severe lugging and bucking. I can only get to about 45mph before she hits a wall.
I originally thought I was running too lean (which is still possible), and I have to special order the #50 Pilot Jet that I want.
I'm just racking my brain as to what it could be.
Additionally, at the coast enrichener, there is a small gap where it sits on top of the "O" ring. It is sealed at the "O" ring though, and not leaking.
I tried another slide assembly from another carb (from a KLR). It does sit better in the groove, however, now here are my symptoms.
a) No tach, it will bounce like crazy or stick at 3k
b) Nothing more than 45mph (It will start puttering, bucking, and lugging)
c) Low end is fine, I can start out, accelerate at a normal pace, and shift just fine...If I punch it though, I will get lugging and rough acceleration.
I am putting my original slide back in after the engine cools.
The original slide does not have a hole.
My valves are lightly tapping, which is normal.
I don't think it's a jet issue...I can't get above a certain rpm...AT ALL.
Should the slide be lubed up? I don't remember if mine was.
Again, it revs just fine...the low end is fine...but when I try to punch it, or go about 50mph, it starts lugging, bucking, and puttering...
Please, I'm at a loss here...