Is this right?
#1
Is this right?
Should the be a chain noise from the top end of the engine? I know the timing chain is there but I just feel like it is unusually loud.
Also Im having a tough time tuning my carb. When I decelerate quick or engine break, my bike gurgles a lot and pops some. My setup is two brothers slipon #128 MAIN #35 pilot 3.25 turn out on a/f screw snorkle removed. Pittsburgh elevation 1200 ft.
With that set up the gurgling makes me think Im running lean, but I have a lot of black stuff on my exhaust tip which makes me think its rich. Also I only put high octane (I think 92 or 93) in.
Also is proper idle (1300 rpm) one bar or two bars after 1000 mark.(see pic below)
Today I removed the airbox lid to see if it helps but havent tested yet.
Thanks Andy.
P.S. Not sure if I ever showed you guys the reflective decals I made. They are black during the day but when lights hit them at night they reflect white!
Also Im having a tough time tuning my carb. When I decelerate quick or engine break, my bike gurgles a lot and pops some. My setup is two brothers slipon #128 MAIN #35 pilot 3.25 turn out on a/f screw snorkle removed. Pittsburgh elevation 1200 ft.
With that set up the gurgling makes me think Im running lean, but I have a lot of black stuff on my exhaust tip which makes me think its rich. Also I only put high octane (I think 92 or 93) in.
Also is proper idle (1300 rpm) one bar or two bars after 1000 mark.(see pic below)
Today I removed the airbox lid to see if it helps but havent tested yet.
Thanks Andy.
P.S. Not sure if I ever showed you guys the reflective decals I made. They are black during the day but when lights hit them at night they reflect white!
Last edited by Lawnica1; 05-17-2012 at 04:03 AM.
#3
Sounds like you're rich.
Is the chain noise in the engine the classic "rocks shaking in a coffee can" at around 5000 rpm? If so, cam chain tensioner may be the culprit. Look up Krieger's manual tensioner -- I have one now. This is very common with our bikes.
Is the chain noise in the engine the classic "rocks shaking in a coffee can" at around 5000 rpm? If so, cam chain tensioner may be the culprit. Look up Krieger's manual tensioner -- I have one now. This is very common with our bikes.
Last edited by IDRIDR; 05-17-2012 at 04:53 AM.
#5
I'm betting you are rich, too. 128 and more than 3 turns out on a stock engine is a recipe for rich. Don't worry so much about the gurgling/popping on deceleration...if it's really bad, make sure you don't have an exhaust washer leak, or, a leak at the slip-on connection. And, for heavens's sake, use 87 Octane...the black soot you see COULD be a result of the additives required to boost the octane above 90....even if it's not additive soot, it's a waste of money with no increase in performance.
#6
I used to have the a/f screw around 2.5 but the popping worse then. A dirtbike mechanic said I should go at least with a 45 pilot jet to stop the popping. This seems way to big.
I'm not sure if I would call the noise rocks in a coffee can I'll have to listen to it more closely after work.
I'm not sure if I would call the noise rocks in a coffee can I'll have to listen to it more closely after work.
#7
Your rich especially if your exhaust is stock and there is no need to go up on the pilot even if you have a performance exhaust and do not let the guy who suggested the 45 pilot ever touch your bike.
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