Double check the connections on all your lines to the carb. Perhaps you have a vacuum line disconnected somewhere. When you replaced the needle, did you "clip the tit" on the yellow plastic retaining piece or (quite possibly) was the tit already clipped? When reseating the top cover and the rubber diaphragm, are you sure you got the diaphragm and cover properly aligned? The rubber diaphragm top edge has a loop that must fit into a certain depression in the carb body. The metal cover has a small notch which must go over this loop. With the air filter out and the airbox cover off, reach into the carb throat with a long screwdriver and see if the metal slide holding the needle will move up and down. If you did not clip the tit, it is possible that the needle is not free to float (held only by the small spring pressure), is cockeyed and stiff, and can bind in the jet hole into which it fits.
Factory Pro Jet install fail
I didn’t completely remove the carb cause it looked like I could access everything I need to access w/o disconnecting everything.
Disco’d the fuel line and vac tube from the tank set it aside. Loosened the hose clamp holding the carb to the manifold.
Took off the vac chamber cover swapped out the Dynojet needle for the Factory needle. Then I removed the float chamber and swapped out the slow jet (55>58) and the main (200>220).
Reassembled everything making sure the top cover captured the diaphragm in the top body groove, and made sure the carb seated in the insulator.
At this point I figured I’d light it up to make sure I hadn’t made any mistakes.
It started and idled fine, but the vacuum piston / jet needle isn’t rising when I roll on the throttle.
I would really appreciate it if someone could help me sort what’s wrong.
Thanks in advance!
Chris
Disco’d the fuel line and vac tube from the tank set it aside. Loosened the hose clamp holding the carb to the manifold.
Took off the vac chamber cover swapped out the Dynojet needle for the Factory needle. Then I removed the float chamber and swapped out the slow jet (55>58) and the main (200>220).
Reassembled everything making sure the top cover captured the diaphragm in the top body groove, and made sure the carb seated in the insulator.
At this point I figured I’d light it up to make sure I hadn’t made any mistakes.
It started and idled fine, but the vacuum piston / jet needle isn’t rising when I roll on the throttle.
I would really appreciate it if someone could help me sort what’s wrong.
Thanks in advance!
Chris
1 - 4 of 4 Posts
Update: what a fucking dufass!Double check the connections on all your lines to the carb. Perhaps you have a vacuum line disconnected somewhere. When you replaced the needle, did you "clip the tit" on the yellow plastic retaining piece or (quite possibly) was the tit already clipped? When reseating the top cover and the rubber diaphragm, are you sure you got the diaphragm and cover properly aligned? The rubber diaphragm top edge has a loop that must fit into a certain depression in the carb body. The metal cover has a small notch which must go over this loop. With the air filter out and the airbox cover off, reach into the carb throat with a long screwdriver and see if the metal slide holding the needle will move up and down. If you did not clip the tit, it is possible that the needle is not free to float (held only by the small spring pressure), is cockeyed and stiff, and can bind in the jet hole into which it fits.
I was meticulous in my disassembly/reassembly!
I had even cleaned up my garage so I wouldn’t be tripping over the snowblower, bicycle, my fleet of hand trucks (critical for 64 yr old shitty back syndrome), and all the junk I’ve acquired over the past twenty years living here!
I brought my Genuine HONDA manual out and set it on the newly cleaned counter top and started to tear down the intake.
I replaced the pilot jet, replaced the main jet, replaced the Dynojet needle with the Factory Pro product.
Put everything back together.
Dropped the tank back on, looked everything on the carburetor side over again. And lite it up.
Now here’s where everything went sideways.
If you’re going to test out your new carburetor adjustments you’ve got to reattach BOTH the fuel feed tube and the petcock vacuum line, otherwise your carburetor will not function properly.
Let me emphasize…
Each and every time you disconnect those two tubes ( from the opposite side of the bike from the carb) when you remove the tank, you MUST reconnect then BOTH when you put the tank back on BEFORE you test your work.
Otherwise you carburetor will not function as designed.
After learning this most valuable lesson, I now have ~25% more power, NO BACKFIRE UNDER ANY CONDITIONS!!!
Roll on in third at 10 MPH just digs!
Moral to the story…
There are two sides to every bike, the carb side and the other side. Don’t forget the one or the other as you strive to find balance in you life or in your air/fuel mixture!
Peace and love to all!
Lololilolol
The same thing with the garage cleanliness
I and my husband had it with our grungy garage!
It is a 2 car garage that is home to my husband's race car project plus all the tools he needs to maintain and do projects around the house. I find that the surfaces and tops of all our cabinets and workbenches and stuff that doesn't fit in drawers (like welders and torches and stuff) are always covered with dust and grit.
I think we've got 4 main causes:
1) Poor sealing of the garage door that allows dirt and dust to blow in (I'm fixing that this weekend)
2) Grinding and cutting metal inside the garage blows crap everywhere
3) Spray painting overspray gets all over sometimes
4) We have two pushbikes and the kids have bikes like this, be lucky to get my misses on one, and I am wondering the best way to store them
The garage door is opened frequently so stuff is going to blow in. And my husband tried to move the metal saw and grinder outside when chopping metal. But he still needs to do grinding on the bench when it needs to be held in the vise.
I and my husband had it with our grungy garage!
It is a 2 car garage that is home to my husband's race car project plus all the tools he needs to maintain and do projects around the house. I find that the surfaces and tops of all our cabinets and workbenches and stuff that doesn't fit in drawers (like welders and torches and stuff) are always covered with dust and grit.
I think we've got 4 main causes:
1) Poor sealing of the garage door that allows dirt and dust to blow in (I'm fixing that this weekend)
2) Grinding and cutting metal inside the garage blows crap everywhere
3) Spray painting overspray gets all over sometimes
4) We have two pushbikes and the kids have bikes like this, be lucky to get my misses on one, and I am wondering the best way to store them
The garage door is opened frequently so stuff is going to blow in. And my husband tried to move the metal saw and grinder outside when chopping metal. But he still needs to do grinding on the bench when it needs to be held in the vise.
1 - 4 of 4 Posts
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