Jet Size Question
Seasoned HDF Member
Joined: Dec 2010
Posts: 7,736
Likes: 1,524
From: Coromandel Peninsula New Zealand
People think the main is not important because you don't spend all your time at 3/4 throttle but they are forgetting that main jet size impacts on the needle mixture too, also, if one day you decide to go flat out just for ***** and giggles you could melt a piston in less time than you might imagine. The main jet gets used a lot when hauling your old lady and luggage, especially up hills.
Jetting is holistic, you need to review the whole set up and not make uninformed assumptions.
Jetting is holistic, you need to review the whole set up and not make uninformed assumptions.
Thread Starter
|
Intermediate
Joined: Nov 2011
Posts: 30
Likes: 0
From: Alberta, Canada
I ended up ordering a cv products kit. I put in a 45 slow and a 180 main. I am at 3500 feet above sea level so I didn't want to go too rich. When I pulled the old needle out it had three shims. Was that stock or from a previous owners mods maybe ?
Thread Starter
|
Intermediate
Joined: Nov 2011
Posts: 30
Likes: 0
From: Alberta, Canada
I ended up with a 45 slow and 180 main, put everything back together about a month ago and fired it up no problems...
When I turned it off I smelled gas so I pulled the AC backing plate off and the half brass half plastic inlet 90 to the carb was cracked.
I just got the 1 piece brass in a few days ago, went for a ride today. Runs pretty good and the Samson pipes sound nice.
There is quite a bit of "popping" when I let off the throttle or decel.
Any ideas?
When I turned it off I smelled gas so I pulled the AC backing plate off and the half brass half plastic inlet 90 to the carb was cracked.
I just got the 1 piece brass in a few days ago, went for a ride today. Runs pretty good and the Samson pipes sound nice.
There is quite a bit of "popping" when I let off the throttle or decel.
Any ideas?
Banned
Joined: Jan 2012
Posts: 3,098
Likes: 474
From: Location location.
Some popping on decel is good ,banging and exploding is not.
If you want to get rid of the popping go out on the fuel mixture screw a 1/4 of a turn at a time till it's gone. They pop when you chop the throttle because the carb works only through the pilot and I reckon it should burble and pop a little or it's too rich.
If you want to get rid of the popping go out on the fuel mixture screw a 1/4 of a turn at a time till it's gone. They pop when you chop the throttle because the carb works only through the pilot and I reckon it should burble and pop a little or it's too rich.
Last edited by badcooky; Apr 11, 2012 at 03:12 AM.
Thread
Thread Starter
Forum
Replies
Last Post
Gadgetech
Exhaust System Topics
1
Aug 27, 2006 03:35 PM
