Honda ATV Forum banner
1 - 20 of 27 Posts

· Registered
Joined
·
4 Posts
Discussion Starter · #1 ·
ok, so i took my 4 wheeler to an authorized honda repair shop because after installing an HMF sports slip on exhaust i kept bogging while trying to run in the winter time. I was also having the problem with the cold start as i see many others are. so the repair place installed a 170 main jet, and a 42 slow jet and adjust the carb, it's still a pain to get it to start in the cold (i live in northern Ohio) but when it does and gets warmed up it will actually run if i keep the choke on a lil over half way.. is that normal? i'm thinking it's probably not for the best to ride it like that but thats the only way it'll run, if i move it up anymore it'll bog out realllll bad..

any help would be greatly appreciated!

thanks,
tim
 

· Premium Member
Joined
·
18,211 Posts
Welcome to the forums..

I think you may actually have to step up the main jet during the cold months, and drop back to the 170 in the summer...Are you running with the airbox lid on or off?
 

· Premium Member
Joined
·
6,604 Posts
If you are running no airbox lid, put it back on for the cold months. Or rejet for the cold weather. Don't run with your choke on.
 

· Premium Member
Joined
·
18,211 Posts
Agree also^^^^^^ plus running the choke on builds excessive carbon on the plug causing premature fouling, by running the choke your trying to richen up the carb by restricting airflow to get more fuel delivery, like red stated if your lid is off put it back on and that should help.
 

· Registered
Joined
·
4 Posts
Discussion Starter · #5 ·
lid is on i just purchased a UNI filter right now i have a generic one, never rode with the airbox lid off tho, thanks alot for the quick information..so its best not to ride it until i get it jetted again? not trying to mess anything up (i'm a newbie lol)
 

· Premium Member
Joined
·
6,604 Posts
Choke is only meant to be used to richen up the mixture while starting. Try going up a size on the pilot jet.
 

· Registered
Joined
·
2,732 Posts
Welcome to the forums.
 

· Premium Member
Joined
·
18,211 Posts
Choke is only meant to be used to richen up the mixture while starting. Try going up a size on the pilot jet.
Don't you mean down on the pilot and up on the main? I think you did you tyoed faster than the old brain could think...lol
 

· Premium Member
Joined
·
18,211 Posts
Pilot controls idle to about 1/4 throttle needle controls 1/4 to 1/2 main jet covers all the rest of the range. Being that if you run your choke on you are restricting airflow....therefore allowing more fuel to enter the combustion chamber. if you were to drop back a size on the slow jet (pilot jet) you should be fine.
 

· Premium Member
Joined
·
6,604 Posts
But Moose, if he goes down in jet sizes he will reduce the amount of fuel being added. Why would he want to take fuel away?

Were getting you there!!! LOL
 

· Premium Member
Joined
·
18,211 Posts
ok Im starting to confuse myself!!LMAO I can phisically do it tell is another story. how about resetting the air mixture screw then instead of say 3 turns out crank it in about 1/2 turn to restrict a little airflow?

DUDE.. bring me your quad I can fix it!! my dad was a tv repair man he has all these cool tools I can fix it!!!lol
 

· Premium Member
Joined
·
18,211 Posts
You guys don't remember that quote? Spikoli from Fast times at Ridgemont high...lol hey the tv option would be cool but it would keep me from hitting my top speed goal of 71MPH lol
 

· Premium Member
Joined
·
18,211 Posts
I forgot about Spikoli...

"I got this oil that makes the best french fries"
ROTFLMAO!!!! I forgot that quote ...now I gotta go rent it makes me want to watch it. I haven't seen that movie in years!!!
 
1 - 20 of 27 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top