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Message started by Savage Bobber Dave on 05/18/07 at 08:25:40

Title: HELP! it only runs on choke
Post by Savage Bobber Dave on 05/18/07 at 08:25:40

the bike has been rejeted for the muffler . i checked that, i made sure there is no air leaks in the carb and i check the air mix screw...i just cant get it rite....It just doesnt want to run with out it being on choke...its an 03 with 10,000 miles on it...

any help would be good, thanks

Title: Re: HELP! it only runs on choke
Post by Savage_Rob on 05/18/07 at 08:43:42

If running with the choke (actually an enrichener) pulled out works, your pilot circuit is too lean.  You need to adjust that to a richer setting with the idle mixture (pilot) screw.  You should also adjust your idle speed when you do this (follow Lancer's Straight & Simple Carb Tuning thread in the Tech Ref forum).  If you are unable to adjust the pilot circuit sufficiently with the screw, you may need to install a larger pilot jet.  It's also possible your existing pilot jet may be dirty/clogged since the enrichener bypasses the normal pilot circuit.  A simple cleaning could correct it.

Title: Re: HELP! it only runs on choke
Post by Savage Bobber Dave on 05/18/07 at 09:29:36

my next step is to clean it more

Title: Re: HELP! it only runs on choke
Post by verslagen1 on 05/18/07 at 11:12:08

Make sure that slide shines... I swear I'm getting 5 mpg better since I've cleaned mine.   ;D

Title: Re: HELP! it only runs on choke
Post by skepticalnewt on 05/18/07 at 14:09:49

I love the paint job on the tank!!!

sn


Title: Re: HELP! it only runs on choke
Post by Savage Bobber Dave on 05/18/07 at 14:35:19

thanks

Title: Re: HELP! it only runs on choke
Post by Greg_650 on 05/19/07 at 06:09:46

At least your carb is easy to reach.  Have you drained and removed the bowl?

Title: Re: HELP! it only runs on choke
Post by Savage Bobber Dave on 05/20/07 at 09:59:52

it has been drained and removed...

Title: Re: HELP! it only runs on choke
Post by Greg_650 on 05/20/07 at 12:20:14


Savage Bobber Dave wrote:
it has been drained and removed...

Was it clean gas?  Any debris or rust?  Was the bowl full

Did you check to make sure the float valve is working correctly as far as filling and shutting off the gas?

Title: Re: HELP! it only runs on choke
Post by Savage Bobber Dave on 05/22/07 at 07:42:06

i checked all of that....still nothing

Title: Re: HELP! it only runs on choke
Post by Greg_650 on 05/22/07 at 07:57:54


Savage Bobber Dave wrote:
i checked all of that....still nothing


Then I'd be looking into your jets a little closer.


Title: Re: HELP! it only runs on choke
Post by justin_o_guy on 05/22/07 at 10:56:19

What happens if you get it wound up, beyond 3/4 throttle, & push the choke in?

Title: Re: HELP! it only runs on choke
Post by Greg_650 on 05/22/07 at 11:25:14

Goes into after burner?

Title: Re: HELP! it only runs on choke
Post by verslagen1 on 05/22/07 at 11:36:30

So what was your last mod?
Was it running well before the mod?
Can you go back?

A little history please...

Title: Re: HELP! it only runs on choke
Post by justin_o_guy on 05/22/07 at 11:39:00

Well, I was thinkin if it ran okay on the main jet, but needed choke on the pilot circuit, it would help with t/shooting...

Title: Re: HELP! it only runs on choke
Post by Greg_650 on 05/22/07 at 11:48:47


justin_o_guy wrote:
Well, I was thinkin if it ran okay on the main jet, but needed choke on the pilot circuit, it would help with t/shooting...

I was wondering if he has crap in the main and pilot jets, but as Verslagen says, we need more to go on.

Title: Re: HELP! it only runs on choke
Post by verslagen1 on 05/22/07 at 14:29:44

The last guy with a fuel problem had a new tank but didn't tell us.  Although I already knew it.  Turned out to be the problem, dirty tank.   ;D

Title: Re: HELP! it only runs on choke
Post by Greg_650 on 05/22/07 at 14:40:10


verslagen1 wrote:
The last guy with a fuel problem had a new tank but didn't tell us.  Although I already knew it.  Turned out to be the problem, dirty tank.   ;D

And last week I cleaned out a tank, 2 petc0cks and 2 carbs on one bike.  I found paint chips, metal shavings, water and a whole bunch of rust.

So, it only runs on choke?  Why?

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