Choke not working when cold

I have a 82 xj650 maxim and the choke will not work when the bike is cold.
any help will be appreciated.


Thanks
James Cardwell

 

James, is the cable lifting the enrichment plungers, or do you mean the bike won't start from cold, using the'choke'?

 

Yes I have adjusted all the cables, and yea i mean the bike will not start from cold.

 

Did you clean the carbs? If not you will have to do that-thouroughly. In the bowls there are small jets that often times get clogged. Those are your jets that work with your "choke". If one or more a clogged it will have a hard time starting. I will post a link to what I am talking about in a bit.

 

I'm going to get a complete rebuild kit for the carbs but before that i will check the ports you are talking about.

Thanks
James

 

here are the links to help walk you through it.

Carb cleaning:
http://xjbikes.com/Forums/viewtopic/t=2 ... carbs.html
Enrichment circuits "the ones I was refering to":
http://xjbikes.com/Forums/viewtopic/t=8918/
Bench syncing:
http://xjbikes.com/Forums/viewtopic/t=6366/
These guys walk throughs are very good and I have used them many times. Remember not to rush through them. They may look intimidating but after you get in there you will realize they are not that bad. Good luck!

 

Have you tried starting the bike not using the "choke". During the summer it is sometimes unneccssary. But if that will not work it is probably your cold start enrichment circuit, look it up, it could be difference between starting the bike and not starting the bike. Have you checked everything else, are you sure that the "choke" is the reason the bike will not start. Spark, fuel, air.

 

Yes I have tried starting with out the choke and same thing happens. I also checked the fuel, spark and air coming in. I will pull the carbs off the weekend and clean them.




82 xj650j k/n pods, 4 into 1 exhaust

 

This is all very vauge. Some more info on your process and whats going on would be greatly appreciated. But these guys are right. Sounds like carbs. They need a thorough cleansing and a good look at all your jets and such and make sure they're the right number for your bike. I see you have pods and a 4-1 exhuast. This can make your carb rebuild very tricky. A good rule to follow for pods, (not sure how this would work for the 4-1) is to go two jet sizes up.
Your main and pilot jets are as follows
Main:110
Pilot:40
So take a good look at the numbers and see how many sizes up they are when you take off your carbs.
Have you checked your plugs after trying to start her? They could be fouled! If they're wet after you try to start it try sticking a new or clean plug in and start her again.
So heres a small list of easy things you can do
Check plugs after starting. Wet=fouled. Replace.
Check your vac line for cracks or gas in the line. Gas in the line= petcock rebuild or new petcock
Make sure the choke plungers are FULLY seated with the choke closed. I made this mistake once when lubing the cable
Clean Air Filter. Gunked up air filters can cause lack of air which means too much gas is going to your cylinders.
Iiiiii think after checking all that it'd be time to take apart your carbs.
Also I'd run a bit of seafoam in your tank and see if that loosens anything up.
-Chris

 

I am on the process of cleaning and sealing the tank with a kbs kit.
the bike had a recent tune up before riding season started.
new plugs, filters, full synthetic oil change, with gear oil. also running two heat range hotter plugs. the jets are stock.
I have had the carbs apart before. just didnt know what to clean.

 

sorry i was wrong only 1 heat range hotter

 

Jets are stock??? May not be getting ENOugh fuel then.. hmm. That enrichment circuit sounds like a great place for you to start then sir. Try going up a couple jet sizes as well. Pods make the carbs suck a LOT more air.
-Chris

 

What size jet should i put in the carbs

Thanks
James

 

Basic rule, and this is not set in stone because Pods have various and sometimes not concrete effects on our bikes, is two jet sizes up. Meaning, more fuel. So, instead of a 110 you'd need a.. I forgot how they go up.. I dont quite think its in increments of 1.. But basically a 112. Then put in a smaller diaphram needle in each carb. You carbs have 10s in them. Mine have 20s. Test test test, and if that doesnt work. try going up again.
Pods create a HUGE Hassle on our bikes. Its best to stick with that bulky annoying factory airbox to get satisfactory results
-Goldie