Tech Difficulties with the Mutts first hard Winter

Unread post by **rickf** » December 14th, 2009, 2:05 pm

Well, it doesn't really matter. If it ran well before then there is a repairable problem with it. Carburetor theory is the same no matter who makes it. You are not getting enough gas to the engine so something is clogged. It does not take much to clog a passageway. you want to make sure that when you clean it you are pushing the dirt in reverse of the direction it would normally be moving. That way you do not jam it in tighter.

Rick

sherwan_88 · Unread post by **sherwan_88** » December 15th, 2009, 8:33 am

Okay, so pulled the carb again and this time went crazy with the carb cleaner, any hole i could find, i just plugged it with a flood of carb of cleaner, and it actually worked. After finishing up i took it for test drive, so it drives good, no backfires, but if i floor it, it kicks down and comes back up and then if i floor it again it would accelrate without the kick down, the kick downs seem to pop in randomly at a constant speed too.

Unread post by **rickf** » December 15th, 2009, 10:38 am

Progress! I think you are pretty much where you should just leave it alone for a while and see how it does. The symptoms you are describing are pretty much normal for a mutt and depending on the quality of the gas it might be worse for you. Do you have a lot of alcohol in your gas?

Rick

sherwan_88 · Unread post by **sherwan_88** » December 15th, 2009, 11:36 am

Yup! i don't know whats the ratio but it seems a lot, that red stuff sticks like glue if left for a while. i had a quite a time just removing that red sticky stuff from the throat of the carb and the accelerator pump but managed not to scratch or damage it.

Unread post by **rickf** » December 15th, 2009, 1:34 pm

Red sticky stuff? Sounds like varnish. How long did this carb set?

Rick

sherwan_88 · Unread post by **sherwan_88** » December 16th, 2009, 2:15 pm

Don't know if its varnish or alcohol but it sure does make hell. It also sticks to the lines, recently i noted that.
This carb set lasted about 300 miles in 3 months.. i guess.

Unread post by **rickf** » December 16th, 2009, 9:33 pm

I think you misunderstood my question. How long did the carburetor sit without running or any fresh gas going through it? Does it build up this gunk while you are running it? Alcohol will leave no residue at all so whatever you have is coming from the gasoline part. Varnish is reddish brown, closer to brown and it smells like paint thinner.

Rick

On edit, I just thought of something. Are you running a K&N air filter on your snorkel? If so does the gunk look anything like the oil on the air cleaner?

sherwan_88 · Unread post by **sherwan_88** » December 17th, 2009, 10:59 am

The carb does sit for long at all, i drive it on a daily basis, since the weather permits me to drive the mutt, i use it as a full time ride around the city. The intervals would be no more than 24 hours, with the exception of some weekends a year.

The stuff builds up mostly when its running.
The filter is not KN&N, actually its a Chinese knock off and needs no oil.

Today a new problem popped up after some days of driving, it won't idle, just dies when foot of the accelerator, it drives but it shugs and jerks and the acceleration is different every time. Well the carb has to come off again now.

Unread post by **rickf** » December 17th, 2009, 1:15 pm

you need to find out what is in the gas or in the tank that is fouling the gas.

Cobra5 · Unread post by **Cobra5** » December 20th, 2009, 11:03 am

Sherwan,

I think you need to start at the fuel tank and work forward to the carb. If you've been driving it everyday with not problems until now than something or someone has contaminated your fuel. I would pull out the fuel tank and the fuel lines and clean them out. Change all the fuel filters and don't forget to clean your fuel pump. Also you'll have to clean the carb again.

sherwan_88 · Unread post by **sherwan_88** » December 20th, 2009, 3:01 pm

Sorry for the late reply,
I am currently in Lahore having some home improvement done and basic chores, won't be back to the mutt for a few days but when i get back, i will try to get the problem fixed and get back.

Unread post by **rickf** » December 22nd, 2009, 6:28 pm

I just got in myself, been up to my ass in snow. I mean that quite literally!

Rick

sherwan_88 · Unread post by **sherwan_88** » December 30th, 2009, 12:17 pm

Okay,
I got back yesterday and have a made a 2 videos of whats actually wrong. As they say a picture is worth a thousand words.

First start.
http://www.youtube.com/watch?v=WEYFY_5XUxM
As you can see it misses at normal idle, and at high it gets better.

After a test drive
http://www.youtube.com/watch?v=4UFG_yhniPM
Needs choke or accelerator to idle other wise it would die.

Unread post by **rickf** » December 30th, 2009, 7:36 pm

It is hard to hear minute sounds in the video and I wouldn't rev it that high to often or it will get real quiet! Have you checked the plug wires, one may be bad. Looking at how far you could back out that idle mixture screw makes me think you might have a vacuum leak, Check the manifold.Also, the distributor seems to be turned a little to far to the left, is the timing set correctly?

Rick

Tech Difficulties with the Mutts first hard Winter

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