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Old 03-16-2007, 04:36 PM   #1
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Default My Jammin has been nothing but problems.

It seems that every time i want to drive it it won't start, and then i have to take the glow plug out, and turn it upside down and empty the gas from the engine, and then it seems to start. im having to adjust my idle needle every time i drive the car, and then when it seems to be working, it wont start the next day.

Do i have a problem, or is this normal
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Old 03-16-2007, 04:37 PM   #2
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im an RC n00b, so i cant tell if its running right or not...
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Old 03-16-2007, 05:11 PM   #3
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You're running it too rich if this is after proper engine break in. I suggest you spend the time to read up on engine tuning.
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Old 03-16-2007, 05:56 PM   #4
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Lean the hsn out an 1/8 of a turn,, little bro my truck use to do that !!!!
Since it is after break in dont tune to temp tune to performance!!!
They can be a pain in the butt till you get it down... but wasnt it a nice day to learn..
Whats happening is when you prime it first it loads the carb with fuel then with the HSN being rich loads up even more.. probably soaking the glow plug and locking the engine.. lean it out to control how much fuel is being took in by the carb..
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Old 03-16-2007, 06:07 PM   #5
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This is how I got the hang of it its quite useful

http://www.youtube.com/watch?v=oSmMzpZM_As
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Old 03-16-2007, 07:58 PM   #6
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Actually its not your Jammin your having trouble with, that has nothing to do with it. It is your engine...
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Old 03-16-2007, 08:24 PM   #7
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How many litres/gallons on the engine?
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Old 03-17-2007, 07:09 PM   #8
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Got it used.

He said it was used for 3 weekends of racing.

that could be anything though.


I've put 1 quart through it so far. donno bout him.
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Old 03-17-2007, 08:31 PM   #9
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Maybe take the back off and the head off and take some high res pics of the back and the top of the piston and post em here.
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Old 03-18-2007, 07:32 AM   #10
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Quote:
Originally Posted by FrankBlack
How many litres/gallons on the engine?
How about what kind of engine is it????

Since his sig says Jammin X-1 RTR, I'm assuming it's still got either the Force 26 or 28 on it. My experiace with the Forces is that the stock setting of the LSN flush with the carb is WAY too rich. Go about 1/2 to 3/4 turn in on the LSN and it should be a lot eaiser to start and keep running.
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Old 03-18-2007, 07:12 PM   #11
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Quote:
Originally Posted by rezenclowd3
Actually its not your Jammin your having trouble with, that has nothing to do with it. It is your engine...
yea totally agreed with u.. it actually engine problem and not jammin buggy problem.. so think first before ever posting in this thread.. and better change the thread topic..
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Old 03-18-2007, 07:15 PM   #12
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Now guys dont get sore!!!! He's new to this and it's his jammin!!!
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Old 03-18-2007, 08:49 PM   #13
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If you are new to tuning nitro engines then my 1st suggestion is to not use the idle screw as a tuning option.

Second of all is to reset your mid needle to factory settings if you have adjusted it (if you have that info). Most motors are sold pretty close on the midrange settings, but the high end is fattened greatly to supply lubrication during the breakin process.

The high end needle is what you will want to focus on until you get more experience with tuning.

A digital thermometer (cheap = Duratrax for about $25) will greatly assist you on not only learning how to tune your engine, but making it last as well.

Things seem kind of backwards when tuning, colder days need more fuel because there is more oxygen in the air & hot days to the contrary. Seems like it should be the other way, adding fuel because it is hot, but That Is Not the case.

Anyway, make adjustments to your high end needle, & then run a lap or two to make sure that your carberator has been cleaned out from any previous adjustments. You are looking for top end speed at this point.

As far as idle goes, you should let the engine idol & then it should start to gain RPMs in about 20 seconds, that in my opinion is where I set my stuff up to. But this is just my preference.

Don't chase problems unless you have installed a quality glow plug.

Set your top end 1st, Idol next, & for now not the midrange (other than returning it to factory settings) & hopefully in about a month you will have learned enough that you no longer want to give up on Nitro (you will think that a few times) know abit more about tuning & truely realize that you made an excellent choice when you decided to go with NITRO.

My appologies for taking up space on this forum. Happy racing to you all.
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