Problem starting Pit Pro 140cc

Hey all,

Brought my new Pit Pro 140cc about 3 weeks ago, and are having a hell of a game starting it. It keeps on kicking back, and really hurts when it does that. I cant even start it myself, I have to get my hubby to try and start it for me.
Its fine when it does run, apart from a bit of back fireing.

Can anybody help please?????????

It could be numerous things But the first is to make sure its at TDC when you kick. Then if its running too lean it can behave like that, I just went through it with my bike and it turned out to be sucking air through a cracked manifold seal. Clean out the carb and make sure the jets arent blocked, usually the pilot. While carbs off make sure that the mixture screw isnt screwed all the way in. If no luck make sure its not sucking air anywhere between the carby and head.

There are other things like valves etc. but just try these for now. You will probably find that the pilot jet is blocked from little bits of shit in the fuel tank. If so its always a good idea to run a inline fuel filter from your local bike shop for about 6-8 bucks. If the backfireing is a real sharp crackly sound then its lean and if its all burbly with smoke coming out the exhaust than its too rich.

another lady joins the ranks who said girls dont ride?

ok... kickback. first up, starting....turn it over slowly til its just past the compression stroke, then kick it hard no throttle, or just barely cracking it open...

someone(the mountain?) even suggests put it in gear, and roll BACK until it locks up. then kick it.

what else? what sort of ignition does it have? the irk or ork? irk will tend to kick back more. spark is too advanced, and not enough flywheel weight. not usually adjustable if it has the ork.

the backfiring will be mainly a valve clearance issue.

sorry, i aint going to repeat anything again, except this>>> right click on search, open in new tab hope it helps. youll find all the info you need by doing that

read this thread from a couple weeks ago, everything you need to know about properly starting an engine and avoiding kickback and more
Really Bad Kickback On My PitPro XR 140cc

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looking for a fair priced mechanic based in Melbourne western suburbs? WestMinis

got a Yx150 for sale, Brand New $420

lol thats my thread

Hey, as you have probably seen in that thread that DvDRip posted I have the exact same problem.
And I need to ask you something DvDRip or anyone else,
when I believe it is at TDC (when the kicking lever gives way) I bring it back up and kick
now this always happens, I hit a brick wall
so I've been told to kick after TDC so I do, but I hit a brick wall, so I bring it back up again and kick and hit another brick wall.
Its always 2 brick walls then it kicks properly but still gives the occasional, or regular I should say, kick back which kills my ankle.
the problem is that im very hesitant when kicking it because after finding out how hard it can kick back, I scared of kicking it.
So now I just bump start it, but if I get to the bottom of the hill and it hasnt started I will have to kick it so I need to figure out what im doing wrong with kick starting it.
sorry for asking my own questions in your thread Pit Pro Girl

whats the go with the 140 being a ***** to start??? when i had my 140 i found it heaps hard and the kick back hurt heaps...with the lifan 150 i hve it doednt kick back all apparently the 150s have a anti kick back mechanism wether this possible to put one in a 140 head i dunno i would need someone like cactus jack to confirm it

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yeh thats an idea,
is there any way we can put an anti-kick back mechanism into the 140's
well I have a XR 140 if that would make a difference.

yes you can get a decompression cam, not the easiest mod to do

MitchAustralia If it's been this long and you're still having the problem you need to take my original advice and remove the stator cover, that way you'll know you'r doing it right, I used to have the same problem with my 140 until I did this

take off the cover on the left of the engine, it's 3 small bolts, then it will look like this:

the brass coloured thing is your flywheel, it has a marking on it "T" & "F" when the T is at 12 oclock your engine is at TDC, it passes the mark twice when kicking over but one of these passes is the commpression stroke, you'll know it's the commpression stroke because it's hard to kick.
now turn the killswitch OFF and kick the bike over slowly while looking at the flywheel, you'll get to the commpression stroke and see the T mark come up to the top, now push it carefully until it just goes past 12oclock, now turn the killswitch back on and give the kickstart one good hard kick, if the bike kicks back doing it like this then there's something wrong with it, and if you don't wanna hurt your foot when you stuff up you should be wearing boots anyway

__________________
┌∩┐ ◣_◢ ┌∩┐ Will mod for beer

looking for a fair priced mechanic based in Melbourne western suburbs? WestMinis

got a Yx150 for sale, Brand New $420

put a lifan 150 outer rotor ignition on it, it'll start heaps easier. I've been ranting about these ignitions for a while now, because they work. I've got a 59mm crank in my yx140 (150cc) with very high compression and it starts easy. But it is very important that the tune is correct. Try a pilot jet somewhere between 35/40 if you're using a keihin carb. I don't know what to suggest for a mikuni. I drill my jets to size...