So here is my setup
V1
Stock pipe
Stock intake bored out
Dellorto SHA 14.12 carb
#70 jet
Poloni 75cc
.030 spark plug gap
High flow air filter
I just finished putting my motor back on my bike and it won't start. It has lots of compression. The pedals are very hard to turn. It puffs and sucks but won't start up.
I need help..
thanks.
fuel, spark, compression...those are needed to run...do you have these??
yeah it seems if I open the throttle a bit it pops like it wants to start..
this probably won't help...
hahhaa yeah not really, thanks though.
Did you put the piston in up-side down? Arrow should point to exhaust.
If not, close the gap on that plug.
just make sure you have spark... compression is sometimes a problem with these kits. too much compression.
try bump starting it or slap on a head and base gasket and try there. its also cold out... so break out your engine cozies
I'll try closing the spark gap.
ok so I closed the gap a bit went back down to a #60 jet and it will start but if the rear wheel is on the ground it goes chop chop chop die...
Ok so it will not start up on the stand I have to get going and pedal like crazy then it eventually starts. It will knock at idle and then die.
chop chop chop die? could you explain that a bit... more
points or cdi? regardless, check for issues there. if im understanding that chop chop chop correctly
dont pedal it until you have it tuned ... dont wanna kill your starter plate/leaf spring.
run with it and pull the clutch
it was knocking is the chop chop sound. I have points also.
forgot to mention I have a high comp head.
and yes it has a TON of compression.
If you add compression and have to retard timing to prevent detonation.
The retarded timing on higher compression engines has to do with the reduced distance from the spark plug to the piston crown.
ok thank you I will try that out.
Check out the Wiki and maybe next time around place this thread in the repair or tuning forum.
http://www.mopedarmy.com/wiki/Fred%27s_Guide
POST A PIC OR YOUR PED TOO!
a #60-#70 jet is really small. With a pipe people are normally running around the mid 90s range, give or take.
With the stock pipe and with a high flow filter I would guess it is starving for more fuel. Try moving higher into the 70s to high 80s.
Don't you think the bike should at least run with a too small of jet?
No, not really. And if it did run it could potentially seize the piston in the cylinder and destroy it.
Proper jetting is the magic of tuning.
What is with people buying Polini kits for their mopeds when they don't even understand jetting? Jesus.
Eoban, kids don't read they jump to conclusions expecting shit to work or things to be handed or done for them. Common sense has disappeared along with patience. I don't see simple mechanical skills and the newest generation of techie kids working well together.
you know what "Eoban" Fuck you. If you're so smart when it comes to this thing why don't you offer some help instead of acting like you know everything and offering nothing but some childish insult. If you can't help then just shut up.
YES. i was waiting for that to happen.
opel, you have to have a thick skin to be here. you have to give a chance for all the very experienced guys to make fun of you first and call you fckface, and then they'll help you. and then, someday, you can call other people fckface in return.
actually, no one even called you f*ckface yet. you got off easy.
To those of you offer your help it is greatly appreciated. I am leaving it for tonight so that I don't make the situation worse. As far as jumping to conclusions. I think you are the one jumping to conclusions that I'm just some kid. May be young and new to 2 stroke engines but I probably have more mechanical skill in other areas in my pinky finger that you do in your tiny judgmental brain. If your so full of expertise you should spend your time helping than sitting behind your keyboard acting like your some kind of tough guy.
Aron, ironically, you also are acting like a tough guy. Just let it go.
You need to gather more data, and the solution will present itself.
Verify
Piston orientation (arrow down)
Spark. Hold the plug on the cylinder and try to start the motor, does it spark? Check your timing, make sure your point gap is correct (see the wiki)
Fuel in the tank with a good flow from the hose
Fuel in the bowl of the carburetor
Is the head installed with the head gasket and evenly tightened down?
Is the base gasket still intact? How are your case seals?
Aron, the resources are in front you on this site. Sniff around, send out some emails and you'll be alright. Ed, orangerobin, and many others are great with the V1. I can't stress enough how amazing the wiki can be as well as previous threads. I search a lot around here for my answers and avoid the commotion of creating threads. Your pinky finger must be massive to hold down my A&P, Lycoming, Honeywell, Rolls Royce certs. If you need anything in the future email me!
Ha! Its mopeds. You'll figure out
At least you got the best kind. Super tough. Real easy to get into.
Don't worry bout dummies being butt holes.
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