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Post by scootin on Oct 16, 2011 23:32:42 GMT -5
I just finished building my motor and now it won't start! :zap2:
Minarelli lc engine
Malossi MHR 70cc
Full circle crank
No leaks
Spark
Fuel
Should have compression(just built)
Motor turns over with no problems
Cvt is good
It turns over but when it tries to start it makes a grinding noise. Sounds like it is coming from around the starter gears. Acts like something is keeping it from starting.
I even tried spraying starting fluid into the cylinder to see if it was the fuel but it does the same thing! :banghead:
I just want to hear this thing run! It's been sitting for months! :beatup:
Please help! :sos:
Thanks
:thumb:
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Post by stepthrutuner on Oct 17, 2011 0:06:31 GMT -5
Do you have a kick starter? What does that do? I don't suppose you could do a short video with sound and post it? Have you checked the gears on the starter shaft etc.? Is started bolted in tight? have you done any mods to the front pulley/variator?
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Post by speedy1125 on Oct 17, 2011 0:09:46 GMT -5
in addition to above, is the bendix sticking? (not releasing)
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Post by scootin on Oct 17, 2011 0:39:10 GMT -5
I tried the kickstart with starting fluid. It fired right up and then died.
So, I need a new battery I guess, and It's not getting fuel.
Fuel is getting to the carb but not the cylinder for some reason.
I think the noise was because it wasn't turning over fast enough. I forgot to tell you that it was turning slow.
Not sure why Its not getting fuel. I cleaned the carb. It's got an 80 jet. It has a pollini reed cage with the blue reeds. I made a 5mm spacer for the reed cage. The reeds looked good when I installed them. I took out the oil system and pre-mixed a gallon earlier today. I cleaned the tank and vacuum petcock before I filled it.
I'm at a loss here. :dunno:
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Post by stepthrutuner on Oct 17, 2011 6:14:26 GMT -5
I assume your exhaust is not stopped up?
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Post by 90GTVert on Oct 17, 2011 7:45:21 GMT -5
:welcome: to the forum. Sounds like it will be a fun setup once you get it going.
Have you checked the float height?
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Post by Fox on Oct 17, 2011 15:49:06 GMT -5
in addition to above, is the bendix sticking? (not releasing) 2 stroke Minarellis don't have a bendix like the 50cc 4T's Speedy. They have a starter clutch. It works kinda like a ratchet in that it only grabs in one direction and slips in the other direction. It's behind the variator. |
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Post by scootin on Oct 17, 2011 16:20:06 GMT -5
Thanks, this forum is awesome! :rockon:
I'll check the float level. The scooter ran before it was taken apart and the carb was not touched. I cleaned it but didn't adjust anything. I don't know why its not getting fuel? :dunno:
The starter clutch is greased and working good. I checked it like 20 times! I think the battery is too low to spin the engine fast enough. I'm going to pick up a new one today.
I want to ride this thing so bad! :scoot:
Thanks everybody! :thumb:
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Post by Fox on Oct 17, 2011 16:31:56 GMT -5
Do you have the air filter box installed or is the back of the carb open?
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Post by 90GTVert on Oct 17, 2011 16:36:16 GMT -5
Just for the heck of it, you could try holding your hand firmly over the inlet of the carb when attempting to start it. I've had times when I can't get them to pick up fuel and I do that and it seems to give the carb a jump start. Might do nothing at all for you, but it only takes a minute and you'll be able to feel if your engine is creating good vacuum while you do it.
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Post by scootin on Oct 17, 2011 19:13:54 GMT -5
I just got back from getting a new battery.
I have an aftermarket foam filter. I will try the hand thing.
I'll let you know how it goes.
Thanks
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Post by scootin on Oct 17, 2011 20:52:32 GMT -5
I did a compression test for the heck of it. I got 150psi. What should I have?
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Post by 90GTVert on Oct 17, 2011 21:08:34 GMT -5
Not sure what they want out of that kit, but that's more than enough to start.
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Post by stepthrutuner on Oct 17, 2011 22:12:22 GMT -5
What kind of enricher (choke, in the vernacular) do you have? Auto or manual?
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Post by scootin on Oct 17, 2011 22:30:37 GMT -5
Manual choke. Push the little lever on the handle and in comes back up.
Should I be holding it down?
I'm getting fuel to the carb. I cleaned it again and made sure that the jets were clear. the bowl was full when I opened it. Float looked fine.
It will start with ethanol but then dies. Nothing without it.
I made a 5mm spacer for the reed cage out of cork gasket material. Do you think that it is sucking air through there or something? Would that cause it not to start?
Thanks, guys!
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