Got this “100cc” engine kit on Amazon. Completed build and couldn’t get it to start. Carb that came with the kit was damaged when I got it so I installed the one shown above with auto choke. That did not fix the problem. Looking for any advice on what to try. I am new to motors and new to this forum. Here’s what I’ve done so far: Ensure fuel ratio 16:1, check for good spark, check throttle working, messed with idle adjuster, gapped magneto loop, checked direction of magnet, tried riding at various speeds and combinations of choke / throttle. When I try to start it I don’t even hear a single pop. Don’t have the air filter on. Any ideas what I could be missing?
Has never started
- Thread starter roadbike
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Got this “100cc” engine kit on Amazon. Completed build and couldn’t get it to start. Carb that came with the kit was damaged when I got it so I installed the one shown above with auto choke. That did not fix the problem. Looking for any advice on what to try. I am new to motors and new to this forum. Here’s what I’ve done so far: Ensure fuel ratio 16:1, check for good spark, check throttle working, messed with idle adjuster, gapped magneto loop, checked direction of magnet, tried riding at various speeds and combinations of choke / throttle. When I try to start it I don’t even hear a single pop. Don’t have the air filter on. Any ideas what I could be missing?
Wyvern
Well-Known Member
How old is your fuel mix? is your plug getting wet with start attempts?
Not familiar with that carb, but I do not trust automatic anything.
First few things I would check.
#1- put brand new fuel in (20:1), drain the bowl of old fuel.
#2- check for even gap at magneto
#3- check to see if your magneto wheel is keyed and tight.
Whitewill1412
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What was wrong with the kit carb? If it is usable I would use it over that other carb and if it's not usable then get a bofeng on Amazon. Definitely get rid of the junk Chinese plug. Most people on the forum use an ngk br6hs plug
Whitewill1412
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I don't know how you can ride with those handlebars set up like that
Whitewill1412
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Are all your nuts and bolts tight? Is your head torqued down properly? Sparkplug tight? Do you have good compression?
It’s a bit sketchy but I thought it would be cool
meridianPeteJ
Active Member
meridianPeteJ
Active Member
I couldn't find the one I was looking for but he makes that guy look like a beginner but could be the same guy.That's nothing
Back in 1976 I used to ride my 27" Ten Speed on trails like that
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