Electric Start In General

Willie1

Active member
Messages
589
Reaction score
152
Location
Newport, Mi
It seems like across the board there are people who want both increased RPM and power AND the convenience of electric start, but given the lack of proper flywheels, can't have that luxury. While it seems that simply fitting a ring gear to a billet flywheel should solve that issue, for some reason no-one seems to be doing that. I wouldn't think that it would be an insurmountable issue to do so - engineering wise, but it seems like there is a large market not being serviced.

OK - "race" engines use billet flywheels - usually removing the recoil unit and use a handheld starter box to start them, using a collet on the crank. Been doing some form of this for decades.

I'm wondering the feasibility of designing a bolt on replacement for the recoil cover with an electric motor built onto it to spin a collet in the same manner, or one attached to the face of the flywheel. It wouldn't affect the integrity of the flywheel and would be controlled the same way a block mounted one would.

Or fit a ring gear to a clutch hub or CVT drive hub and start the engine from the "output" shaft.

Think about it.
 

karl

Well-known member
Messages
2,449
Reaction score
717
Location
North east Ohio
Already exists. Found inside honda eu3000 generators. Part # 28400-ZS9-A04.

Should just bolt on gx200s and predator 212s. And you can still pull start it too.

But without a charging system, electric start is still kinda pointless. Especially if you
put the work in to make your own that replaces the recoil starter, then the battery dies
and you can't pull start it and get stranded.
 

Attachments

  • yup.jpg
    yup.jpg
    1.1 MB · Views: 7

Willie1

Active member
Messages
589
Reaction score
152
Location
Newport, Mi
Nice find on the starter unit. Since I don't actively work on small engines much anymore I lost touch with what is out there.

I guess that what "acceptable" battery life without a charging system would vary by the needs of the person using it and their mindset on how often they want to deal with charging the battery. I've been seeing YouTubers using 12v Milwaukee and Dewalt batteries to start and power karts and such, just swapping fresh batteries in as necessary. Others use a belt driven alternator to satisfy more amperage draws. I guess that just depends on how much time and money someone decides to spend on the project.
 
Top