Big Bore Electric Start Problem

Hello guys, I'm new here and I only speak english so please help me if you can. My engine mods are:

UMA 62mm Block
30mm Carb with bigger jettings (not sure what size)
BRT CDI
Vixion Stage 2 Cams
AHM Pipe (newest model)

The problem now is that my bore is so big that it's hard to fire up using the electric starter so I have to frequently kick start but even that's a pain... My mechanics say that it's b/c I'm in high compression but I don't know what this means. Someone please explain to me what...

Big Bore Electric Start Problem

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