Hello!
Well Quiet True....The 1000cc Is Quiet Underpowered And Just Dies.....!!
I Have 92 Model Sunny JX And I Swapped It With its 1.5L Engine......Now I Am Happy.......!!
On 1000cc.....True That It Won't Work Any Good.......!! On CNG...Just Don't Ever Think Of Doing It So....!! Swapping With 1.5L Engine Is The Solution....!!
Regards