A guy wants to swap a Freshly rebuilt wr400 99 model with a high compression piston for my 1990 dr350


I rode the bike and is great, very smooth and nice power delivery 


It isn't in best shape tho


That isn't my reason for the topic tho how ever this is... I'm 65kg and I can start it, Nor could he so we tow started it, is there a tequnique for starting these beasts is question 1 and number two is do I have to use premuim petrol instead of normal unleaded to prevent the motor detonating from high comp piston... Will it blow the bottom up anyway??



Any advice would be muchly appreciated because i have to make my mind up within 5 days!


Cheers toby

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