86 250r timing on a +4 stroker

[ruffridaz07]

Ive gota 86 250r with 87 stroker crank 86 68mm piston air Stryker carb esr reed cage was wondering if I need to advance or retard my timing

[yaegerb]

Stock ignition? If so you can't advance unless you have an aftermarket plate or are running an upgraded ignition.

[ruffridaz07]

Got an rpm adjustable

[yaegerb]

I assume you have the +4 adjustable. what is your current compression? You could toy with it +/- 2 degrees but unless you are running really high compression and are retarding for longevity I can't think of any reason why you would want to mess with it.

[ruffridaz07]

210 psi. Falls on its face 1/2 - 3/4 throttle

[250rRoostmaster]

How's your jetting?

[yaegerb]

x2, I would ensure your jetting is spot on first.

[maddog1927]

+4ish degree.

The one I use:

http://www.ebay.com/itm/Honda-ATC-TRX-250R-250-R-Billet-Timing-Advancer-/221533644933?hash=item33946f2885&vxp=mtr