KDXRIDER.NET

so i finisihed rebuilding the rear shock and I'm up to now doing a top end rebuild and servicing the KIPS and replacing with ( never been done)
cyclepedia has been really good but....taking off the exhaust valve operating rod retaining screw using a #2 Phillips head screwdriver i a bug hurdle
It is on there tight!! tried using a#2 and also a #2 impact screwdriver but it is starting to round. Any ideas? heat? PB blaster? j

JIS friendly screwdriver?

Vessel Tools Impacta

I had to use an impact screwdriver w/ hammer to get mine off. you have to be careful though not to hit it TOO HARD and crack the motor, that would suck. I bought a couple brand new screws to re-install. I tried not to overtighten it when I reinstalled it and used some blue loc-tite. it's just a bitch.

Just tried the JIS. No go. I'm a little worried here. I'll try the IMpa t tomorrow morning again. Just hope I don't crack it. Ughhh. So close

penetrating oil and heat

Yup. Letting it soak overnight. Let's see

For others in the future, check out the Impacta (yes, with an A) line from Vessel.

Heat and oil should help on this.

what bike is this for? I'm in the middle of rebuilding my top end and don't remember a phillips head bolt anywhere.

These pics show the 89-94 KDX200 E-Series

Does that screw have a dimple on the head?

I don't remember a dimple on the Phillips head screw

I used heat and penetrating oil a number of times. Each time I heated and oiled it, I'd give it a sharp impact with a small hammer to help break it free from the gunk.