Recent content by elemetal

I've had it suggested to use oven cleaner....haven't tried it but it makes sense.

There must be some changing theory about how that little shroud works. A friend and I have looked at a variety of the PWK carbs from the earlier screw cap/straight PWK to the 2 screw, PWK AS and there is variation. At first (mid 90's) the shroud was 5mm, then they went to 3 mm, then back to...

Altitude will have a large effect on the PSI reading of the gauge. I got 185 at sea level and 145 in New Mexico at about 3500. If you have raised your exhaust port to allow more RPM (more hp up top) you'll naturally get a lower PSI reading (less swept volume). Also remember the charge that...

I've got mine mounted like rbm33 with no problems. I like the vantage point (you still see the bars, hands and fender) more than if you chest mount is and it stays out of the way pretty well. I've got a buddy who mounts his upside down under the visor, GPro has a software function to record...

Cool to see you tried it, sorry it was a piston waste. When you look at it you can't help but think what those cuts are doing to the squish and the controlled burn. I'd think you'd want to keep the cuts steep and small so they have less squish and compression effect but you'd likely get more...

I have seen this exact same failure point on 88-91 KTM's. The upper and lower shock pivot were not directly over eachother (off by 1/4" or so) but the lower pivot was only rotational (not like a Hiem joint). In MX or any other endeavor that would cause the rear to compress almost completely...

All the PWK's I've had apart had that o-ring at the air screw. I'd put one in for sure, it'll help with the oil coming out and any dirt/air going in. Pretty tiny o-ring though.

When our 4 yr old was born she was allergic to certain fats and proteins (went away after a year or so), so Mom couldn't eat any of certain things. Those things happened to be pretty major: no eggs, dairy or soy. If you look at the labels of just about anything (bread, crackers, any pre-made...

Andrew Cooksey at cookseycranks in TX does good work too; don't have his contact info but you can google him.

Seems as if GMP is on the right track, it's not about the disengagement but the plates sticking together when not loaded. Look for something that makes them not want to separate(burrs, ridges, maybe too smooth a finish on the steels) rather than more clutch action. I'd suggest a different oil...

I'm about the same weight as you with dirt gear (95 kilos nekkid) and haven't resprung my trials bike (280 txt). With trials you need a very soft suspension so it's not as important as it is with a dirtbike. It also depends on what your skill level is, the lower the skill the less you need the...

Sorry for the confusion, most of the mains I have done use a roller on both sides rather than the GG way (which I hopefully won't have to do for a while). Disregard my info please.

Typically you have to adjust axial (long dimension on the crank) play by using small shims between the crank lobes and inner race. The manual should give a number for the allowed axial float (.3-.5mm I'm guessing) and you have to account for the center case gasket in there too. A good way to...

In the US they are required to ride in USFS land (BLM) and in just about every OHV area; fire protection. Only go without at a private MX track; those bikes are set up to hit the power different so a slightly shorter silencer can give slightly more top end/over rev. Try to get the sparky to...

FYI they just passed a law here in CA that starting in 2012 aftermarket pipe on motorcyles are no longer allowed....that's right, you have to have an OEM pipe on it or one with a CARB (Ca. Air Review Board) tag on it, dirt and street. This is retalliation for all the straight cut pipes on...