fallenmikethebike wrote:The expansion pipe hasn't acquired a new dent lately has it? Or the exhaust system altered in some manner?
Mike

No new one, just a big one from last year. I'll drop the mk2 one on and try it

knackeredMk1 wrote:I can send you a coil to check if you return it.

PM sent

helisupp wrote:I have not seen you post that the voltage regulator is working correctly. Third time asking.......

Can't see this a being problem, then again, eletrics are not my strong point

ECU back on, - same problem HT lead off, cut a bit off the end and changed the plug cap - same problem Checked the earth on the coil to frame - good but same running problem Video of the sero running http://www.youtube.com/watch?v=0MGL1woqi74&feature=youtu.be video of servo disconneted at half setti...

It's this midrange misfire that's the odd conundrum. Unlikely to be fuel related as the main jet was altered and no discernible difference was apparent. So, it's more than likely one of the following, coil, lead, HT cap, field coils, or pick up coils. The magneto's not been disturbed of late has it...

Some very swift analysis of my ECU by Mike (MTFB) and the ECU is OK (phew, that has saved me a few £££).

I agree with Mark, but replace the reeds anyway. Just to get it straight - 'Is the PV servo still messing around?' Not now. Mike thinks similar to you and the dredded ECU is a possible. I spoke to my engine guy today, told him what I had changed and apart from reeds he said the generator or pick up...

Bought this http://www.ebay.co.uk/itm/111023247521?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649 but not sure now! I have it if its worth fitting, seems like a lot o hassle to fit it with the CRM`s electrics behind the cowl? anyone else used one of those? should I persevere? and modify the bik...

i run denso wr24s in my crm for some reason my crm loves them starts easy never miss fires tryed ngk 8s,9s and it didn't agree....pig to start didn't run as crisp What is the rest of the code for your WR24? FSU4038, ESRU, ESU-4030, FSR? I would be interested in trying an ND plug as I've only ever s...

helisupp wrote:But it ran fine before you rebuilt the bike...............so its not the reeds, too much of a coincidence.

There were signs of a bit of a problem before the rebuild but nothing like it is now

Kev (Stumpy) at LT has suggested the reeds. The one's I have are the origonal one's and are 18 years old. Me thinks inspect them and see if they are worn at the edges.

They look sort of familiar to me. Where are they?

First trail bike up to 250cc and 2nd trail bike (someone on an XR 400 beat me by 4 seconds), 26th overall. Sounds like a good result considering the running problems but dissaponting for me. Still, depeding on how they spilt the trail class, I'm either leading my class, or second. Video of the speci...

Well, I know it is not the power valve sero or the jets. Both changed and the problem is still there so coil next, then maybe the stator (as it is easy to change) then onto the wiring as suggested and last the ECU. LT said £428 for a new one so a repair might be the answer especially as its a tad le...

helisupp wrote:Remember the golden rule:

Only change one thing at a time or you will never know what was wrong.

If jetting was ok before, it is ok now.

Agree on both counts. If its the ECU I'm stuffed as I don't have a spare Mk3, only one off a mk2