Hi there,just joined the forum and very impressed with the camaraderie out there. I recently bougth a lovely MC21SP in rothmans and am very pleased with it.

Decided to go for the deristriction with a Kiss unit purchased off ebay, and after fitting noticed the following; electrical burning smell from PGM; no neutral or oil light. Immediately turned off ignition, and on taking a closer look and smell at PGM realised some shorting must of occured inside it.
Checked fuses, ignition fuse blown. Replaced it, removed kiss unit, plugged PGM into loom, turned ignition on. All lights normal again, heard powervalve servo operate. Briefly thougth that I may have got away with it.

On riding,oil light stays on (tank 3/4 full), no power above 4500, no movement of powervalves. Cycling on/off switch,servo 'whizzes' as usual, no movement of valves. PGM makes very quiet buzzing sound.

My thoughts are the kiss unit is defective and I now have a fried PGM hence no powervalve opertion. I have a spare(which I assume works) but have not swapped it yet in case I am making an obvious mistake which someone out there has spotted. Thoughts welcomed. Thanks

Welcome on board Andy!

Doesn't sound so good to me. Pop the plastic cover off the PGM-III and see if you can see any damage. It's usual for the RC Valve side of the PGM to die when it's shorted or the servo or valves are strained, but not so usual for the IGN side to die. (It can happen though.)

I'd personally be inclined to throw the other PGM-III on and try it, but I'm a bit reckless like that! Do the orange/blue wire splice and chuck that KISS box in the bin (or back at the person who sold it to you!) as it sounds like it could be faulty.

Ideally you want to try your suspect PGM-III on another fully functional bike first, so see if symptoms still exist, and then try your new one too.
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Andy.
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Hi Andy,

Thanks for your advice. Took the plunge and stuck on the spare pgm-Hooray-thankfully it works and has restored bike to previous performance!

Will attempt wire splice once I have bought a soldering kit and given myself a crash course in soldering. Is it safe to assume that the bike should be fine on its current jetting? Bike is standard as far as I know and runs beautifully, used on road only.

One last question on the pgm. Is it possible to perform any form of resuscitation on it. Reason I ask is that my brother is a tv studio electronics engineer and is always problem solving and replacing all forms of circuit boards,transistors etc. and has access to all sorts of electronic spares.

Great to have bike working again. Have heard nothing back from the bloke who sold me the dodgy kiss unit. Funny old thing. However, what comes around goes around! Thanks again for your prompt assistance. Regards, Andy

NZHUEY wrote:Is it safe to assume that the bike should be fine on its current jetting? Bike is standard as far as I know and runs beautifully, used on road only.

Assumption is the mother of all fcuk up's, every last one.

As far as jetting goes it's totally safe to assume a totally std NSR is fine on totally std jetting and nothing else, NOTHING!

Though yes, if it has 128 mj's in, is running the power jets and std needles it should be fine with just the wiresplice, it may be OK with a modded airbox, it will almost certainly require rejetting if you swap pipes as well.*


*this is in my experience and based on what I have observed, it is not absolute fact and should not be taken as such.
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