Son of the return of exup problems

[Annaz]

Some of you may remember the topic from the old site,

anyway, I have a knackered exup servo on my Spondon R1 which makes the rev counter do the twist (like we did last summer) as a way of self diagnosis. So the question is; How do I make it fookin stop?

I was thinking of replacing the exhaust with a nice stainless item.

After reading the article in this months mag about Sandy Lane and the Thunderace, now with no exup and not down on power but with the servo still connected, I'm thinking Mmm could be an idea. So is there no way of getting rid of the servo (saving weight) and having a sane revcounter or is the only way forward to replace the confounded thing?

Thanks to Yoshi and Uggiebear for their help last time by the way

[Mark/Foggy]

Seem to remember that you can get resistor based friggers from the States. Distant memory though.

[MonkeyJim]

From http://pbmagforum.co.uk/index.php?showtopic=163

don't know about the Micron system particularly, but I fitted an akrapovic full system to my 99 R1 earlier this year.

Picked it up off ebay for just a few hundred quid. Bloody marvellous I tell thee!

I fitted it - piece of piss, though you do need to remove the rad - then took it to the excellent Chris at Road & Track dyno in Aylesbury. recommended, top bloke.

He re-jetted along with a K&N air filter: Peak power went up from about 135 to 141 bhp at the rear wheel, with an increase of about 15 hosses in the midrange. which was nice.

downside was it's now 'a bit fluffy' below 4k. Not really a problem, and the benefits far outweigh this. Oh, and I should add it sounds bloody amazing!

Couldn't tell you exactly what jets, needles etc he used. he gave me the option of close to or over 150 at the rear wheel but that would mean losing a chunk of midrange. As my riding is a mixture of road & track days, I didn't want it all to be at the top end.

Added benefits: the standard downpipes weigh a ton and there's a huge weight saving to be had. I removed the exup cables but left the exup servo-motor in place - you don't need to cable tie-it, it's on a little bracket already. if you remove the exup motor, the tacho will register a fault code every few seconds.

There are some 'servo replacements' available that fool the ignition system, if you really must remove the motor.

http://www.inter-bike.co.uk/inter-bikeshop...?categoryid=594

I got a road legal race can with removable baffle with mine, specifically for MOT-time and noise restricted trackdays.

Hope that helps!

the bit in bold is what you need if the exup servo motor is causing the problem. or you could try getting an exup servo off ebay

[Annaz]

the bit in bold is what you need if the exup servo motor is causing the problem. or you could try getting an exup servo off ebay

[Coose]

I know of a circuit that you could make up yourself for a few quid, but I thought about this when I put an R1 in my old kitcar and questioned the reliability against a Yamaha servo. I ended up buying a servo off eSkip for £20 which cured the fault code.....

[Annaz]

Cheers Coose

I've said this before but I love the low torque and wheelie capabilities of the exup system so will probably go down the new servo route, I just can't be bothered with all the hassle of re-jets n'all that.

Not to mention the expense ( I just got a nasty vets bill) Animals -------Just say NO!