How Did You Break The Twins In???

Personally I acted in similar vein to Cloggsy. Being from an Engineering background I could never pacify my mind that thrashing any kind of machine from the off was good practice.

Originally Posted by Cronos

Gave 'em a good thrashing and then rode the hell out of them.

Took it gentle on the SV though!

Beat me to this answer.

I pretty much followed embee's advice in this topic http://forums.sv650.org/viewtopic.ph...136&highlight=
the bike is only just run in, so can't comment on the success, but no problems as yet.

Originally Posted by Carsick

I pretty much followed embee's advice in this topic http://forums.sv650.org/viewtopic.ph...136&highlight=
the bike is only just run in, so can't comment on the success, but no problems as yet.

Unfortunately that link you gave goes to a dead end...sorry

I can't seem to find the topic anymore. Oh well, in another thread embee uttered these words "proper means a process of progressively increasing speed and load over a reasonable time" and they're pretty much the principlal I work on.

Originally Posted by Carsick

I can't seem to find the topic anymore. Oh well, in another thread embee uttered these words "proper means a process of progressively increasing speed and load over a reasonable time" and they're pretty much the principlal I work on.

Ergo, as much as you'd like to belive that stupid website, dont thrash the nuts off a new engine right away

Originally Posted by Flamin_Squirrel

Ergo, as much as you'd like to belive that stupid website, dont thrash the nuts off a new engine right away

But he doesn't say thrash the nuts off it. Far from it if you read it carefully. What he proposes is a systematic break-in of the engine that is simply contrary to the manufacturer's instructions. Scientifically it seems to make a lot of sense, particularly the bit where he says it's vital for the oil to be changed after the first twenty miles - stupid?I don't think so. Alternative thinking? Yes.

I do find it frustrating that there seems to be this knee-jerk and reactionary attitude rather than a logical appraisal of what's actually being said.

At the end of the day it's your bike, so each person has to make their own (preferably well considered) decision.


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Originally Posted by jonboy

But he doesn't say thrash the nuts off it. Far from it if you read it carefully. What he proposes is a systematic break-in of the engine that is simply contrary to the manufacturer's instructions. Scientifically it seems to make a lot of sense, particularly the bit where he says it's vital for the oil to be changed after the first twenty miles - stupid?I don't think so. Alternative thinking? Yes.

I do find it frustrating that there seems to be this knee-jerk and reactionary attitude rather than a logical appraisal of what's actually being said.

At the end of the day it's your bike, so each person has to make their own (preferably well considered) decision.


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Not knee-jerk, far from it. That site is the only place I've seen that advocates using the engine hard early on. I'm happy to be proven wrong if other reliable sources are available. Call me cynical but I dont trust one random persons personal site on the internet.

It's not like im ignorant about all things mechanical either - I'm an engineer (although in a different field) after all. One universal thing I've learnt however, that a little knowledge is a dangerous thing. Something might seem logical, but unless you understand every last process thats going on there might be something else more important that you've failed to consider. And with something as incredably complex like an engine, its not hard to overlook something.

Suzuki have acknowledged this and are looking into it:

My race SV650K3 straight from the crate, full M4 system and fueling remap, thrashed from day one, 71.9BHP SAE. Valve clearance check normal, no oil used, engine inspection fine.

Husbands Race SV of same spec except run in gently for 400 miles, 65bhp SAE tight as an ****, poss glazed bores.

Suzuki explained twins are designed to Rev and are looking into it.

Food for thought eh.

Originally Posted by SV650Racer

Suzuki have acknowledged this and are looking into it:

My race SV650K3 straight from the crate, full M4 system and fueling remap, thrashed from day one, 71.9BHP SAE. Valve clearance check normal, no oil used, engine inspection fine.

Husbands Race SV of same spec except run in gently for 400 miles, 65bhp SAE tight as an ****, poss glazed bores.

Suzuki explained twins are designed to Rev and are looking into it.

Food for thought eh.

So, what do you recomend as the break in procedure for your customers?