DT125R ARCHIVE

seancullen · DTR Member

stan stephens stage 3 on 4fu

plebpl · Guru

i think one guy had it done a few years back, and didnt get the results he expected. thats all i can say though mate because i cant remember :)

Cameron · Guru

Heard good things about mick abby, give him a ring and ask him. People on 125ccsb have been getting over 35bhp on the rs125's, don't really see why you couldn't get that out of the yamaha. I do want to get this done at some point, got too much to sort on it atm though lol.

ben350 · Guru

Mick Abbey has had good results with TZR's so should be good with DT's as well, think he also makes TZR pipes to match the tune which might be tricky as no one likes making trail bike pipes coz the shapes a pain.

Think some one had nearly 30bhp from their TZR

Calum122 · Guru

From what I heard from Skellerns at all over the web AVOID Stan Stephens. Stan Seizes is the unfortunate nick name he's acquired. I've been reccomended Mick Abbey so will send it off to him me thinks.

dread123 · Moderator

ummm 3.5yrs too late me thinks lol

Calum122 · Guru

It's just to complete the thread so if someone searches Google and find this page they have a definitive answer.

AndyYam · Guru

Just to add my 2 cents. A stage 3 is a race tune and unless you are stripping and checking the engine regularly then it's not great idea. Stan Stephens offered the 3 different tunes for people who were coming to him to asking for the race tunes that he was doing on the 350 LC's etc. Stage 1 was the road tune which increaed power but kept reliability. then moving towards the full stage 3 race tune.

I wouldnt run a stage 3 tune on the road. It's not worth it in the slightest. The power gain compared with the lack of reliability and regular maintenance needed would be a false economy.

Im not sure who Skellerns are but probably up north somewhere or closer to another well known 2 stroke tuner. There are a few like mick abbey and stan stephens and as expected there is competition between them. Thats there first time I've ever heard of someone call him Stan Seizes and I think us talking about him here is a testament to his work.

I suspect the people who are calling him that are the kind of people who throw money at a bike and expect it to run forever at 12,000 rpm with no oil. If you have work done on your engine to take it away from factory tuning then naturally it will need better care than a factory tuned bike.

Calum122 · Guru

Sorry. Skellerns is the Yamaha dealer near me. The technician there, Rob, is a keen 2 stroke enthusiast owning a TZ250 race bike from which he's done a lot of porting work to himself.

Now i asked whether he would do mine and said no. They're horrible job. So it's not like he slated Stan for personal gain since he gains nothing from it.

AndyYam · Guru

I didnt say he was doing it for personal gain. I said "i suspect" and the reason above. Stan Stephens repuatation is there for a reason and although I'm sure he wouldnt care what a Yamaha "Technician" decided to go around saying to people it's very unprofessional and also untrue. He regularly turns down work and if you read his website, you'll will see that he has cut down his workload dramatically and now only works on the engines he really enjoys which are the Yamaha 250/350 lcs and ypvs 350 an 500's. as well as some dirty rg500's pfftt :P

I personally doubt these rumours would be true of someone who is turning down work, used to own a business at brands hatch, has worked with all the riders he has and also has a section in every issue of Classic Motorcycle Mechanics.

I just don't think it's fair to tell people to avoid someone without having done any research on him, without ever having used his service or knowning the slightest bit about him. I'm sure you wouldnt appreciate it if it were the other way round. When my Stan stephens built 350 ypvs engine seizes I'll let you know though and assume it was all his fault and couldnt be a lack of maintenance or another off the list of reasons for seizures.

yamahayz125 · DTR Senior Member

Stan Seizes lol thats quality that like but what else can u expect from a tuned 2t engine its just like the rs 125 engine its tuned more compared to a dt the rs is lucky to do 10k miles were the dt doe's out from 15k - 25k and some thing like a yz on the road be lucky to do a 500miles

Calum122 · Guru

Yz's will do more than that. Yz's will do hours on a track being obliterated with little or lack of cooling air due to tight tracks and smoky people in front.

I'm not arguing with you. I was discussing a point made. I asked Yamaha where should i send it to and he reccomended Mick abbey over Stans Stephens. That's all. The fact that he's acquired the nick name Stan Seizes is becoming irrelevent now. Only say Yamaha tech because that was who I spoke to. And that was his opinion. I don't need to do research because Rob's spent his life as a mechanic so already knows the subject more than me.

But I agree. It probaby was down to lack of maintenance and highly strung engines.

mr karnage · Guru

Extensive porting only reduces ring life. Hence the reason why the sp engine using two extra small exhaust ports instead of widening the main port further.

If your getting the barrel done get the head done aswell, you want the right squish and if you wanna go further have your head machined to take o rings instead of a gasket.

Seiki · Admin

Stan Steven's stopped working there years ago, waaayyy before this thread was created.

AndyYam · Guru

Calum122 wrote:
Yz's will do more than that. Yz's will do hours on a track being obliterated with little or lack of cooling air due to tight tracks and smoky people in front.

I'm not arguing with you. I was discussing a point made. I asked Yamaha where should i send it to and he reccomended Mick abbey over Stans Stephens. That's all. The fact that he's acquired the nick name Stan Seizes is becoming irrelevent now. Only say Yamaha tech because that was who I spoke to. And that was his opinion. I don't need to do research because Rob's spent his life as a mechanic so already knows the subject more than me.

But I agree. It probaby was down to lack of maintenance and highly strung engines.

Piston changes are reccomended around 30 hours on 125mx 2 strokes. not sure how long that works out in miles though and on track they are gonna be ridden alot harder.

I know Cal it's just the way you put it across was telling people to avoid him based on the word of your local technician. Just seems a bit unfair to post it without any justification for it. I know you're only trying to pass on the advice that you've been given but its still a bit off. The way you used capitals for the word AVOID and "all over the internet" suggests that this nickname is a well known thing and it sounds like some technician in your local yamaha dealer has said it to you and you've taken it as gospel. If your Yamaha dealer employ the same sort of people as mine then id take it with a pinch of salt.

It is ALL irrelevant but only because he doesnt do porting work on dt barrels anyway. If he did still rely on the business as his income, people posting things like that on a forum could be damaging to his business as its the kind of work that relies on word of mouth and reputation. All im saying Cal, is before you slate or even repeat the slating from someone else, think about what repurcussions it could have on them and look it up yourself before you believe it. Just out of curiosity, do you read the Daily Mail?

AndyYam · Guru

Seiki wrote:
Stan Steven's stopped working there years ago, waaayyy before this thread was created.

I know mate. I did say "had" a business at brands.

Seiki · Admin

I pass Stan's and go to Bob Farnham's, he really knows his 2 stroke's although he prefers to work on sports bikes etc

Not sure how much truth there is to it but apparently Stan learnt a lot from him. I heard Stan was good back in the day but didn't get the chance to have any work done by him specifically.

Tbh the business should be renamed I always thought, he himself gets the bad reputation for anything that happens.

Calum122 · Guru

Says it all really Andy, you're wiser than me for sure. I appreciate what you're saying about damaging business and you're right. I should think before I type and thank you. As you said I'm just parting knowledge not spreading rumours. I can more about the forum members than I do about businesses.

But this isn't something I've said without seeing it plastered over the internet first Andy. This was the result of 1 Google search with Stan Stephens as the title name.

http://www.rzrd500.com/500phpBB3/viewtopic.php?f=1&t=1366&sid=7700d402b1e2d5b2443b62300a189f05

General consensus on there is not good.

But that was one site checked a few others and they praise him.

AndyYam · Guru

Seiki wrote:
I pass Stan's and go to Bob Farnham's, he really knows his 2 stroke's although he prefers to work on sports bikes etc

Not sure how much truth there is to it but apparently Stan learnt a lot from him. I heard Stan was good back in the day but didn't get the chance to have any work done by him specifically.

Tbh the business should be renamed I always thought, he himself gets the bad reputation for anything that happens.

I don't think he employs people. thats why the business has its name.

AndyYam · Guru

Calum122 wrote:
Says it all really Andy, you're wiser than me for sure. I appreciate what you're saying about damaging business and you're right. I should think before I type and thank you. As you said I'm just parting knowledge not spreading rumours. I can more about the forum members than I do about businesses.
But this isn't something I've said without seeing it plastered over the internet first Andy. This was the result of 1 Google search with Stan Stephens as the title name.

http://www.rzrd500.com/500phpBB3/viewtopic.php?f=1&t=1366&sid=7700d402b1e2d5b2443b62300a189f05

General consensus on there is not good.

But that was one site checked a few others and they praise him.

To me that site says it all, I'm not trying to be "wiser" or anything I just dont like people being slated without proof. The OP in that thread opens with abuse and merely saying he's "****ed his barrels". Means nothing lol. It's obviously not Stan stephens replying either lol... The someone else starts saying about the different exhaust port heights. read further down and you'll see....

"an old trick for new players<br>try putting the barrels on the cases and then check them with a degree wheel you might find that they open the port at the corect timing as there is a difference between the front and rear barrels when you port them with a degree wheel they do not measure the same distance to top of exhaust but the timing is correct"

Its obviously a few guys who have paid for work that they dont fully understand. These are the V4 rd500 engines its worth bearing in mind.

My stan stephens buillt engine runs beautifully with the standard maintenance that 2 strokes need. All the guys in the local VJMC have nothing but praise for him. Then again they look after their bikes...

Calum122 · Guru

Yeah you're right mate. That's why I'm agreeing with you.

AndyYam · Guru

cool

Energized · DTR Legend

Sigh, you pair......

AndyYam · Guru

Haha you love it E! It's only banter!

Energized · DTR Legend

Hahaha i know, i do really Andyyy Pandy! :')