DT125R ARCHIVE

yamahadt125 · DTR Senior Member

running in my dt best way to do it?

Calum122 · Guru

Personally I just ride it softly for 300 miles on semi-synthetic grade oils.

But the majority on here disagree and I have no PROOF to say otherwise. Although I do have a Polini manual that says how to run a cylinder in.

Most here say three heat cycles is more that enough.

I go by what this manual says but that's just me. I don't think it really matters whether people disagree. I'd rather go on the safe side anyway.

Energized · DTR Legend

Warm your bike up well before each ride (duh), use a good quality oil and stick to it and just take it easy for 500 miles.

Stay out of power band and just cruise around, fast gear changes, don't labour the throttle too much, just open her up gradually over every 100 miles or so until you get to the 500 mark. Then you can start to open her up fully.

Fin.

-- Edited by Energized on Tuesday 28th of January 2014 07:19:21 PM

Nathlaad · DTR Legend

flat out

yamahadt125 · DTR Senior Member

So if my bike has full oil tank and i don't no what it is its green what would you do change it or use its

Energized · DTR Legend

Hahaaa yeah or if in doubt just fooking pin that throttle back and full bore it.

It's worked well for Nathy and his bikes, never had a rebuild in his life! Hehe wink

-- Edited by Energized on Tuesday 28th of January 2014 07:27:30 PM

Energized · DTR Legend

If you've already topped your tank up full then just use that oil mate and stick to it if it's good stuff?

I've mixed oils in the past, but that's when i've been lower than an 1/8 of a tank of oil, so no real biggie if there's a small amount.

yamahadt125 · DTR Senior Member

when i got my bike tank was full oil tank if over half should i take some out to low mark and refill with castrol oil instead or using stuff which could be cheap **** what would you do change? just wondering

MDK · DTR Legend

Energized wrote:

It's worked well for Nathy and his bikes, never had a rebuild in his life! Hehe

-- Edited by Energized on Tuesday 28th of January 2014 07:27:30 PM

yeah thats cus they just take em streight to scrap yard when he.s done wid em . like worn out penicls

AndyYam · Guru

yamahadt125 wrote:
So if my bike has full oil tank and i don't no what it is its green what would you do change it or use its

We've covered this... why are you asking the same questions and wasting peoples time? People are trying to help, but it does get annoying when you ignore it. empty it and buy good quality.

As for running in I have to doubt that you'll take any notice to what we say at all but here we go.......its about not putting the enging under too much load. Keepin the revs changing and keeping the gears changing. Dont go full throttle. Dont sit at a constant speed for ages ( ie on dual carriage ways). just nip around hanging gears and taking it easy for 500 miles. Always warm it up before you ride it. Start it on choke if needed and turn choke off straight away. let it warm up with gently revving until the exhaust gets hot before riding.

yamahayz125 · DTR Senior Member

+1 ON ANDY SAID BUT DONT USE GOOOD OILS THATS WRONG USE A MINREAL GRADE OIL TO RUN THE ENGINE IN CASTROL DO A GOOD 1

Luke · Guru

I just did three heat cycles (hot then let it cool then warm it up), took it easy for 100 miles letting it rev freely avoiding high load on the engine (i.e going up hill in a high gear) then just pinned it everywhere. The longer you warm it up the better each ride. I left mine ticking over for 5-10mins put gear on then went out took it easy for a mile or so, then full rev.

yamahadt125 · DTR Senior Member

i was going to put this in seen on google people use it they say its top stuff ? SILKOLENE COMP 2 PRE MIX 2 STROKE OIL 1 LITRE

COMP 2 PREMIX 1 Ltr

Synthetic ester based 2-Stroke engine oil, with Electrosyntec Technology, for competition off road motorcycles. Contains a unique, ash-less, synthetic blend for motocross, enduro and trials machines that require a tank mix oil. Ideal for use in engines that are used seasonally or infrequently. Leaves a coating on all internal surfaces to prevent corrosion. Its additive system and high ester content ensure clean burning and freedom from plug fouling, from low speed to full throttle.

Specifications

API -TC

JASO FB

but it says premix does that mean in tank i can still stick it in the autolube thingy tho ??

dread123 · Moderator

run with mineral oil first for couple hundred miles..then you can switch to semi/full synthetic oil

its been discussed plenty of times on here do a search :p

yamahadt125 · DTR Senior Member

IDEAL FOR 2-STROKE MOTORCYCLES, SCOOTERS, ATVS AND LAWN EQUIPMENT

Castrol® 2T provides superior protection for 2-stroke engines. It is a mineral-based motorcycle oil designed for use in 2-stroke motorcycles, scooters, ATVs and lawn equipment. Castrol 2T is the go-to motor oil for 2-stroke engines.
BENEFITS

Mineral-based 2-stroke motorcycle oil
Recommended for both injection and premix systems
Good overall protection against deposits
Contains a dye-mixing reminder
Premix ratio of up to 50:1 fuel to oil ratio

yamahayz125 · DTR Senior Member

heres the link for mineral oil http://www.ebay.co.uk/itm/1L-Castrol-Act-evo-2T-Oil-2TACTEVO-Act-evo-/281108889764?pt=UK_Vehicle_Oils_Lubricants_Fluids&hash=item41736540a4

yamahadt125 · DTR Senior Member

okay thanks for link ill use that

dread123 · Moderator

yep thats the oil i used :p

yamahadt125 · DTR Senior Member

so use for a 100 miles or so then use racing oil like castrol tts oil or SILKOLENE COMP 2 cause people say its best but all same but okay thanks will order that !!!

dread123 · Moderator

Buy the ltr size and use it all- should be good for about 400-500 mile that -then when its finished use the other oil :p

Nathlaad · DTR Legend

So much easier running in a 4 stroke haha, put ****e oil in it, rag the bangers off it then drop the oil, put some decent oil in, away you go ;)

Luke · Guru

To be honest, the above is over the top IMHO.

As for oil all I did was went down a grade what mopeds use. Mine has been beating strong ever since.

yamahayz125 · DTR Senior Member

it takes 300 mile to run a fresh top end in and 500 mile for a fully rebuilt 1 with 3 heats cycles before you even think about revving it or taking it on the road then your 1st 100 mile dnt go any higher than 5k rpm then 100 to 200 go to 6 to 6.5krpm then 200 to 300 go to 7krpm and 7half k rpm then 300m plus swap your 2t oil and let the little beast roar. as for the 3 heat cycles and just riding it normal is the wrong way to run in a dtr its only for off road bikes as their gona go bang before they get the chance to do 500 mile

AndyYam · Guru

I still dont buy into using a lower quality oil for running in so not gonna reccommend it personally.

yamahayz125 · DTR Senior Member

if you think about it good oil protects things stops wear. were as a mineral oil doesn't as such it helps bed the moving parts in which you want av spoke to a 2 stroke specialist and the first thing he said was dnt use a fully synthetic oil use mineral are part synthetic

Luke · Guru

300 miles to run in a topend. Never heard such rubbish.

Three heat cycles of hot and cold and your rings are bedded in.

Just don't put any high load on the engine.

Mine started first kick every time. It was bullet proof, all I did was three heat cycles no high load on the engine for 100 miles and then pinned it everywhere. The key is in your warm up procedure.

Each to their own, I guess. But personally I think you're all going over the top with running in.

Also don't buy that Mineral oil, just go down one grade to that low smoke stuff moped oil. All I did. My engine was rebuilt by Norfe and is still beating stronger than ever, some 1,000-2,000 miles later.... yawn

-- Edited by Boxing on Saturday 1st of February 2014 10:05:54 AM

yamahayz125 · DTR Senior Member

Honestly boxing u dont half talk some ****tt theirs no way on gods earth that 3 heat cycles bed the rings in to the bore av ran 4 engines in now and it takes more than a 100 miles to run a top end in

Energized · DTR Legend

3 heat cycles will bed the rings in of a DT engine? Hahahahaha! biggrin

Nathlaad · DTR Legend

Enny loves a 3 cycle engine run in

Energized · DTR Legend

Jew know you do too baby boy ;) xoxo