The RG seized

[Coyote]

Trying to keep up with my mates on their faster bikes, I was ringing it's neck at 140k (so I had no hope keeping up) and after 5 minutes it couldn't handle it much longer and froze solid. I pulled in the clutch quick enough so I didn't skid the whole way.

Damned shame. I was getting a new bike end of this week, that's as long as the RG had to last me. Murphey's law huh? And I had planned to race it so if it did last me untill then it would've seized on the track anyway. Going to get to work late after school this week.

Think the big end went. The bearings would've been getting old. I've got the second RG's motor to put in, I should be able to get racing on that. Don't have a motor for that bike now... anyone got a 450 MX engine lying around?

[Donor]

Trying to keep up with my mates on their faster bikes, I was ringing it's neck at 140k (so I had no hope keeping up) and after 5 minutes it couldn't handle it much longer and froze solid. I pulled in the clutch quick enough so I didn't skid the whole way.

Bugger. Seized at 140 on the road.

My heart bleeds for you.

No really, it does...

[Wasp]

bugger Daniel, just curious do you mean you were getting a big bike at the end of the week?

[Mr. Peanut]

How many Km on it, and what oil were you using?

[Coyote]

Bugger. Seized at 140 on the road.

My heart bleeds for you.

No really, it does...
It bleeds because gunning it is so slow?

It was stupid trying to keep up with hoons, I know that

How many Km on it, and what oil were you using?
Cheap stuff from supercheap, it has a bit over 40000kms, had piston and ring done 8000kms ago

[Coyote]

bugger Daniel, just curious do you mean you were getting a big bike at the end of the week?
http://www.trademe.co.nz/Trade-Me-Motors/Motorbikes/Motorbikes/Sports/auction-100311934.htm?p=6

[merv]

Usually a 2 stroke locks up (nips up as they say - seizes of a sort) but as soon as it cools down you can usually fire it up again and away it goes. So if yours isn't doing that then something really serious has happened.

[Coyote]

Usually a 2 stroke locks up (nips up as they say - seizes of a sort) but as soon as it cools down you can usually fire it up again and away it goes. So if yours isn't doing that then something really serious has happened.
Yeah, one of the guys that works at Wellington Motorcycles stopped by (he was out for a ride) to check if I was ok. He told me that. The bike had been sitting for about half an hour when he got there so he thought it hadn't heat seized

I just double checked, the kick start is still solid

[Wasp]

thats one hot vfr!

[Coyote]

thats one hot vfr!
gamgee's old project. As soon as I saw it on Trademe I got it, didn't want to miss out on this one

Once the payment to safetrader clears the bike will be sent over. Hopefully get it next week, hopefully

[FruitLooPs]

Might've dropped a powervalve into the cylinder. I know my RG nearly did that at 40,000kms had to get 2 new powervalves. Take the head off and have a looksie.

And now one of those new OEM ones is stuffed, about 4,000kms on. I think the ports in the barrel for mine were too loose and allowed excess vibration in the valves. Been repaired but still annoying. :gob:


Supercheap oil can't have helped your chances though mate. Regular checks of the powervalves is a good idea for RG's i'm thinking. :yes:

[Coyote]

Might've dropped a powervalve into the cylinder. I know my RG nearly did that at 40,000kms had to get 2 new powervalves. Take the head off and have a looksie.

And now one of those new OEM ones is stuffed, about 4,000kms on. I think the ports in the barrel for mine were too loose and allowed excess vibration in the valves. Been repaired but still annoying. :gob:


Supercheap oil can't have helped your chances though mate. Regular checks of the powervalves is a good idea for RG's i'm thinking. :yes:
I had been meaning to check the powervalves. But I don't think it was them. I would expect the crank would still turn over and you'd hear the powervalves tapping around inside the cylinder. Plus the engine just bogged down, there was no metal hitting metal really hard noise like a powervalve hitting a piston

[Coyote]

Supercheap oil can't have helped your chances though mate. Regular checks of the powervalves is a good idea for RG's i'm thinking. :yes:
And with the amount of k's I do the top oil would've cost way too much

[quallman1234]

Was that you at the lights today, going on to the silverstream bridge?
Number 143 or something on the back of it?

Buggered btw! oh well u have a spare rg dont u?

[xwhatsit]

Oh that's shit.

On the other hand, spare motor, and a single cylinder MX motor would be fantastic in that other frame :D

And! you got a VFR! Shit, you said you'd got a 400cc bike, and you wrote `Nighthawk' in your profile, I thought you'd gone and got a CB400N -- was wondering why until I read this. Congrats!

[riffer]

Bugger about the RG Daniel. Still, it means that you can have one good one now.

And that NC30 looks sweet!

[dogsnbikes]

what a bugger and didnt you have your helmet taken not long ago ?

Not having much luck are you

[pritch]

And with the amount of k's I do the top oil would've cost way too much

In all of the stuff I see in the Brit bike mags about high performance two strokes: RG, NS, RS, etc(?), they always say to use only the most expensive oils.

[Coyote]

In all of the stuff I see in the Brit bike mags about high performance two strokes: RG, NS, RS, etc(?), they always say to use only the most expensive oils.
Despite RG150s being used in streetstock, they're not high performance machines. They're simply commuters

[Coyote]

Was that you at the lights today, going on to the silverstream bridge?
Number 143 or something on the back of it?

Buggered btw! oh well u have a spare rg dont u?
Haha, yes i was. And that must be you on the trail bike, looked pretty cool

Number 132

[Coyote]

Oh that's shit.

On the other hand, spare motor, and a single cylinder MX motor would be fantastic in that other frame :D

And! you got a VFR! Shit, you said you'd got a 400cc bike, and you wrote `Nighthawk' in your profile, I thought you'd gone and got a CB400N -- was wondering why until I read this. Congrats!
RG100 and I had been discussing a while back about getting a 450 MX engine and putting it in my RG. All my money will be going towards paying off the VFR though

I thought Nighthawk would be a fitting name, just like how I called the RG Purple Fury. Then again the Nighthawk is a squarish looking jet and the VFR is pretty curvy

[Coyote]

what a bugger and didnt you have your helmet taken not long ago ?

Not having much luck are you
Indeed. And I might've not got the shipping addresses to biketranz in time (the truck goes to pick up all the bikes tomorrow, not sure if they read their emails before then). I might have to take my crappy BMX to school for another week. I already had some girls laugh at me on it on the way to work and it's starting to creak and I expect it to break in half

[Kickaha]

And with the amount of k's I do the top oil would've cost way too much

Oil is cheaper than a engine

[Coyote]

Bugger about the RG Daniel. Still, it means that you can have one good one now.

And that NC30 looks sweet!
By one good one you really mean one crappy looking race bike and another bike in peices right?

My plans to build up the second RG to sell and pay off some of the VFR debt have gone out the window. I'll be putting the second bikes engine into this seized RG to get that going. As for the second one, no use trying to fix the seized engine as it's likely to cost around $1500 to repair so I may as well buy a new engine for it. Anyway, an RG engine wouldn't do it's nice looking frame justice :p

And it looks sweet in the photos. Haven't seen it myself, buying blind

[Coyote]

Oil is cheaper than a engine
You're kidding?

Only my brother's and Dad's bikes get the finest oil. Dad pays $60 a litre for the stuff that goes into them. I however have to pay for everything myself on $60 a week cause I get paid less than minimum wage. Considering I use about half a litre of oil a week, paying for top oil will mean I can't pay for petrol and there really isn't any point in getting oil but not petrol

Plus it's just as likely to fuck up with the nice stuff when you take Murphey's Law into account

[geoffm]

Despite RG150s being used in streetstock, they're not high performance machines. They're simply commuters

Not quite. As I recall they are good for 28hp / 150cc or 186 hp/litre. That is a fairly warm tune.
BTW, my GT250X7 was hot stuff in 1979 with slightly less power from 250cc, and was accused of being a killer machine, able to do 100mph on a learner license, etc.
Geoff

[quallman1234]

Haha, yes i was. And that must be you on the trail bike, looked pretty cool

Number 132

Yip that was me, Hsvboy and Alexthekid pulled up behind me as well if you saw em :).

My batterys poked and i need a new wof for it so i have to get round to it!

a 450Mx engine would be mint as!, would u use it on the road or race it? (F3???), would have to change the gearing tho, how about a 250 2 stroke single MX engine, probably could pick one up rather cheap, it would have a mean as power band!

[xwhatsit]

RG100 and I had been discussing a while back about getting a 450 MX engine and putting it in my RG. All my money will be going towards paying off the VFR though

I thought Nighthawk would be a fitting name, just like how I called the RG Purple Fury. Then again the Nighthawk is a squarish looking jet and the VFR is pretty curvy

Not to mention there's already a Honda called the Nighthawk... not exactly a motorcycle to set the world on fire, either. This is the 250cc version:

[Coyote]

Not quite. As I recall they are good for 28hp / 150cc or 186 hp/litre. That is a fairly warm tune.
BTW, my GT250X7 was hot stuff in 1979 with slightly less power from 250cc, and was accused of being a killer machine, able to do 100mph on a learner license, etc.
Geoff
True, still had a fairly high redline. And I used the whole rev range to actually get it moving. So basically I killed my poor RG :(

Yip that was me, Hsvboy and Alexthekid pulled up behind me as well if you saw em :).

My batterys poked and i need a new wof for it so i have to get round to it!

a 450Mx engine would be mint as!, would u use it on the road or race it? (F3???), would have to change the gearing tho, how about a 250 2 stroke single MX engine, probably could pick one up rather cheap, it would have a mean as power band!
I caught a glimpse of them

Probably race it as the rego will die (unless you can ut it on hold forever but I have my doubts). And I had thought of a 2 stroke, just a 450 would be cooler (unless I managed to buy a 500 2 stroke). However if I find a cheap 250 and I have the cash at the time I'll go for it

Not to mention there's already a Honda called the Nighthawk... not exactly a motorcycle to set the world on fire, either. This is the 250cc version:
Mmmm... doesn't really strike fear does it? I haven't got the bike yet so I've got plenty of time to think of something else

[ZeroIndex]

That's a bit odd... was the speedo saying 140? They get up to 180km/h @ 12,000RPM, but they are only doing 150km/h (very badly out speedo)... I had mine sitting at redline for about 10 minutes and I didn't have any problems with mine... what oil were you using? please don't say 'any old service station 2t oil'... I used to run mine on either R2 or TTS

[Kickaha]

You're kidding?

No I'm not good oil saves you money in the long run


Plus it's just as likely to fuck up with the nice stuff when you take Murphey's Law into account

In over 20 years of running two stokes (on and off ) and some a lot higher performance than a RG I haven't ever had a lubrication related seize using good oil

I've had a RG150 indicating 180kmh for reasonable amount of time with no problems, in fact it got thrashed for about a 200km round trip with no problems at all, so sitting on a indicated 140 for extended periods shouldn't be any problem at all

[ZeroIndex]

No I'm not good oil saves you money in the long run



In over 20 years of running two stokes (on and off ) and some a lot higher performance than a RG I haven't ever had a lubrication related seize using good oil

I've had a RG150 indicating 180kmh for reasonable amount of time with no problems, in fact it got thrashed for about a 200km round trip with no problems at all, so sitting on a indicated 140 for extended periods shouldn't be any problem at all

I was quite happy with the indicated 180km/h until F00T pulled up next to me, pointed at his speedo and signed out 1-5-0, then pulled a 2nd gear power wheelie into the distance

[Coyote]

That's a bit odd... was the speedo saying 140? They get up to 180km/h @ 12,000RPM, but they are only doing 150km/h (very badly out speedo)... I had mine sitting at redline for about 10 minutes and I didn't have any problems with mine... what oil were you using? please don't say 'any old service station 2t oil'... I used to run mine on either R2 or TTS
I was running it at an indicated 170-175 but backed off waiting for the other lane to be empty so I could pass a car, then when I gunned it to pass the car it bogged down and the rear locked up. I would've been doing about 120-140

I do use cheaper stuff, Valvoline 'race' oil from Supercheap, $10 for the litre. Although for the last few months I was running it on some nicer Castrol semi-synthetic stuff that I got with the second RG (Jamezo gave me the lot since he didn't need it). Since then I had only used a litre and a half of the 'race' oil

On the great kiwibiker ride I had it at redline doing 150kph real speed and that was for a good hour. Didn't miss a beat and sounded great. I still do think it was a bottom end bearing finally dying, it does have 40,000kms on it

[Coyote]

No I'm not good oil saves you money in the long run

In over 20 years of running two stokes (on and off ) and some a lot higher performance than a RG I haven't ever had a lubrication related seize using good oil

I've had a RG150 indicating 180kmh for reasonable amount of time with no problems, in fact it got thrashed for about a 200km round trip with no problems at all, so sitting on a indicated 140 for extended periods shouldn't be any problem at all
Yeah, still my budget didn't allow for much nicer stuff. I could've probably moved up to semi-synthetic at least

See above, I had run the RG for an extended amount of time before with no problem. That's why I gunned it this time thinking it was still capable of it (and to try keep up with my mates that have twice [and one guy with 4 times] the horsepower I had).

Something good has come out of this though. Being forced to take my bmx to school has made me loose weight :p

[Ivan]

Yo Dan,

SImple advice on any engine Do not ring its neck out flat tack for 5 minutes you will have big bang,

And with a 4 stroke youl valve bounce it drop a valveinto the cylinder and fuck your piston barrels and heads

[JayRacer37]

I was running it at an indicated 170-175 but backed off waiting for the other lane to be empty so I could pass a car, then when I gunned it to pass the car it bogged down and the rear locked up. I would've been doing about 120-140


Sounds like you lean seized it....roll back to half throttle at lots revs, not much gas but still plenty of air flowing into there....NIP!!
Do'h tough luck man, better qual oil is ALWAYS a good idea....bet your getting sick of hear that thou huh? :dodge:
Ah well, it was only a 150....roll bowl and arsehole them - they love it really!!:yes:

[JayRacer37]

Yo Dan,

SImple advice on any engine Do not ring its neck out flat tack for 5 minutes you will have big bang,

And with a 4 stroke youl valve bounce it drop a valve into the cylinder and fuck your piston barrels and heads

Dude, have you never watched and listened to a 600 race???
Rev limiters are there so they WON'T go above what a four-stroke engine can handle.
your more likely to knacker a 4-str by either; 1) revving it in neutral and flinging motor speed past rev limiter, throwing the valves into the pistons, or 2) backshifting and letting the clutch out so the back-torque spins the motor past what its cabable of - throwing valves into the pistons..... Thats why Ducati's Desmo system is so cool!! You don't have a spring that can only go so fast, you have a manual valve return.....revs are now limited by what the pistons and conrods can do :)

I hope i'm not talking too much shit - someone give me a bike to thrash!!
I'm just a dumb rider really...

[Coyote]

Yo Dan,

SImple advice on any engine Do not ring its neck out flat tack for 5 minutes you will have big bang,

And with a 4 stroke youl valve bounce it drop a valveinto the cylinder and fuck your piston barrels and heads
This time was about 5 minutesof thrashing but I had previously gotten away with about half an hour at full throttle (on the KB ride). I didn't think much of it revving it this time

And that doesn't sound too good

[Coyote]

Sounds like you lean seized it....roll back to half throttle at lots revs, not much gas but still plenty of air flowing into there....NIP!!
Do'h tough luck man, better qual oil is ALWAYS a good idea....bet your getting sick of hear that thou huh? :dodge:
Ah well, it was only a 150....roll bowl and arsehole them - they love it really!!:yes:
Gosh, never even heard of that type of seizing

Yes I am getting a bit sick of it, I've already made my excuses and I'm sticking to them :p

At least I have a second engine, should still make it for one or two rounds in streetstock (more likely F3 due to the suspension upgrade)

Dude, have you never watched and listened to a 600 race???
Rev limiters are there so they WON'T go above what a four-stroke engine can handle.
your more likely to knacker a 4-str by either; 1) revving it in neutral and flinging motor speed past rev limiter, throwing the valves into the pistons, or 2) backshifting and letting the clutch out so the back-torque spins the motor past what its cabable of - throwing valves into the pistons..... Thats why Ducati's Desmo system is so cool!! You don't have a spring that can only go so fast, you have a manual valve return.....revs are now limited by what the pistons and conrods can do :)

I hope i'm not talking too much shit - someone give me a bike to thrash!!
I'm just a dumb rider really...
Ooo, did some of those things accidentally on my CBR once. Tacho went straight past 20,000 and off the readings. Made a hell of a sound

When the RG is back running you can have a good ol' thrash on that. And I'm probably dumber than the lot of you guys on this site put together and then some :bleh:

Off to catch the school bus!