ESE's works engine tuner

[kel]

Have just found out that the Suzuki VJ23 cylinder is a T port ( like the older models and also Aprilia RS250) but it has sub ports as well.
This may be an even better choice for sitting on a RG bottom end and sleeving to 50mm.
Anyone got one I can look at.

Ah the last of the RGV's. Recently saw one for sale in NZ at a very resonable price, dont think the owner appreciated what he had.
I have seen cylinder pictures on the net somewhere you could try http://www.rgv250.co.uk/ But why the need for so much exhaust area, the RGV already had a lot of exhaust.

[wobbly]

To get around 38 crank Hp from an RGV100 ( to create mid 30RWHp) the T port needs to be up at 198 duration.
This is governed entirely by the blowdown available when the transfers are in the right place as well.
Having the T port as well as the aux ports may allow the exhaust port to be dropped a few degrees in duration,this then increases the range where the pipe is in resonance,giving a wider spread and no drop in peak power.
I need to measure one up though to see what is possible when it is sleeved back from the 56 bore to 50mm

Edit, its 54 bore,so has a stroke of 54.5 unlike the earlyer engines.

[F5 Dave]

Yeah a mate has one apart at the mo, he's waiting for crank, apparently this Japan quake thing has F'd things up a bit. Its def a T port, don't remember seeing aux ports, but then again we were too busy looking at the broken rod.

I could try get a port rubbing & scan it.

[bucketracer]

I could try get a port rubbing & scan it.

A rubbing and photos would be great if you can get them ............

[wobbly]

While its apart I am more than happy to pay for freight to get it here for a days measuring.
Get your mates Email and I will give him my NZC account number so it cost him no time or money as they will do a pickup.
cheers
wob

[marsheng]

No point in letting your bike rust in the shed, otherwise sell it to me and Ill let it rust in my shed with all the classic buckets Ive collected

He has enough bikes as it is. Best you get on it yourself and come and play with us !!!.

[F5 Dave]

I'll talk to him. Bike is sitting in his kitchen waiting for parts. (bedroom already has a 256 80s GP bike & lounge an RZ500 project).

[koba]

I'll talk to him. Bike is sitting in his kitchen waiting for parts. (bedroom already has a 256 80s GP bike & lounge an RZ500 project).

It has come to my attention that some uncharitable types might label someone indulging in such habits as "an Animal".
These people are fools as it is a clear and definite sign of great taste.

[Kickaha]

(bedroom already has a 256 80s GP bike

poor bastard

[husaberg]

It has come to my attention that some uncharitable types might label someone indulging in such habits as "an Animal".
These people are fools as it is a clear and definite sign of great taste.

I have made a wee start on the old bike refurbisment.
Sorry about the mess it's the maids day off.

[koba]

I have made a wee start on the old bike refurbisment.
Sorry about the mess it's the maids day off.

Nice.
It looks short.
And Light.

[bucketracer]

I have made a wee start on the old bike refurbisment.

Looks great, love those upside down forks ................. looks like its going to be a serious bit of kit when you have finished refurbishing it.

[husaberg]

Looks great, love those upside down forks ................. this looks like serious bit of kit

$45 came with a frame and other crap, Chinese of a 3/4 bike I think, maybe Hummer?They weigh about the same as the originals to.
I will try and find some ohlins stickers to keep up with the jones.It was bloody hard to find any forks in the correct length as most are to short (PITBIKE) or to long any real bike.
The originals are 26mm and rusty with the top yoke forming part of the handle bars (All steel )and a single pinch bolt on the lower yoke only, They had to go.They Seem to damp ok and the spring rate is close to spot on.The Stem needs a little work as it solid. I have got a 4 piston Brembo to go on with the 300mm cast iron floating rotor and RS master cylinder. The swing arm is Chinese alloy and stronger than the original ,(not hard ,stock is piss weak)
Its a little short but came with a load of bits for $25 I have a small 160mm disk and plan on using a ktm 50 caliper (assuming my son doesn't mind sharing it). With adaptors to suit either an A100 or fs1e sprockets or KTM 50 (they are available in almost any size.)
Incredibly the wheels (17x2.5 and 17x3.5 both Honda fronts)$240 for both Tintin great bloke They weigh pretty much the same as the 18x1.4 original comstars.

If anybody wants some 90/90/18 17 year old slicks. Open to offers.(A bit of nugget on the sidewalls to cover the cracks and they would be like new!)

The frame will need to be hacked a bit to fit the monoshock. Probably pit bike at this stage and the frame spine has to go as any carb bigger than the tzr250 will not fit .The std frame had to be dented (Big hammer muliple hits)to fit the origion 28mm flatslide carb in. The subframe was always a bit low (It scraped on the seat pan at times) and with my extra kgs of (muscle?) it will need to be raised.
Below is scanned pic of the original oldschool (well I was fresh out of school)bucket .I think the year was 97
Note the tank . if you have seen a std MB5 one. You will know why.

Does anybody remember which bike of the 80s had a remote preload adjuster ns400? suzuki impulse?I was thinking of adapting one

[ac3_snow]

Been having a few issues with getting my bike to idle, would either not idle (not enough gas) or continue revving like mad, (enough gas and perhaps and air leak) so funnily enough turns out my bike had an air leak. Don't know that I should be admitting it on here, but I never got around to blocking the oil inlet hole in the side of the barrel.


So with that out the way I continued the leak test and found the head gasket wasn't quite sealing at the rear of the cylinder. I already have an oring but the addition of copper gasket helped that. Then found the base gasket was also leaking at the rear of the cylinder, neither of them huge amounts but fixed them up all the same.

Made my tester with the remains of an old spark plug, an extra long valve from a bicycle tube and some arldite.


By the time this was all done it was perhaps a little late too piss off the neighbors so still don't know if it will idle just yet, minor details tho. Can't wait for saturday!

[F5 Dave]

I have made a wee start on the old bike refurbisment.

Yeah those forks should have juust about enough travel.

Can't see what the swingarm pivots mods are, but my old MB50 frame stiffened up considerably with teh addition of a tube run above the pivot between the plates. However don't be as stupid as I was back then, test position with the chain on using large sprockets & more importantly consider sw movement. (had to cut a slot in mine).