FOR SALE: 2stroke 250cc SportsProduction RGV

[DCNZ]

http://www.trademe.co.nz/Trade-Me-Motors/Motorbikes/Motorbikes/Sports/auction-229161558.htm

[blackstars_10]

Hi
Just a few questions regarding the bike
Do you have anymore photos?
do you still have the adjustable sp forks and do they come with it? And what shock does it have?
And those ratios are the stock gearbox aren’t they-shouldn’t this have a CR gearbox?
You say the cylinders are 88 and 89? So you have to use one k piston and one L ae. Do you have the other barrel?(matching). And when did you put in the new pistons and rings?
Also quite interested in your ram air. How have you gone about it? How do you keep crud out of the carbs, and equalise tank and airbox pressures? Sounds like you’ve put a few hours into this. I’ve only ever gone so far as contemplating hooking up the cool air feed from the fairing into the rear of the box(like the kit manual). What main jets are you running? Have you designed a new airbox?And was it set up on the dyno?
And finally what work has been done to the exhaust?
cheers

-edit-oh yeah how much tread on the tyres?

[colsan1]

I've asked this before and i still dont get it.
Can you explain how you've got 3 powerbands ?

[DCNZ]

Gear box spec's are different to the ones posted.

[DCNZ]

This bike has had a lot of work done to the engine, intake & exghust which gives it three power bands. 1st @ 5,000RPM. 2nd @ 8,000RPM. 3rd @ 11,000RPM.
Basicly, a power band is the sweet spot in an engines RPM. A std pre '91 RGV250 has two. One about 2,000rpm before the power valves open, that stays in band till 500rpm before the power valves open & another at about 1,500rpm before max horse power. A post '91 has three bands. The first two are about 1,500rpm before the power valves open, that stays in band till the power valves open & another at about 1,500rpm before max horse power.
Do you understand 2stroke exghust ports & there relivence to a power band? If not you should start with wikipedia, then google it & keep reading about it...
If you want me to work on your bike then let me know.

[blackstars_10]

Obviously your bike is an interesting proposition due to the very low km (3600), please don’t take offense about the number of questions that im asking. I just am trying to get a better idea of what the bike is like.

Yeah mate it would be cool if you could put up some more photos. Preferable some outside in good light.

Yes the gear box is std VJ21RGV250SP & yes it should have a CR gearbox cassett for track racing not so great in 50kph zones & you won't have a clutch for long if you ride in the city & your engine will struggle and rattle/knock in 30kph road work zones.
-Does the CR gearbox come with it aswell? (they’re not so bad on the road- and whats a rgv doing going 30kph :D.) Common, can’t be a sp without any of the goodies:msn-wink:
No. I said the top cylinder is a 1988 Suzuki RGV250SP VJ21A-J, the bottom is 1999 Aprilia RS250. Also, the J,K & L pistons from 1988-1990 are the same becouse the transfer ports where not changed untill 1991. but, yes it's running 1 early & 1 late model piston.
-Yeah sorry I thought you’d made a typo with the 1999 barrel. Quite interesting you chosen to use vj21 and 22 cylinders. Must have been a very hard 3600 km for the cylinders. It shouldn’t even have needed a rebuild due to km (but good because of age). As an aside the j/k piston have a different locating pin position from the L/vj22, so this can cause the rings to catch on the rear ports if they are used interchangeably.

To be honest your ram air is my biggest question. What do you mean by ram air? I think we might be thinking slightly different things. And Whoa!! #200 (stock) main jets with ram air:shit:!! Surely not!! Even if you just removed the lid (or for that matter changed pretty much anything in the airbox), your jetting would have to reflect this. Once again, I assuming these jets are just a typo. I’m also surprised there aren’t any fueling problems from the increased pressure caused by the ram air. The gp bikes either pressurise the fuel tank or use a fuel pump. So can you give a rough idea of whats been done here and confirmation that it’s all running sweet. Am I right in assuming you got your hp figure from a dyno? Was this before or after the mods.

So about the exhaust.. What exactly to you mean by you have done work on them. How have you tuned them? Just a bit of a vague answer

Just out of interest, what was the original color scheme?

Thanks for your help again
It looks nice and clean from what I can see, and the blue has grown on me.
Can you pm me with how much bargaining room there is?

[Squiggles]

how about a rego plate number?

[DCNZ]

Gear box has 16 teeth first gear sprocket... the rest are about the same.

[DCNZ]

http://www.carjam.co.nz/car/?plate=7a8gk0w1194108307&search=Check

Think thats what you where after. It has another engine in it now to, thats why the k's are different. I put the gear box in and cylinders on as well. So the engines a collection of bikes. As is the body, frame, etc...
I spent a year building it.

[blackstars_10]

Whoa sorry mate. No offense meant. The only reason I messaged you was because you messaged me first answering my questions that i posted above. And I was just trying to clarify some of your answers because they were contradictory and didn’t make sense.. And was wasn’t meaning to insult you by stealing ‘trade secrets’, just querying how it is possible to run a ram air system on stock jets. Sorry its just I like to know as much about a bike that I’m considering before I make a decision but no worries, good luck with your sale.
Oh yeah cheers for putting up the history link-it was very helpful

[Ragingrob]

Well you're definitely not a salesperson that's for sure :lol: