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avatar_busa1300

Looking at buying 3XV2

Started by busa1300, June 18, 2019, 02:01:17 AM

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busa1300

Looking at buying a 1991 TZR250SP 3XV2
Serial numbers are within the correct range.
Has the correct radiator, swingarm, forks, gauge mounts, dry clutch, 3XV10 cylinders...unsure of carb size.
Do not know what CDI it has....original pipes are long gone.

I'm a RGV guy, and have found Megazip to have quite a few NOS parts still....
Are engine rebuild parts somewhat simple to source (not cheap I'm sure though)...?

It will need a complete rebuild top to bottom, but if all the correct parts are there....
The million dollar question.
What are these worth, and are they harder to keep running than a standard 3XV with the 36's

What kind of deep hole might I be digging for myself?
Smoking for over 40 years.
TZR250SP...3XV2
RZ350-RZV500R where it started and why
RGV250 VJ21L-VJ22FL-VJ22N-VJ23T MotoGP street fun
RS250 Track day
KD80 cherry popper - JR50 for the kids - and a TM400 powered TS for laughs

SeaR1ck

Don't buy it your rgv's will go up forsale after you ride it!  >:D


mellorp

#2
A restricted 3XV is very frustrating. Once you get proper power out of it it's similar to a VJ23

They are physically quite small so if you are more teenage Japanese than middle aged European you will be fine.

They are all money pits

Over on the RGV forum Tasswipe buit a TD VJ23 but after riding my 3XVRS (deresitricted) at Anglesey, he sold the TD VJ23 (to me) and bought a proper race bike 4TW TZ250, all based on riding the 3XV.

The TD VJ23 has had a lot of work and I think is a better TD bike than the std 3XV, but neither are as good as a proper TZ. I ended up with Pauls 4DP1 and the rather good 3XV/4DP4 which is ace and rides like the thing it is a 3XV on steroids. IMO the 3XV/4DP is better than the 4DP1
Uncle (Reverend) Phil !!!

ybk

If it already has pipes then a zeel will finish the derestriction. Rebuild wise it's definitely not as easy as RGV's (in terms of part availability) but still doable. A fair few parts are still available so that helps. The rest you have to look at sourcing secondhand.

Personally I put SP models on par with VJ23's and MC28's in terms of value, maybe a little less. 28's and 23's get slightly higher prices in Japan last I checked. SPR's for some reason fetch the highest prices.

No harder to keep running than a standard 3xv I'd say.

You're digging hole that swallows money for sure, worth it though ^-^

Have you got any pics to share?

busa1300

The Japanese web site the bike is on will not let me copy the picture....
maybe I'll try to do a screen shot of it.

Here are a few money pits I have already emptied way too much $$$ on.


I know it really won't be an investment by the time I would have it all back together,...
... but I was just wondering what a basket case yet complete SP would be worth.....

My VJ23 is beyond words, so if a 3XV SP can be the same to some degree.....without going all the way with a TZ, I will probably throw a bid out on it and see what happens.

Is 60+ HP at the rear wheel reasonably easy with a unrestricted 3XV2
my VJ23 and RS250 managed that without much work at all...? (the VJ22FL is still in restricted mode)
Smoking for over 40 years.
TZR250SP...3XV2
RZ350-RZV500R where it started and why
RGV250 VJ21L-VJ22FL-VJ22N-VJ23T MotoGP street fun
RS250 Track day
KD80 cherry popper - JR50 for the kids - and a TM400 powered TS for laughs

mellorp

3XV has a broader spread of power like the VJ23, rather than out and out HP. Std is restricted to either 40 or 45bhp. Pipes and ignition will give the biggest and quickest gains rather than porting. After that it's all about the set up

Have a read thru all the 3XV build/project threads. Paul's is a good one as it goes into a lot of detail. My RS build is also on there, as are many many others
Uncle (Reverend) Phil !!!

Scotty4321

Hi Busa,
I have a V2 and when it's running properly it's a fantastic bike. They are small but I'm 6 2 and find it fine. Suspension is a little soft.

A basket case SP has to be worth at least £2K more than a basket case R and  the gap will widen once tidy. They only sold 1000 bikes with rotary powervalves, Cranks are different but still available, check for 10 heads, pistons are flat topped, intake manifolds and reeds different but will be right if carbs are. Air boxes different, fairing side panels should have air ductwork fitted on the inside. Original panels are expensive and difficult to find as are good tanks.

My brother has a VJ23 with the same race pipes as yours and a zeel and on the same dyno on the same day it made 1.5HP more than mine. As Phil (Mellorp) has said the SP kills it everywhere else in the range though I don't have race pipes min.
You should get over 60HP a dynojet easily.
Get the squish and head volumes right, put a zeel on (forget the sugo cdi), lose the airbox,  forget the air sovs and powerjets, just play with bleeding in air via a pipe and jet and a few hours on the dyno, fit massive main jets, set up power valves and ignition timing. then Bobs your uncle.

busa1300

Thanks for all the input guys.
The last thing I need is another project....
After finishing my RZV I said I was done for the year.
But my addiction has drawn me in deeper....I gave my high bid amount to my Japanese connection.
Just a matter of time now....

????
Smoking for over 40 years.
TZR250SP...3XV2
RZ350-RZV500R where it started and why
RGV250 VJ21L-VJ22FL-VJ22N-VJ23T MotoGP street fun
RS250 Track day
KD80 cherry popper - JR50 for the kids - and a TM400 powered TS for laughs

busa1300

#8


Smoking for over 40 years.
TZR250SP...3XV2
RZ350-RZV500R where it started and why
RGV250 VJ21L-VJ22FL-VJ22N-VJ23T MotoGP street fun
RS250 Track day
KD80 cherry popper - JR50 for the kids - and a TM400 powered TS for laughs

ybk

#9
Saw that one, looks like a good base. Not a bad price, did you win?

busa1300

It will be in my garage in about 10-12 weeks I hope.
I just checked new crank prices....$1400 ...!!! Damn....a new genuine RGV crank only cost me $$700
Have to pay to play I guess.
Smoking for over 40 years.
TZR250SP...3XV2
RZ350-RZV500R where it started and why
RGV250 VJ21L-VJ22FL-VJ22N-VJ23T MotoGP street fun
RS250 Track day
KD80 cherry popper - JR50 for the kids - and a TM400 powered TS for laughs

Steveog

Your location isn't posted on your profile. If you are in the UK, call Andy at Webb's Yamaha in Lincolnshire. If he can get an SP crank, the price in USD was well below what you've discovered.

Andy offers a discount to Forum members. At least he did late last year.

If you're in the US, getting the Crank from the UK will be a problem. (Complicated story. Trust me) You'll need to make friends with a UK resident and have them act as your broker.

Shipping is expensive. DHL has proven reliable.

Good luck.
Brief, fleeting Glory. Which of itself cannot last, but while it does is the best game of all.

busa1300

Quote from: Steveog on June 21, 2019, 03:58:05 PM
Your location isn't posted on your profile.


Good luck.

Same state as you  :))
Just more rain and snow...... :(
Smoking for over 40 years.
TZR250SP...3XV2
RZ350-RZV500R where it started and why
RGV250 VJ21L-VJ22FL-VJ22N-VJ23T MotoGP street fun
RS250 Track day
KD80 cherry popper - JR50 for the kids - and a TM400 powered TS for laughs

Steveog

Roger, your location. Hello, Hoosier.

Still, spend the money on a phone call to Andy at Webb's. Check his pricing. Make sure you let him know you're wanting the crank for off-road use ONLY.

You'll still need a UK friend to help work this deal with Webb's. The price is worth the effort.

My SP Crank is sitting in my my modded "R" waiting for that first kick.

Again, good luck.

Steve
Brief, fleeting Glory. Which of itself cannot last, but while it does is the best game of all.

busa1300

I'll check into it.  (-P)
I sold a 72 GT750J to a guy in the UK I could try and contact again, or possibly check Sean at the Tuning Works....(RGV central)

I have more pics from the auction here.
https://box.yahoo.co.jp/guest/viewer?sid=box-l-7o3xvpj44izp3eu6ea3nwh6afq-1001&uniqid=72436ad9-6021-499a-ac47-e38631464a52
It does not look like it has been cannibalized too much of it's SP specific parts.....
....but I'm early in my learning with them, so if anyone sees something wrong let me know.
One pic shows the side of the lower carb, not sure if they are still the 36's or not...(seller could not confirm)
Smoking for over 40 years.
TZR250SP...3XV2
RZ350-RZV500R where it started and why
RGV250 VJ21L-VJ22FL-VJ22N-VJ23T MotoGP street fun
RS250 Track day
KD80 cherry popper - JR50 for the kids - and a TM400 powered TS for laughs