Page 1 of 6

A Deltabox RD350LC

Posted: Mon Oct 08, 2012 10:56 am
by Stankflapper
Hi yamfreaks, Well I happen to have a Rd350LC complete engine lying around in my factory, so I picked up a little FZR250 Deltabox frame off ebay really cheap as the engines in these things are gutless and problematic.

So being water cooled and not looking like it will be a difficult conversion, I am going to jam the 350 two bangar in the hole. Here are some pics of the progress with the tooth pulled out. I will keep the pics coming. :lol:

Image
Image
Image
Image
Image
Image

Re: A Deltabox RD350LC

Posted: Tue Oct 09, 2012 8:53 am
by JonW
Cool, should be a giggle I reckon. Didnt realise the FZR250 was twin front disk, and if those are the same as the 400 brakes, they also fit the post 85 ypvs, if they are the 600 they wont tho.

Re: A Deltabox RD350LC

Posted: Tue Oct 09, 2012 2:03 pm
by Jeram
very nice :)

Re: A Deltabox RD350LC

Posted: Tue Oct 09, 2012 4:02 pm
by ken007
you must be nearly done by now, you've been at it about a week ,lol, did you check your letterbox?

Re: A Deltabox RD350LC

Posted: Tue Oct 09, 2012 4:40 pm
by Stankflapper
So I whipped up the engine mounts today so the thing wont fall out. At this stage it all seems to line up. The only hiccup so far is the different chain/ sprocket pitch.
Image
Ken, I sent you two PM`s but I was not sure if you got those, thanking you very much for that item . It is bolted on and the old one is tossed in the parts box. You are a legend mate, thank you again. Macca

Re: A Deltabox RD350LC

Posted: Tue Oct 09, 2012 5:29 pm
by ken007
glad to help, no messages received, no worries, pretty solid looking welds you have there, keep the pics coming, im not very imaginative so i cant quite picture it yet

Re: A Deltabox RD350LC

Posted: Wed Oct 10, 2012 7:13 am
by mboddy
Use a 5Y1 countershaft sprocket, a 520 chain and a RZ350 rear sprocket.
It will all line up ok if you mount the engine correctly.

Re: A Deltabox RD350LC

Posted: Wed Oct 10, 2012 7:16 am
by Stankflapper
So the RZ rear sprocket bolts straight onto the FZR wheel?

Re: A Deltabox RD350LC

Posted: Wed Oct 10, 2012 8:01 am
by mboddy
Yes.

From the JT Sprockets web site:

FZR250 EXUP

Image

RZ350

Image

They are easily available in steel:
ebay jt sprocket

Or in alloy:
ebay renthal sprocket

ebay Tallon sprocket

Re: A Deltabox RD350LC

Posted: Wed Oct 10, 2012 5:04 pm
by Stankflapper
Thanks Mboddy, I went to my local bike/sprocket shop today and picked up those sprockets you suggested and you were spot on, they are bolted up. Thanks.
I got to spend a few hours on it today and bolted the crankcases in.
Image
Image
Image

Re: A Deltabox RD350LC

Posted: Wed Oct 10, 2012 7:15 pm
by hybrid
Looking forward to seeing it finished!
I really like it.

Re: A Deltabox RD350LC

Posted: Thu Oct 11, 2012 4:22 pm
by Stankflapper
Pistons arrived so I can assemble the rest of the engine now and slot it in.
Image

Re: A Deltabox RD350LC

Posted: Fri Oct 12, 2012 8:20 am
by EPApolice
What are your plans for this? are you going to use it on the road or the track. I ask because I am interested to see how you go about registering a hybrid. Nice job your doing too.

Re: A Deltabox RD350LC

Posted: Fri Oct 12, 2012 11:20 am
by Stankflapper
It has been previously registered. So when I re-register I will tell them I have had to replace the engine and supply the RD350 engine number. I am not planning on getting any engineer reports, just try to fudge it first. 8)

Re: A Deltabox RD350LC

Posted: Fri Oct 12, 2012 12:38 pm
by Stankflapper
I had a set of old RD chambers hanging around in the shed, it seems they will fit up pretty easily.
Image
Image
Image