Engine transplant successful. There were quite a few issues I had. But it all seems to be legit.
Difference in carbs:
It took me about a week to do this properly:
I've needed to swap out the fly wheel
Generator
The 4DL inlet had no chance of fitting. So needed to bore out the old DT inlet to compensate for the new blue printed 32mm VHSA
Currently running a RAM air filter instead of air box. For jetting purposes this is just a simpler method.
When swapping over the generator I encountered my first problem. Torqued the genny up only to have the crankshaft completely lock up. I double checked the wrench, then the book. Nope Set up correctly but the crankshaft is seized. Sugar. Stripped it off. Had a look for damage. Nothing. All looked good. Checked the wrench. Then the book. Then refitted the fly wheel. Was fine. Not sure what happened there. If anyone knows feel free to let me know.
I then had complete and utter total electrical failure. This left me scratching my head since everything was working perfectly prior to the engine swap. I rode home on it Friday. Well apparently the ignition switch connecting block managed to completely disintegrate. Without me even touching that as part of the engine conversion. So bullet crimps was the only way to have this fixed. She fired into life off the starter motor. She is a quiet one compared to the DT engine. Wtf? Lol. Sorted the tickover and had her idling nicely.
I decided to let my brother take it up the road (in case it seized lol). Naturally it's smoking loads and this is hindering performance by quite a factor. He suggested that I push him and then he'd put it in gear. Yeah did that....nothing happened. Clutch wasn't engaging. Great crack.
Never had this problem before. Scratching my head again. Stripped the clutch cases back down and had another look. Sure to be sure with your own eyes you could see that the clutch is not engaging. No doubt about it. Stripped it to pieces and put it back together and tried again.
And I finally understand what you guys mean. The gearbox is sooooo smooth. It really is lovely. It just needs Powervalve sorting. Cosmetics doing and running in. I took a video of it first starting will upload it soon.
I've ridden it for a few weeks now.
It's okay. It's no where near as torquey or as fast as the Aprilia, which I know some people have claimed! It's not slow by any means. But I'd say maybe no faster than a 170 Athena. But it really is early days yet. There are still a few things left for me to do. I want to sort out the underslung and jet it properly and, of course, run her in.
I'm just happy it's started. I've already started my next DTR engine build.
I'm going down a similar route but this time I'm just swapping out the gearbox for a TZR 4DL gearbox. And I'm going to use a nikasil barrel and have it aggressively ported. I'm going to see if Mick can put in Auxillary exhaust ports like on the TZR SP barrel. Haven't phoned him yet. And I'm going to take my time. Remove all the casting flaws that were found in the 4DL engine that I didn't bother with last time. And dremel the crank case to a polish.