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BIKELAND > FORUMS > ZX-14.com > Thread: A Gen2 14R motor will fit a Gen 1 frame NEW TOPIC NEW POLL POST REPLY
joseph702


Zone Head
Posts: 598
posted January 21, 2013 03:52 AM        
The 14r cams won't work unles u do work to head cam bace is bigger . Ud crack the top braces when u try to torque it .
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joseph702


Zone Head
Posts: 598
posted January 21, 2013 09:23 AM        
Lol any one wana buy my motor so I can do this
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edszx14


Expert Class
Posts: 271
posted January 21, 2013 11:02 AM        
Hello Joseph, are you saying the 14r cams wont work in the Gen 1 head because the cam base is bigger? I havent tried the Gen 2 cams in the Gen 1 motor but I sure thought about it.
____________
Ed

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edszx14


Expert Class
Posts: 271
posted January 21, 2013 11:12 AM        
quote:
Id be interested in doing a motor swap as well, I'm looking on line now for the 14r wiring harness. This is good info for us 14 owners who don't have the funds to dump on a new bike. Trick or Treat


Hello Mr. Smooth, If you are planning on using a Gen 2 wiring harness on a Gen 1 bike, you will also need the Gen 2 ECU because the connectors are different than the Gen 1 ECU.

I know a guy that may have a spare Gen 2 wiring harness. Give me a call at 817 602 8327 and I will get you hooked up with him.
____________
Ed

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joseph702


Zone Head
Posts: 598
posted January 21, 2013 11:31 AM        
Ya the cam base is bigger on 14r . Jim was telling me from cnc . Couse I was gana slap new cams in l
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Mr Kane


Parking Attendant
Posts: 1
posted January 29, 2014 03:17 AM        
quote:
I know this has been asked in different post but I wanted to address this issue in a new post. I have just installed a 2012 Gen 2 14R engine in my 2008 Gen 1 14 frame. The engine swap is a direct bolt on. I am using my Gen 1 wiring harness with the Gen 2 engine.The front engine mounts and rear engine bolts holes are the same. No drilling required. I used my Gen 1 throttle bodies and they match up perfectly to the engine and the upper frame intake ducts perfectly.

Now to the issues to get it running. Since the Gen 2 engine does not have a cam position sensor, but the cam sensor boss is manufactured in the Gen 2 head, I sent the head to Jim at Competition CNC to have the cam sensor boss drilled out and the bolt hole to hold the sensor in place drilled and tapped. Another issue, that I didn't catch initially, was the Gen 2 water temp sensor is a smaller unit and the connector is completely different from the Gen 1 water temp bulb and connector. I already had the head installed back on the motor when i found out this water temp bulb issue or I would have had Jim take care of it at the same time he fixed the cam position sensor.

My Gen 1 Ti-Force header bolts right up to the exhaust ports but the header does hit the oil pan which causes the bolt hole on the lower right side to not line up exactly. Its about a complete hole off which doesn't matter to me. On the initial start up, I could not get the engine to run when I released the starter button. After several tries of trying to get it running, I finally rotated the throttle bodies to wide open and then back to the closed position. The motor then started right up and continues to start and run without any issues.

The Gen 2 front sprocket cover does not have the provision for the speedometer fitting but the Gen 1 front cover fits perfectly.

I haven't ridden the bike yet because I am redoing my nitrous system. Hopefully, by next weekend I will be able to take her out for a spin around the neighborhood. I will keep y'all updated on the test drive but I really don't see any issues popping up.

While Jim had the head at Competition CNC, I asked him to do a Stage 2 port job on it and installed bigger valve springs. Now that i have the engine in the bike and running, the motor sounds very strong. I can't wait to get her to the track for some test and tune.

If anyone is interested in doing this swap, its really an easy swap and i know where two low mileage Gen 2 motors are located.

If you have any questions, just give me a shout.


Ed,
How is this setup working out for you so far. Have you noticed anything going wrong as of yet? I recently blew my engine up in my 08 and I'm looking at swapping it out with a Gen II motor. Any other little things I need to look out for? I planned on resusing my Gen I harness and TBs. Thanks man.

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elusions


Parking Attendant
Custom builder, veteran
Posts: 2
posted October 25, 2017 04:39 AM        
EDSzx14, man thanks for this. i know im 5 years late on this thread but its perfect timing for me. HA
____________
Real riders know the consequences. Others just hear about them.

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Y2KZX12R


Needs a job
CompetitionCNC.com
Posts: 3762
posted January 01, 2018 09:38 PM        
Guys, I'll add a little to this older thread. I just saw this thread, I haven't been on the boards in a long time now.

I wouldn't bother with the gen 2 cams in a gen 1. The difference isn't worth the effort and cost.

Just put in a set of web .395/.378 cams in and be done with it. They are the biggest cams that can run on the stock buckets. They wont hurt your mid-range power at all. You will need to set the cam timing accurately so you have .050" min intake valve to piston clearance and you will need a set of good valve springs.



____________
Y2KZX12R
CompetitionCNC.com

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BrucerZX14


Expert Class
Posts: 373
posted March 23, 2018 02:09 PM        
I just did the gen 2 swap. Only thing is I used a gen 1 head. No need to change the harness. I did have a slight issue with the front motor mounts not lining up. Fixed that by making my own. My gen 2 motor came out of a low mileage 2015.
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BIKELAND > FORUMS > ZX-14.com > Thread: A Gen2 14R motor will fit a Gen 1 frame NEW TOPIC NEW POLL POST REPLY

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