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Main Area => General GS500 Discussion => Topic started by: ventur4th on February 01, 2008, 09:09:56 AM

Title: 2006 engine in a 1993 frame
Post by: ventur4th on February 01, 2008, 09:09:56 AM
Do any of you folks know if an 06 engine will fit in a 93 frame?
Thanks in advance for your help!
Title: Re: 2006 engine in a 1993 frame
Post by: frankieG on February 01, 2008, 09:32:59 AM
yes but you will have extra plumbing to do with the oil cooler.  i am pretty sure it has been done before
Title: Re: 2006 engine in a 1993 frame
Post by: dgyver on February 01, 2008, 09:40:51 AM
It will fit...

but...

04+ have 1 ignition pickup,
89-02 have 2 (these should swap fine unless you want to replace the CDI and all the other electrical crap)

04+ have electronic tachs (the hole in the head was still in the 04 for the drive and may have been removed in recent years. Also, the worm drive on the EX cam may have been removed)
89-02 have mechanical tachs

04+ have oil coolers (The oil cooler will need to be utilized or the additional plumbing will need to be addressed and not just plugged)

There may be some other items as this has been brought up many times.

Title: Re: 2006 engine in a 1993 frame
Post by: ventur4th on February 01, 2008, 11:06:26 AM
Thanks for the info!
The "not just plugged" part of the oil cooler was what I was wondering about. Bracketry for a cooler shouldn't be difficult. IMHO, an oil cooler on an air cooled engine is a good thing, so it would be worth doing.
The tach issue could be a bit more difficult though....do any of you with more GS knowledge than I have any suggestions?

This project started with the buying of a real rat GS500. I've always liked the GS500 and when one was offered for cheap, I bought it thinking that it would be a fun project to tinker with, a lighter weight ride than my 1050 Sprint to use in the canyons, and a possible track day bike.
The previous owner (who knew little of engines/mechanics) had the carbs so messed up that the bike would barely run. Pulling the carbs revealed that not only were they missing parts, but one of the air screws was rammed into its seat, the head stripped off and wasn't coming out. No big deal -  I bought a set from OklahomaMike (thanks Mike!) While waiting for the carbs to arrive, I pulled the valve cover to check the valves and discovered that when I tried to turn the engine by rolling the rear wheel with the trans in gear, the engine wouldn't turn. At this point it appears that the trans is locked up. So now Im looking at options to remedy this and the 06 engine is one...Ahh the project bikes are so much fun! LOL
Title: Re: 2006 engine in a 1993 frame
Post by: simon79 on February 01, 2008, 11:30:04 AM
I'd also say, '01+ carbs have dual-cable throttle setup, '89-'00 have one throttle cable. ;)
Title: Re: 2006 engine in a 1993 frame
Post by: ventur4th on February 01, 2008, 11:41:38 AM
OK, just found the tach info.
That SEARCH function is wonderfull!
Using the older carbs, so the cable shouln't be an issue.
Title: Re: 2006 engine in a 1993 frame
Post by: Bob Broussard on February 02, 2008, 05:12:12 PM
If you remove the horn, the oil cooler will bolt into the same hole. But you'll only have 1 bolt holding it on unless you drill a second hole.
I put a 2005 motor in my 89. The 1 bolt holds the cooler just fine and the hoses don't need any brackets. :thumb:
The 2 issues with the newer motors is the ignition and the alternator connections.
Using the older ignition plate and rotor solves 1 issue. I was going to cut off the connector from the stator and put bullet connectors on the wires. But I wasn't sure which wires to connect to the rectifier wires.
So I replaced the stator with the older style.
The extra wire from the neutral connector can be left unconnected. :icon_mrgreen:
I also mounted newer gauges with the electric tach, so the missing tach cable didn't present a problem.
Title: Re: 2006 engine in a 1993 frame
Post by: nastynate6695 on February 02, 2008, 06:25:23 PM
Hey bob ....good to see you alive and kicking...Thanks again for the timing advance  worked out great... :thumb:
Title: Re: 2006 engine in a 1993 frame
Post by: Bob Broussard on February 02, 2008, 07:10:34 PM
You're welcome :cheers:

I check out the board almost daily. There's alot of good advice being given by others, so I don't feel the need to chime in very often. I still learn a few things occasionaly.
I just let others ask the question, so I don't look stooopid :laugh: :icon_twisted: