No. He's not using a GL500 frame. He needs to modify the hanger that fits his CX500.@Randall-in-Mpls So @SirFoxx could order these and they'd be a bolt in solution?
83 HONDA GL650 GL 650 SILVERWING ENGINE MOUNT BRACKETS #U21 | eBay
83 GL650 Engine mounts. Part is in good working condition. Any problems will be stated below. (11161) (4).www.ebay.com
650 on a 500 frame
Hey--
Just wanted to start a general discussion about the thoughts, or personal experience of a cx/gl650 engine swapped onto a 500 frame. I've got a cx500 standard that I rip around every now and then, and I think the extra power from the 650 would be nice!
I've talked to murray about it several times, and I know he loves the extra power the 650 has to offer, even with the slightly longer gears.
What got me going on wanting to do this is, I picked up two GL650 engines from an estate sale for $100. One has the end of the camshaft snapped off, where the water impeller goes, and the other is complete. I need to stick my endoscope into the complete engine and see how the cylinders are, make sure the complete one is in decent shape and not blown up from lack of oil. Makes me curious why the PO was trying to take apart the other motor, and how hard he was prying at the impeller to break the cam.
I've been trying to get a 2nd starter as neither engine has one so I can also crank them over and listen for anything funny, but it seems they are becoming hard to come by and rather expensive. I'd use the one off my cx500, but I'd rather not drop the engine just to borrow a starter...
(if anyone has one they'd sell to me cheap I'd really appreciate it~)\
I think I have everything mentally written down that I am going to need / do for the swap:
Rae-San ignition, timing jumper to aggressive
12v coils
murray mid-pipes
rejet murray carbs
modify cx500 engine hangar
gl650 radiator + efan wiring
swap output shafts
inspect cam chain, replace mechanical seal while swapping output shaft
Swap over HD clutch springs?
I don't think I'm missing anything..but I probably am. If the cam chain tensioner isnt stretched to the max, I am going to leave it. No reason to change good parts. Same with the stator.
Only thing I have ordered right now is the 650 radiator, mainly because it was in great shape, came with the efan and the shroud for $70 shipped!
I may make a build thread once I get this project going. The hardest part will be modifying the engine hangar, but theres a video on youtube doing it, and its pretty easy if you have a welder (which i do lol).
Just wanted to start a general discussion about the thoughts, or personal experience of a cx/gl650 engine swapped onto a 500 frame. I've got a cx500 standard that I rip around every now and then, and I think the extra power from the 650 would be nice!
I've talked to murray about it several times, and I know he loves the extra power the 650 has to offer, even with the slightly longer gears.
What got me going on wanting to do this is, I picked up two GL650 engines from an estate sale for $100. One has the end of the camshaft snapped off, where the water impeller goes, and the other is complete. I need to stick my endoscope into the complete engine and see how the cylinders are, make sure the complete one is in decent shape and not blown up from lack of oil. Makes me curious why the PO was trying to take apart the other motor, and how hard he was prying at the impeller to break the cam.
I've been trying to get a 2nd starter as neither engine has one so I can also crank them over and listen for anything funny, but it seems they are becoming hard to come by and rather expensive. I'd use the one off my cx500, but I'd rather not drop the engine just to borrow a starter...
(if anyone has one they'd sell to me cheap I'd really appreciate it~)\
I think I have everything mentally written down that I am going to need / do for the swap:
Rae-San ignition, timing jumper to aggressive
12v coils
murray mid-pipes
rejet murray carbs
modify cx500 engine hangar
gl650 radiator + efan wiring
swap output shafts
inspect cam chain, replace mechanical seal while swapping output shaft
Swap over HD clutch springs?
I don't think I'm missing anything..but I probably am. If the cam chain tensioner isnt stretched to the max, I am going to leave it. No reason to change good parts. Same with the stator.
Only thing I have ordered right now is the 650 radiator, mainly because it was in great shape, came with the efan and the shroud for $70 shipped!
I may make a build thread once I get this project going. The hardest part will be modifying the engine hangar, but theres a video on youtube doing it, and its pretty easy if you have a welder (which i do lol).
41 - 60 of 93 Posts
i think my cx500 is vented through the cylinder head, though i'll have to check. its been awhile since ive looked under the covers.Depending on the year of the engine the crankcase may be vented through the cylinder heads, CX500s, through the pulser cover, GL500 and others, and through a bottle breather at the timing inspection port.
before you say the '78 didnt have X style, i had to swap an '80 engine onto the frame after i locked the '78 engine up...
I know the gl650's that i have use the bottle breathers.
@SirFoxx Do you still have the valve covers from the 78? @Molten Stenberg cracked one of his and was looking for a set. Any set really.i think my cx500 is vented through the cylinder head, though i'll have to check. its been awhile since ive looked under the covers.
before you say the '78 didnt have X style, i had to swap an '80 engine onto the frame after i locked the '78 engine up...
I know the gl650's that i have use the bottle breathers.
ok, so it needs to be m6x1.0 to m8x1.0? just want to make sureNote that these are M6x1.0 to M8x1.0. The common adapter is M8x1.25.
Maslin M6 to M8 Inner and Outer Threaded Hollow Tube Adapter Inner Outer Threaded Coupler Conveyer Adapter - (Color: Zinc Plating, Size: M6 to m8 Pitch1.0, Thread Specification: 10 Pieces): Amazon.com: Industrial & Scientific
Maslin M6 to M8 Inner and Outer Threaded Hollow Tube Adapter Inner Outer Threaded Coupler Conveyer Adapter - (Color: Zinc Plating, Size: M6 to m8 Pitch1.0, Thread Specification: 10 Pieces): Amazon.com: Industrial & Scientificwww.amazon.com
nope. the engine got scrapped about 6 years ago.@SirFoxx Do you still have the valve covers from the 78? @Molten Stenberg cracked one of his and was looking for a set. Any set really.
Correct.ok, so it needs to be m6x1.0 to m8x1.0? just want to make sure
Bottle Breather and the vented pulser cover.I know the gl650's that i have use the bottle breathers.
The bottle on the inspection port is really to increase condensation of vaporized oil before it passes to the reclamation system. It's a secondary vent, at most.
reclamation system..?Bottle Breather and the vented pulser cover.
The bottle on the inspection port is really to increase condensation of vaporized oil before it passes to the reclamation system. It's a secondary vent, at most.
OIl vapors and moisture from the crankcase are directed to a collector under the air filter housing. The volitiles are pulled in with combustion air and burned. The heavier junk, including water, is retained and drained at each oil change (if you're doing your proper maintenance.) The GLs have a more elaborate separator and reservoir. I believe the bottle is intended to help separate the oil vapor and return it to the crankcase.
oh. my cx500 is just venting to the atmosphere lol. i think i have one of the hoses still hooked up tho.OIl vapors and moisture from the crankcase are directed to a collector under the air filter housing. The volitiles are pulled in with combustion air and burned. The heavier junk, including water, is retained and drained at each oil change (if you're doing your proper maintenance.) The GLs have a more elaborate separator and reservoir. I believe the bottle is intended to help separate the oil vapor and return it to the crankcase.
I hope it doesn't vent directly to atmosphere, or you're sucking in dust and contaminating your oil.
If you have hoses, but no collector, you're leaving a trail of oil drips somewhere.
If you have hoses, but no collector, you're leaving a trail of oil drips somewhere.
where are you supposed to run it to with murray carbs?I hope it doesn't vent directly to atmosphere, or you're sucking in dust and contaminating your oil.
If you have hoses, but no collector, you're leaving a trail of oil drips somewhere.
A filtered catchcan/separator might just work...
You can buy suitable pod filters for the application.
You can buy suitable pod filters for the application.
i dont think the average schmoe who buys his kit acutally routes the crankcase vent to the suitable placeA filtered catchcan/separator might just work...
You can buy suitable pod filters for the application.
You're likely right.
Murray has suggested a setup that places the end of the breather against the {carb} pod filter so that the engine will rebreathe the resulting fumes.
I prefer a proper breather separator.
My thingy uses one that has drains with caps that is drained at service per the factory item.
It's a labrynth type to maximise surface area for condensation to take place. Made from PVC pipe and capd.
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Murray has suggested a setup that places the end of the breather against the {carb} pod filter so that the engine will rebreathe the resulting fumes.
I prefer a proper breather separator.
My thingy uses one that has drains with caps that is drained at service per the factory item.
It's a labrynth type to maximise surface area for condensation to take place. Made from PVC pipe and capd.
.
I did. Get a long hose and put a small filter on the end of it. Route the hose between the "V". It's so long that oil vapor will never make it to the filter, but that doesn't keep the engine from breathing properly.i dont think the average schmoe who buys his kit acutally routes the crankcase vent to the suitable place
Charles.
I've seen designs using a T-connector. Up to a small pod filter, as Charles described. Down to a capped tube extending past the swing arm pivot, similar to the stock airbox drains. It's long enough to function as a reservoir, if it's emptied frequently.
question--
are the 650 headers different than the 500, or can i reuse my 500 headers?
are the 650 headers different than the 500, or can i reuse my 500 headers?
500cc headers have a smaller internal diameter and will choke the 650 motor. The 650 headers are also longer to accommodate the extra height of the cylinder heads. While you can use 500 headers, you will be down on power (I verified this by accident) and your collector will point downwards at the back, causing your mufflers to not line up with their mounting brackets.
Charles.
Charles.
gotcha. what would a be a decent set of mufflers to use? I currently have emgos on my cx500, and i think theyd be a bit restrictive as well for the 650500cc headers have a smaller internal diameter and will choke the 650 motor. The 650 headers are also longer to accommodate the extra height of the cylinder heads. While you can use 500 headers, you will be down on power (I verified this by accident) and your collector will point downwards at the back, causing your mufflers to not line up with their mounting brackets.
Charles.
41 - 60 of 93 Posts
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