Nice bike. I built a monster single back in the 1980's, was a blast on the racetrack. Ran much higher compression, way oversized valves and a very hot cam. Would not idle below 1800 rpm, but did power wheelies all the way to 4th gear!
I have one SZR660 I just repaired for road, and another one I want to use only on tracks, so very interested in watching this video, great job well done ! one first question : you replace the radiator, but does it came from another bike (which one ?), or is it something more specific ?
We got the camshaft some years ago via a contact. Not sure if it’s still available anywhere, but there will be others. Let me get Jason to answer this, he knows stuff!
Hi, the engines between the yamaha SZR 660 and Raptor 660 quad from around 2005 share the same engine. To find the parts you have to get them from America and search for raptor 660 parts. There are two main companies that make performance cams for this engine which is megacycle and hotcams. Gordons cam is made by kentcams and ive been told it is very similar to the megacycle stage 3 cam.
@@notagunfreak8146 If you get a stage 3 cam I would advise getting the valve guides replaced with the kibblewhite ones. Gives the underside of the valve spring top a could extra mm clearance. Would probably be sensible to get the kibblewhite light valve kit too. For stage 1/2 cams you should be relativly safe with the standard valve gear.
Hello. Please tell me, I bought the same motorcycle a week ago, but I just can’t start it. I don’t know what the reason is, I’ve already tried everything. Maybe you can tell me what the reasons might be or have you encountered the same problem? Yamaha SZR 660 year 2000
Amazingly the engine in this bike had sat unused outdoors for nearly 10 years. Fresh fuel and a decent battery got it going almost immediately. If you have a spark it’s most likely a fuel issue obviously. The twin carbs can be troublesome like any others.
@@rustynuts82 it has a spark, yesterday I started it and it ran for a bit and it warmed up and stalled and then I couldn’t start it again, when it cooled down it barely started and stalled again😤. took out the carburetor, cleaned it, washed it😩😥 and when it starts, it only works on choke🤷♂️😭
@@oleksandrivanchuk4053 if it needs choke its lacking fuel, the jets must be blocked or a passageway inside the carb. Full carb strip and ultrasonic clean might be needed. I think the carbs are CV with diaphragms that can split too. If it hasn’t been run for a while the carbs will need a proper going through, modern fuel causes issues if left.
@@rustynuts82 thanks for your help. I cleaned the entire carburetor and flushed everything. And it started to launch and work great. Just in case, I also changed the fuel pump and all the problems were solved. So thanks for the advice!
Hi, i am about to build one of these for supermono racing. Is there anyway to get in touch please. I want some advice on things like moving the oil tank. It would be greatly appreciated. Cheers
@@rustynuts82 thanks, love the blue full fairing and small seat unit. I would love to know what they are also details on moving the oil tank Looking forward to this
Hi, I'm afraid it isn't an off the peg exhaust system on Gordon. It's a custom built 2 into 1 exhaust. If performance is what you are after then a twin exhaust system is best. I believe only termignoni made a system for the SZR660 but that is out of production. My best advice if you are really keen, would be to look for a slip-on end can of the correct sort of dimensions and have a link pipe made. To join the existing down pipe to a slip-on of your choosing.
You are correct, stock front is upside down forks with single disc. The front end is FZR400RR on Gordon. Jason will hopefully chime in with his far greater knowledge, its his race bike!
@@rustynuts82 i have just bought one to use in supermono clubman this year. Got lots to do and quite quickly.. Would love some tips. What shock works well on them, also i have seen an rgv fairing on one, at least i think. What are your recommendations? Is there any contact for jason please. Looking forward to getting into the build
@@kennethmonkskm the standard SZR puts out a lowly 43hp, after the rebuild the bike was put on the dyno and made 65hp and 71 Nm at the wheel. With the low weight its pretty rapid now.
A lot getting it done. It was expensive enough with Jason doing his own spannering. I can get Jason to give you a breakdown of parts and cost if you like. The cam is now obsolete I think, although something similar must be around.
@@rustynuts82 is there any way I can contact him directly? I'd gladly pay for his time! I rebuilt my xtz660 engine 80,000 miles ago but now she is due a top end rebuild and bottom end inspection! She has now covered 170,000 I've owned this bike for nearly 20 years! But would be interesting to see if I could give her a bit more life!
@kennethmonkskm Hi yes, its my son Jason. He is back home having just finished a degree in motorcycle engineering! He will gladly talk you through it all.
Nice bike. I built a monster single back in the 1980's, was a blast on the racetrack. Ran much higher compression, way oversized valves and a very hot cam. Would not idle below 1800 rpm, but did power wheelies all the way to 4th gear!
Love it! And what a lovely narrator ☺️🤪
That’s looking fast at the end!!!! 💨 💨 💨
Whow, high mountains and yummy food!
Might be a different video, but thanks for the comment mum 😂
'Christ' XD sounds brilliant after the rebuild.
Goes like hell too
nice job! next time try using an old cloth to jam the gear instead of screw driver, It work for me tho :)
I’ll give that a go….thanks
@@rustynuts82 keep up the good work brother, From Thailand
I have one SZR660 I just repaired for road, and another one I want to use only on tracks, so very interested in watching this video, great job well done !
one first question : you replace the radiator, but does it came from another bike (which one ?), or is it something more specific ?
Thanks, The rad was made as a bespoke item to fit in that position.
@@rustynuts82 thank you, I have no idea how much it could cost
Where can I buy a aftermarket camshaft, cant find them anywhere.
Do you have a link or website name where I can get the valve's?
We got the camshaft some years ago via a contact. Not sure if it’s still available anywhere, but there will be others. Let me get Jason to answer this, he knows stuff!
@@rustynuts82 Thank you!
Hi, the engines between the yamaha SZR 660 and Raptor 660 quad from around 2005 share the same engine.
To find the parts you have to get them from America and search for raptor 660 parts. There are two main companies that make performance cams for this engine which is megacycle and hotcams. Gordons cam is made by kentcams and ive been told it is very similar to the megacycle stage 3 cam.
@@notagunfreak8146 If you get a stage 3 cam I would advise getting the valve guides replaced with the kibblewhite ones. Gives the underside of the valve spring top a could extra mm clearance. Would probably be sensible to get the kibblewhite light valve kit too.
For stage 1/2 cams you should be relativly safe with the standard valve gear.
@jasonstubbs3393 thank you!
Hello. Please tell me, I bought the same motorcycle a week ago, but I just can’t start it. I don’t know what the reason is, I’ve already tried everything. Maybe you can tell me what the reasons might be or have you encountered the same problem?
Yamaha SZR 660
year 2000
Amazingly the engine in this bike had sat unused outdoors for nearly 10 years. Fresh fuel and a decent battery got it going almost immediately. If you have a spark it’s most likely a fuel issue obviously. The twin carbs can be troublesome like any others.
@@rustynuts82 it has a spark, yesterday I started it and it ran for a bit and it warmed up and stalled and then I couldn’t start it again, when it cooled down it barely started and stalled again😤. took out the carburetor, cleaned it, washed it😩😥 and when it starts, it only works on choke🤷♂️😭
@@oleksandrivanchuk4053 if it needs choke its lacking fuel, the jets must be blocked or a passageway inside the carb. Full carb strip and ultrasonic clean might be needed. I think the carbs are CV with diaphragms that can split too. If it hasn’t been run for a while the carbs will need a proper going through, modern fuel causes issues if left.
@@rustynuts82 Thank you very much for your help, I'll try to do it. As you said and I will write the result later when I do it.
@@rustynuts82 thanks for your help. I cleaned the entire carburetor and flushed everything. And it started to launch and work great. Just in case, I also changed the fuel pump and all the problems were solved. So thanks for the advice!
Nice! What's the wet weight of it? Did you install better wheels?
The wheels are FZR400RR as are the forks. Weight not sure, not heavy though!
@@rustynuts82 Thanks! Quick reaction time, much appreciated! A stock SZR weighs 159kg "they" say... was wondering how much you managed to remove
Ok, now I need to weigh it……be in touch👍
@@rustynuts82 That's dry weight though, add 10,5kg for 14L of fuel
Apparently its 130kg dry. Jason has weighed it!
Hi, i am about to build one of these for supermono racing. Is there anyway to get in touch please. I want some advice on things like moving the oil tank. It would be greatly appreciated. Cheers
Have a look at this blog. It has most of the history of the bike documented in it. It may be helpful.
@@jasonstubbs3393 Which blog?
@sundownsolutions2 www.mike-edwards.net/Gordon/
@@rustynuts82 thanks, love the blue full fairing and small seat unit. I would love to know what they are
also details on moving the oil tank
Looking forward to this
@@rustynuts82 thanks. Have you any idea what that blue fairing is. Does anyone have spikes email? The one on the blog doesnt work anymore. Cheers
I also have an SZR and i'm looking to change out the standard exhaust muffler. What kind of exhaust does that bike have?
I will get jason to answer this
Hi, I'm afraid it isn't an off the peg exhaust system on Gordon. It's a custom built 2 into 1 exhaust.
If performance is what you are after then a twin exhaust system is best.
I believe only termignoni made a system for the SZR660 but that is out of production.
My best advice if you are really keen, would be to look for a slip-on end can of the correct sort of dimensions and have a link pipe made. To join the existing down pipe to a slip-on of your choosing.
@@jasonstubbs3393 Thanks for the info man I appreciate it👍
what front end is that? i thought they were USD single disk std
You are correct, stock front is upside down forks with single disc. The front end is FZR400RR on Gordon. Jason will hopefully chime in with his far greater knowledge, its his race bike!
@@rustynuts82 i have just bought one to use in supermono clubman this year. Got lots to do and quite quickly.. Would love some tips. What shock works well on them, also i have seen an rgv fairing on one, at least i think. What are your recommendations? Is there any contact for jason please. Looking forward to getting into the build
Is this the same engine as the xtz660?
Yes, same five valve lump
What would be the increase in hp n torque doing these mods? Rough guestimation?
@@kennethmonkskm the standard SZR puts out a lowly 43hp, after the rebuild the bike was put on the dyno and made 65hp and 71 Nm at the wheel. With the low weight its pretty rapid now.
Where can i find rear fairing like this?
It was made some years ago by a specialist company based in France called BUB composites. Here is a link. www.bubcomposites.com/660-szr
How much would an upgrade like that cost?
A lot getting it done. It was expensive enough with Jason doing his own spannering. I can get Jason to give you a breakdown of parts and cost if you like. The cam is now obsolete I think, although something similar must be around.
@@rustynuts82 is there any way I can contact him directly? I'd gladly pay for his time! I rebuilt my xtz660 engine 80,000 miles ago but now she is due a top end rebuild and bottom end inspection! She has now covered 170,000 I've owned this bike for nearly 20 years!
But would be interesting to see if I could give her a bit more life!
@kennethmonkskm Hi yes, its my son Jason. He is back home having just finished a degree in motorcycle engineering! He will gladly talk you through it all.
Dyno? HP? Carb mods? THX!
The carbs are twin Kiehen FCR 39. Dyno to confirm HP at some point, we reckon around 70HP rear wheel.
Just been to the Dyno 71.6hp at crank, 65 at wheel.
It was running lean the dyno so it'll go back on soon now the bigger jets have arrived 👌
@@rustynuts82do twin carbs flow efficiently to a single cylinder? Was the removal of the fuel injection system difficult?
@pedshed5132 the SZR was a twin carb bike as standard. The carbs on it now are very special race carbs.
👍