My Suzi T500 Project *It's Alive Video*

My Suzi T500 Project (New Video)

Have you done a leak down test on the motor yet? I know with our triples, with the exhaust and intake sealed, you should be able to hold 6psi of pressure and vacuum. If you have lab seals, you'll have to do both at the same time.
 
Re: My Suzi T500 Project (New Video)

Walms said:
It seems to be hanging on to the rpm when you let off the throttle... an Air leak or too lean maybe?
+1 on this. The idle tells the story.
 
Re: My Suzi T500 Project (New Video)

Ok great feedback! It only started with the revs not going down since I put the small pilots in. I will research "leak down test" as no, I have not done it. What are lab seals?

Going to get a video of me riding the bike when my son comes home on leave this week :)
 
Re: My Suzi T500 Project (New Video)

Labyrinth seal on the crank. Has nothing to do with the david bowie movie.
 
Re: Re: My Suzi T500 Project (New Video)

johnu said:
Ok great feedback! It only started with the revs not going down since I put the small pilots in. I will research "leak down test" as no, I have not done it. What are lab seals?

Going to get a video of me riding the bike when my son comes home on leave this week :)

Before leak down, have you tested the intake components for leaks like I suggested earlier? It takes 2 min.

A couple ways; while running you can spray starting aerosol between the carbs and the engine and see if it Idles up. If it does you have a leak.

You can use water or break cleaner instead in which case it will idle down as the sign.

Even though it more dangerous I find the starter fluid is more sensitive in telling me there are intake leaks vs the others.
 
Re: My Suzi T500 Project (New Video)

Did the spray test with water and there are no leaks on the intakes, not brave enough to use the starter fluid ;) I fitted all new crank seals when I built the motor up, I know how important this is (i use to change seals after every race weekend on my race engines). I will do the leak down test as obviously there is something wrong but I think maybe I just went too low with the pilots.
 
My Suzi T500 Project (New Video)


johnu said:
I just went too low with the pilots.

Here's a short video of my bike on first start up. It's dead rich, probably too rich to ride but at least you can listen to how the rpm drops quickly.

http://youtu.be/PgwQy-SUAOc
 
Re: Re: My Suzi T500 Project (New Video)

Walms said:
Here's a short video of my bike on first start up. It's dead rich, probably too rich to ride but at least you can listen to how the rpm drops quickly.

http://youtu.be/PgwQy-SUAOc

Starting with one kick I don't think that's super rich especially if it was cold. The air circuit never made a difference with that jetting? I would be inclined to switch to those pilots and lean the needle 2 clips and go for a test drive.
 
My Suzi T500 Project (New Video)

Yup, it was... ;) like having the choke on it was so rich.
Confirmed as soon as she went on her maiden voyage.
 
Re: My Suzi T500 Project (New Video)

Walms and JohnU are both correct. Walms bike was way rich and JohnU's bike is NOW too lean at idle with those 22.5s where it was too rich before with larger pilot jets.

So it needs slightly larger pilots but probably needs to be leaner as it comes off idle. That suggests a larger cutaway might clean that up. I also wonder if the pilot air jet system is clogged or maybe the air jet is too small to have any effect. I think it's a drilling in those carbs and it's worth checking.
 
Re: My Suzi T500 Project (New Video)

HollywoodMX said:
Shit I'm confused. I didn't look to who I was responding to.

Your confused??? Join the club haha ;D
 
Re: My Suzi T500 Project (New Video)

teazer said:
Walms and JohnU are both correct. Walms bike was way rich and JohnU's bike is NOW too lean at idle with those 22.5s where it was too rich before with larger pilot jets.

So it needs slightly larger pilots but probably needs to be leaner as it comes off idle. That suggests a larger cutaway might clean that up. I also wonder if the pilot air jet system is clogged or maybe the air jet is too small to have any effect. I think it's a drilling in those carbs and it's worth checking.

Going to take the carbs off today AGAIN!! and check them AGAIN for any blockages ;)
 
Re: My Suzi T500 Project (New Video)

John,

The situation you had earlier appeared to be rich at idle or was it just off idle as you started to open it up? I don't have a full picture of what the symptoms were at different revs/throttle settings with those different pilot jets and air screw settings.

In other words, if you can get the idle OK with say a 30 pilot jet but it bogs as the slides are lifted to say 1/4 open then it is likely to be an issue of transition from the pilot circuit to the main circuit and that's where the cutaway comes in to play. If it's wet and soggy at say 1/4 to 1/2 it's more likely to be the needle jet.

Easy check on the air circuit would be to remove the pilot jet , loosen the screw and spray carb cleaner down teh air inlet. If it sprays back in your eyes, you know it's blocked (and you need to see an eye specialist) If it sprays out of teh pilot jet holes (up or down) it's probably not a problem.
 
Re: My Suzi T500 Project (New Video)

I would put in the 35s or whatever you have close to. I would lean the needle 2 clips.

Start the bike. Let it warm up. Test the air screw. If no notable difference, Then with one hand hold the throttle to around 2000 rpm steadily as possible , with the other hand adjust the air screw and see if there is a difference in it idling up and down then. I would also take it for a quick boot to test the needle change.
 
Re: My Suzi T500 Project (New Video)

Ok guys, thanks to all of you that voted for my bike this month!

Everything will be at a standstill for quite a while as I just unexpectedly had to have open heart surgery!! I have had a pacemaker for the last ten years (when i was 40) because I have a very low resting heart rate (about 40 during the day but dipping in the 20's at night) well last week they removed the pacemaker as it was giving me grief but when the took the wire out it tore the wall of my heart so they had to do open heart surgery to repair it. I am very fit ( i can out cycle most guys half my age) have no clogged arteries or bad valves so hopefully I can recover quickly :)

Probably going to be about six weeks before I can fire the bike up again :(
 
Re: My Suzi T500 Project (New Video)

Wow, sorry to hear John, all the best on a quick recovery!
 
Re: My Suzi T500 Project (New Video)

Some guys will do anything to get out of working. Get better man.
 
Re: My Suzi T500 Project (New Video)

johnu said:
Ok guys, thanks to all of you that voted for my bike this month!

Everything will be at a standstill for quite a while as I just unexpectedly had to have open heart surgery!! I have had a pacemaker for the last ten years (when i was 40) because I have a very low resting heart rate (about 40 during the day but dipping in the 20's at night) well last week they removed the pacemaker as it was giving me grief but when the took the wire out it tore the wall of my heart so they had to do open heart surgery to repair it. I am very fit ( i can out cycle most guys half my age) have no clogged arteries or bad valves so hopefully I can recover quickly :)

Probably going to be about six weeks before I can fire the bike up again :(

I hope you recover quickly. Don't worry about the bike, it will be there when you get better. Taking care of yourself is priority numero uno.
 
Re: My Suzi T500 Project (New Video)

I hope that you get recover soon. From what I see here, you seem like a really good dude.
 
Back
Top Bottom