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Won't go above 3500RPM

  • Thread starter Thread starter Triam
  • Start date Start date
tkent02 said:
I would have sent him a good one if he had asked, he didn't.
Click to expand...

he's in the classifieds looking to buy main jets.
if you have a good box he needs to do what ever he can to get it from you.
all the air boxes and factory pipes from years ago hit the dumpers at any performance type shop...gone forever.
who knew...
 
Well, I finally have a bit of money so I'm returning to my bike. I've just ordered an airbox off ebay, and I have a question for you guys:

I have an aftermarket exhaust already, so I'll need to tune the carb anyway. In that case should I buy the K & N filter that fits the box or should I stick with one of the original filters? Keep in mind that I'll have to buy a filter either way.
 
Stock or K&N inside the airbox won't matter much. You should only have to bump the main one step or so and tune the needle and pilot screws. Come to think of it, you may as well stay stock filter since that will further minimize the jetting change needs.
 
hi Triam,

I keep getting my password being refused hence I haven't seen your thread before but it seems that there are a few of us with exactly same problem and we are all listing in various areas of the site and surprisingly getting different replies sometime from the same person?

My earlier post is reproduced below - having done everything that has been suggested so far I still find the same problem so I am totally peeved with the situation and will later today be putting what was a bloody great and totally reliable machine on e bay at a fraction of what it is worth.......was looking at the site today in the hope of further inspiration but am really still totally confused.

I do hope you solve your situation it seems that guys across the pond have far more access to parts and information than we do here in the UK.

All the best

Matt

Matt's original postings

Default 1982 Suzuki GS550E - Ideas Please
Both me and my local Jap bike garage in the UK are completely bemused by what is happening with my 82 Suzuki GS550E.

Bike was running fine but suffered a suspected pilot jet fuel blockagewhen I was leading a rememberence day club run -limped home carb's removed en masse stripped and noticed very slight evidence of fuel pipe rubber in bottom of float chamber.Bank of four carb's taken to garage for ultrasonic cleaning new fuel pipes, gaskets etc float heights checked and float chamber levels all set up as per specifications.

Bike started on button and quickly settled to 1000rpm tick over with instant response on throttle right through rev band both steady and bliping throttle sounded really great! Took her out on the road and pulls away great until 4000 revs (50 mph in top) and then nothing won't rev under load in any gear above 4000 revs. Stripped again and fuel system totally rechecked all spot on - new plugs fitted just in case and I noticed left hand pot running correct pots 2,3,4 rich, but I had been trying to ease more revs by opening throttle etc..

Also tried playing with choke at 4000 rpm makes no difference whatsoever doesn't lift or splutter - it is the 82 model so has transistorised ignition, but as I said starts on the button and really sharp and instant response both in neutral and in all gearsbut only up to 4000 rpm / 50mph.

Really is a head scratcher anyone any ideas - have looked for a specific Suzuki site like yours in UK but none exist that cater for the older machines.
So hope someone out there can offer me some help and guidance.

Matt
 
Matt - where in the UK are you? Just asking because I have carbs here - some rebuilt, some that were working when I removed them. If you happened to be anywhere near me you would be welcome to try swapping some carbs around in an attempt to isolate the issue.
 
mattb31daytona said:
hi Triam,

I keep getting my password being refused hence I haven't seen your thread before but it seems that there are a few of us with exactly same problem and we are all listing in various areas of the site and surprisingly getting different replies sometime from the same person?

My earlier post is reproduced below - having done everything that has been suggested so far I still find the same problem so I am totally peeved with the situation and will later today be putting what was a bloody great and totally reliable machine on e bay at a fraction of what it is worth.......was looking at the site today in the hope of further inspiration but am really still totally confused.

I do hope you solve your situation it seems that guys across the pond have far more access to parts and information than we do here in the UK.

All the best

Matt
Click to expand...

Hey thanks. I sure hope you get it fixed. It's a shame to sell a bike when you know it has potential.
 
Well, as was assumed, the bike had too big of a main jet. I took it from a 130 to a 115. I took it out for a ride in the 32 degree weather we have now and it runs well, but it's now popping instead of bogging down so I guess I need to shoot for about the 120-125 main-jet range. I'm pretty confident that I'll have it running perfectly once it's decent riding weather.
 
Don't want to mislead you in any way. But I have over came similar problems, Even though the connections at the coils were tight and clean, Tried jetting all over the map. Finally.We at the shop after then always cleaned and placed a dab of solder where the wires connected to the coils.100% connection with no resistance. Seemed to help over 50% or more of the machines we tried it on. Go figure lol. I pulled out alota hair diagnosing that one. Can't say it will fix it but sure won't hurt it either. Good luck.
 
So, I know you've all heard this story before, but I finally put an airbox on my bike with the stock jetting and it runs amazing. Just thought I'd let you guys know.
I'm finally going to be able to drive it up to school with me.
 
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