FZX250 Zeal Speed issue

Could be letting to much or not enough through return to stock mate best bet

 

It certainly could it could also be leaning out due to no airbox or have manifold leaks, these inline 4s are really finicky the slightest wrong setting ruins them.

 

But in saying going back to stock (just really the air filter) the issue was still there anyway :/

 

All right I'll save up some dosh go up to the stock Front 17 and Rear 57 with 428-130 chain perhaps and check those carby needles and see where that takes me, would I even be better off just keeping with sprockets and chains I have and just change the sizing of one of the sprockets?

 

It might be just me but those figures don't seem too bad for gearing. I think the pods are masking the issue. I would grab a new air filter and close up the airbox. Then with the bike running spray carb cleaner or start ya bastard around the base of the carbs, the carby boots and anywhere the airbox seals, if the revs rise you have an air leak, which if affected by carb cleaner at idle then at road speed under load will be making the bike run insanely lean.

 

Haha yer I have this debate with ppl company's spent millions on r&d to get a bike going good for all cars and bikes and ppl do some weird stuff changing it I see the point if u r racing as u r trying to get peak performance for small time not a daily ride
If needles have washers under them and arnt meant to take them out or clip position I'm not fimiliar with the zeal

 

Would imagine the needle set up should be the same as the FZR wouldn't they?

Unfortunately GC doesn't have the FZX250 in their list using the Fizzer 250 as a base model to work from seeing as they're similar

 

Dunno mate

 

This is roughly what I can come up with using GC

Current Setup


What I'm thinking of going to

The number tell me it should up it's speed a little, obviously gonna check those carbys again cause it does really feel like a fuel issue, plugs shouldn't be the issue as they're barely 2000kms old, probably wouldnt hurt to check my leads though

 

It might be just me but those figures don't seem too bad for gearing. I think the pods are masking the issue. I would grab a new air filter and close up the airbox. Then with the bike running spray carb cleaner or start ya bastard around the base of the carbs, the carby boots and anywhere the airbox seals, if the if the revs rise you have an air leak, which if affected by carb cleaner at idle then at road speed under load will be making the bike run insanely lean.

 

Cheers GI that makes a little bit of sense to me

 

do you mean spray carb cleaner where the air goes into carbs or down where it fits to engine?

 

Down where the carbs meet the engine and anywhere outside where the airbox should seal to the carbs, and the top part to the bottom, I'd put a sizeable wager that a leaky air intake is your problem.

 

these are the rubbers connecting carby to motor but there is no visible cracks on the inside of the rubbers at all.

 

I already have one hat to eat that's more then enough. Actually I might get my dog to fill in for me on that he seems to enjoy that kind of thing haha,

Ps @HiveFleetAbyss why don't you have the tachometer mounted permanently?