1990 ZZR250 issues. Help!

**Jeff Sichoe** · 13th February 2013, 11:31

Hope you get the problem sorted dude, maybe check the Technical / Bike mechanics sub forums for more help?

Sometimes the monkeys get a bit excited here in 'General Bike Ravings'!

**bogan** · 13th February 2013, 11:42

Originally Posted by Boodge1993

Thanks so much for all your help!! I did some work on it last night, carbs are off again.. Haha the floats are all good im going to adjust the mixture screw while its off and also get rid of the pods and get the original air box,
thanks again for all your help

I think ducatilover has covered the carb stuff pretty comprehensively, just be aware it could be a top end or compression issue as well, but apart from doing the valve clearance fixing that is harder, so start with the carbs is the best plan.

Also, it makes it easier for us to internet diagnose if the problems, changes and effects are set out clearly, line by line is probably a good way of doing that. Also pictures, and include anything that you may not think are relevant; good to see you're a quick learner and have noticed a few things around here that aren't relevant

**Boodge1993** · 13th February 2013, 11:51

Yeah thanks fellas, ive got carbs off now as i've said and yeah its just hard cause ive only got my phone for the net atthe moment so makes it harder haha, but all is good getting a manual and doin valve set and going to check compression so fingers crossed

**Akzle** · 13th February 2013, 16:15

Originally Posted by Boodge1993

but all is good getting a manual and doin valve set and going to check compression so fingers crossed

so you're going to solve your own problem, with the solution provided you by the first two responses you got

fucken 'strayan.

**ducatilover** · 13th February 2013, 16:42

Originally Posted by bogan

I think ducatilover has covered the carb stuff pretty comprehensively, just be aware it could be a top end or compression issue as well, but apart from doing the valve clearance fixing that is harder, so start with the carbs is the best plan.

This is actually a possibility, they'll destroy valves and seats when run lean (pods/zorst) just like the 500 twins do

Or it's just because it's a ZZR

**Boodge1993** · 13th February 2013, 20:05

Got a question guy's the coasting enricher, what does it do?
I pulled it apart and the spring was all good but, there was what looked like rust on the rubber and the metal part in it.
Also the metal (plunger looking thing) doesnt move is it supposed to?
Cheers guys again thanks for all the help!!
P.s still trying to find a manual from motorbike shops, hahaha

**ducatilover** · 13th February 2013, 20:15

http://faq.ninja250.org/wiki/How_a_c...arbs_explained this may be of some use to you

**Boodge1993** · 13th February 2013, 20:44

Ahhhh yes!!!! Awesome!! Thanks so much ducatilover!!! Your awesome thanks soo much man!!!

**gammaguy** · 14th February 2013, 02:29

Originally Posted by Boodge1993

Cheers unstuck and yea ive only had the bike 2 days so i was just trying to get an opinion, thanks for the stupid comments you first two idiots theres always those keyboard warriors.

So getting a manual is a stupid idea?

**Banditbandit** · 14th February 2013, 08:35

Originally Posted by Boodge1993

Your a dick mate... He was selling it for $500 wake up to yourself aye thought people knew what they're doing on here not being tough cunts go find something constructive to do mate. Fuck me everywhere there is wankers like you sitting at a keyboard being tough ruins everything only 2 decent people posted on here aye.

You know nothing about me idiot ...

You were the one who said the seller got ripped off ... if you had said "I got a good deal" I would have said "congratulations - good deal"

Your atittude sucks ... (not to mention your level of literacy)

**Akzle** · 14th February 2013, 16:58

Originally Posted by Banditbandit

Your atittude sucks ... (not to mention your level of literacy)

and trust me, coming from that cat hugging hippy nigra, dem's fightin' words'...

**Boodge1993** · 16th February 2013, 11:22

I got it to idle guys runs brilliant but its really slow to return to idle any ideas?..

**Akzle** · 16th February 2013, 11:49

Originally Posted by Boodge1993

I got it to idle guys runs brilliant but its really slow to return to idle any ideas?..

vacuum slide springs....

unlubed throttle cable...

**Boodge1993** · 16th February 2013, 13:24

Thanks akzle appreciate it!
How do i check if the spring is still okay?

**Akzle** · 16th February 2013, 14:43

Originally Posted by Boodge1993

Thanks akzle appreciate it!
How do i check if the spring is still okay?

take the top off the carbs, there'll be a free length specified in the manual you bought in step 1. if it's shorter than that, it's fucked.

probably about 1ft, if it's shorter, stretch it. (ideally, replace it)

also take this opportunity to check the rubber diaphragms...

who the phuck invented the word diaphragms. that shit's just stupid. die-a-frag-imms. fucking english.

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