trebor Posted October 11, 2018 Share Posted October 11, 2018 Hello chaps I have a old Laser 70 with a Super tigre carb that has a bent spray bar tube. Tried looking on line but I have no details on this carb like a Model type, the only thing I can tell you the needle jet is 5/64" and I only need the spraybar tube Quote Link to comment Share on other sites More sharing options...
Engine Doctor Posted October 11, 2018 Share Posted October 11, 2018 You will be very lucky to find one of those as ST is not ,as far as I am aware ,still trading. You may find some New old stock lurking in a shop somewhere . Suggest you ask John from Laser engines what carbs they now use or they can help . Quote Link to comment Share on other sites More sharing options...
trebor Posted October 11, 2018 Author Share Posted October 11, 2018 Cheers, I have already asked Jon I don't want to buy new replacement carb as this one was working well till I dropped it. Maybe some one has a part lurking about (fingers crossed) Quote Link to comment Share on other sites More sharing options...
Martin Harris - Moderator Posted October 11, 2018 Share Posted October 11, 2018 Is it beyond straightening? If the aluminium part is bent, you can anneal it by coating it with soap and gently heating it until the soap turns black. Let it cool and it should bend without cracking. After a few days the aluminium will age harden back to its normal condition. Sounds like you have nothing to lose by trying it! Quote Link to comment Share on other sites More sharing options...
trebor Posted October 11, 2018 Author Share Posted October 11, 2018 Its not alloy, only the good stuff "Brass" The needle came out but wont go back in Quote Link to comment Share on other sites More sharing options...
Peter Christy Posted October 11, 2018 Share Posted October 11, 2018 Have you tried Dave Wilshere at Motors & Rotors? **LINK** Dave's dad, Mick, used to be the Super-Tigre importer, and I'd be surprised if Dave didn't have some bits kicking around somewhere - even if second hand! -- Pete Quote Link to comment Share on other sites More sharing options...
trebor Posted October 11, 2018 Author Share Posted October 11, 2018 Thanks but Jon at Lasers put me in touch with Motor & rotors, they had a look and as yet I haven't had a reply saying they found one. Quote Link to comment Share on other sites More sharing options...
Jonathan W Posted October 11, 2018 Share Posted October 11, 2018 If you heat it up to dull red with a blow lamp and allow it to cool, that will anneal it and you can have a go at straightening it. The material will remian soft afterwards though, so then more liable to further accidental bending. The danger of trying to straighten it without annealing is that it might simply snap off, depending on the particular grade and hardness of the brass. If you have access to a lathe, then it is possible to hold it in the chuck and rotate it to check for straightness. You will also be more easily able to judge the best direction to give it a gentle knock to straighten it. Stick it in the post and I can do if for you, if you are willing to wait a while and at you own risk of course. Quote Link to comment Share on other sites More sharing options...
extra slim Posted October 11, 2018 Share Posted October 11, 2018 at virtually every swap meet I've been to, there have always been a few ST carbs knocking about at the bottom of a box of bits of engines usually under the bench, mostly missing the needle as it was protruding and prone to being snapped. Shouldnt be that hard to get one. A few come up on ebay quite regulary. Quote Link to comment Share on other sites More sharing options...
trebor Posted October 11, 2018 Author Share Posted October 11, 2018 There is a swapmeet near me next month so I will try that Quote Link to comment Share on other sites More sharing options...
Engine Doctor Posted October 11, 2018 Share Posted October 11, 2018 What is the spigot size of the carb and internal bore ? I have a few new carbs in the spares box that might get you running if you can't find the NVA Quote Link to comment Share on other sites More sharing options...
trebor Posted October 11, 2018 Author Share Posted October 11, 2018 So far I cant shift the engine intake tube but the inside dia air intake on the carb measures 7.2mm or 9/32" ish !! Quote Link to comment Share on other sites More sharing options...
Engine Doctor Posted October 25, 2018 Share Posted October 25, 2018 Have looked through my spares and can't find the part you need . As the bend is minimal have you tried straightening it ? Quote Link to comment Share on other sites More sharing options...
trebor Posted October 26, 2018 Author Share Posted October 26, 2018 Thanks for looking, I have had a go straightening it without much success. If I continue with it the threads are going to suffer Quote Link to comment Share on other sites More sharing options...
Jimbo565 Posted October 27, 2018 Share Posted October 27, 2018 f:0">http://www.ebay.co.uk/itm/Super-Tigre-G21-40-carburettor/312279959020?hash=item48b55605ec:g:Q~YAAOSw2YZb0W5r:rk:5f:0 Trebor any good. Quote Link to comment Share on other sites More sharing options...
trebor Posted October 27, 2018 Author Share Posted October 27, 2018 It's not quite the same, early November bring and buy is getting closer I will take my vernier guage along to double check. Quote Link to comment Share on other sites More sharing options...
Denis Watkins Posted January 17, 2019 Share Posted January 17, 2019 There is an ST Carb on eBay right now To fit 11mm throat 7mm top intake, £20 There you go, am at a friends, sorry for delay https://www.ebay.co.uk/itm/SUPER-TIGRE-CARBURETTOR/292919701099?_trksid=p2485497.m4902.l9144&redirect=mobile Edited By Denis Watkins on 17/01/2019 19:33:36 Quote Link to comment Share on other sites More sharing options...
trebor Posted January 17, 2019 Author Share Posted January 17, 2019 Have you got a link or what was the search heading you had ? Quote Link to comment Share on other sites More sharing options...
Jonathan W Posted January 17, 2019 Share Posted January 17, 2019 Firstly, that is the older type ST carb with a different design of needle and spraybar assembly which is not compatible with trebor's carb.. Secondly, it's me who has already placed a bid! Quote Link to comment Share on other sites More sharing options...
Denis Watkins Posted January 17, 2019 Share Posted January 17, 2019 Posted by Jonathan W on 17/01/2019 20:07:33: Firstly, that is the older type ST carb with a different design of needle and spraybar assembly which is not compatible with trebor's carb.. Secondly, it's me who has already placed a bid! Firstly ha ha ha And secondly, I didn't want trebor to strip it down, but to fit the whole carb He is a nice man, you buy it and give it him. ! Seriously, if I see a carb at the shows I will send it to him Edited By Denis Watkins on 17/01/2019 20:13:35 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.