discobandit Posted December 17, 2009 Posted December 17, 2009 The rear cylinder has stopped working? Checked for spark - Good The only way I can get the rear to run is to completely remove the pilot screw. I stripped and cleaned the carb down but no difference. Any ideas? Cheers Gary
Moderator drewpy Posted December 17, 2009 Moderator Posted December 17, 2009 got to be fuel, is there a smell of petrol in the bore? I know you said you cleaned it, but did you strip down the carb into parts and use an ultrasonic cleaner? this is the best way to ensure its clean. I hope you checked fuel flow first. drewps
discobandit Posted December 18, 2009 Author Posted December 18, 2009 Definately fuel getting through. It's as if there is a lack of air. With the pilot screw removed it fires with fuel dripping out of the hole but if I block it with my finger it dies????? Cheers Gary
Moderator drewpy Posted December 18, 2009 Moderator Posted December 18, 2009 maybe a blocked pilot air inlet?
discobandit Posted December 20, 2009 Author Posted December 20, 2009 Cheers Drewpy Next port of call. Gary
discobandit Posted December 27, 2009 Author Posted December 27, 2009 Had the carbs off today and checked all the jets and jet ways. All clear? Still not running on rear cylinder. Got good spark and compresion? Any help/ pointers/ where to check next greatly appreciated. Cheers Gary
Moderator drewpy Posted December 28, 2009 Moderator Posted December 28, 2009 did you take the all jets out and use carb cleaner?
discobandit Posted December 28, 2009 Author Posted December 28, 2009 did you take the all jets out and use carb cleaner? Yes. Sprayed down through each channel individually, all clear. However, tried again this morning and it has sprung an oil leak from somewhere at the rear???? Fine spray of engine oil that I will investigate over the next couple of days. I'm now thinking compression as a factor. Need to find the leak before I go any further. I'll keep you posted. Cheers Gary
discobandit Posted February 19, 2010 Author Posted February 19, 2010 OK! Cleaned carbs again, no joy. Sent to be ultrasonic cleaned, still no joy. Got a second hand set from ebay (XV1000) put them on, fired her up. Both cylinders popping away nicely and just to make sure burnt my finger on the exhaust. A bit of tuning this weekend and get the correct jets in. Not given up on the old carbs though. I'm determined to find out what the problem was. Thanks for the advice. Gary
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