kimpybugalugs

The bike was running previously. It seems to have reasonable compression and initial fire up happens 1st or 2nd kick. As far as I know it has never had an engine strip. I have just removed all the autolube gear. I have blocked the inlet on the manifold where the autolube "injected" the oil so this is not sucking air. Carb looks to be original and untouched so maybe time for a clean and/or overhaul? I have just fitted a brand new kill button - i'll check to see it is not faulty. Thanks for your help.

Hi All Any pointers on the following problem greatly appreciated: I can start my TY and it'll run for a few seconds and then it kind of "fluffs out" (probably not a correct technical term). It'll start again after a few kicks and do the same again. Using or not using the choke seems to make no difference. Revving or not revving seems to make no difference. It still conks out after a few seconds. Thanks in advance for any help. Ian

Thanks for the info. The shrunk thing looks about right. Ian

The tidy up continues on my TY175. The male thread on the fuel cap is stripped. The female thread on the tank is fine. Anyone know of a shop selling replacement caps? Original or looking similar is fine? Cheers Ian

Thanks David. No humidity problems where I am and it'll get regular runs so synthetic will be fine. In the late 70s/early 80s I had some friends that ran their YZ80(F I think?) on Castrol R - lots of smoke but I loved the smell of that stuff. Anyway, at the moment I'm still thinking Castrol TTS at 50:1 (sorry mollygreen) but am still open to further advice, debate or comment. Cheers.

100:1 makes me nervous. Has anyone else used this Amsoil Saber Professional stuff? As for saving the environment - burning any fossil fuel is bad so leaving the oil out (as with 4 strokes) is still bad for the environment. Maybe we should park the motorbikes up and go bicycle trialing? I wouldn't have to worry about pre mix ratios either.

Yes I should've put Castrol TTS. Thanks for the info David and Kevin. It's interesting to get the different opinions - so far on this thread we have 33:1, 50:1 and 60:1. I am interested in the reasons people have picked a particular ratio. Was it recommendation? Personal experience? Shop advice? Something else? I think (at the moment) I'll go with 51.5:1 (probably 50:1 will be easier to measure) as it's mid way between 33:1 and 70:1 and these are the top and bottom of advice I've had so far. Any further comment, advice or debate greatly appreciated. Cheers.

In the process of converting my TY175 from autolube to premix I have had differing advice on pre mix ratio. Suggestions ranging from 40:1 to 70:1. It will be used in twin shock trials so mostly slow speed work in 1st and 2nd gear. I will run it on a synthetic oil (Castrol TT). I would like to know what ratio others have used and for how long? I'd like to avoid it blowing up but also would like to avoid it oiling up. Any advice/opinion/debate etc. greatly appreciated. Cheers.

Thanks again for all the info.

Thanks for the reply Tony. I have removed the pump and if I'm understanding you correctly it'll be o.k to leave the worm gear in situ.

I'm converting my TY175 to pre-mix. If I remove the Autolube pump do I have to block the hole on the end of the worm gear (attached to the crank I think?)? Is there anything else I need to watch out for? Any advice/tips/info etc greatly appreciated. Thanks.