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when the carb was rebuilt the pop off was just fizzing starting from about 24 psi. It did not run very well with 1.5 needle and seats and 55psi so im now at 2m needle and seats with shinny spring 18psi. This seems to be the best its been but aftr about 5 minutes it starts to miss. Were...

Topend rebuild - engine is miss firing Any ideas im really stuck

A recent rebuilt of the top end and carb's of my superjet. I've had many problems settings up with the carbs originally running 1.5m (55psi) going to a 2m needle and seat also running pop-off of 18psi (Shinny Silver springs) this seems to of been the best set up but still needs a little more...

The carbs have been rebuilt and I have new filters. I have gone down to the shinny silver spring giving me pop off of around 30 but still getting lean hesitation. The pulse also feels ok and is pulsing. I am going to try black springs with 2m needles and seats to see if this helps. Low...

I have recently rebuilt my Superjet (Top End and Carbs) but now having problems with Carb settings. I have 38 super BN's,factory B,Carbon Reeds and stuffer, Carb spacer. So far I have tried different springs and 1.5 needle and seats but still seems to bog down. I even put back old needles and...

sorry quick question again.. Tubbie 1 or tubbie II france is 21 miles away...think I might run out of fuel.

Thanks for all your help, looks like im going to get a set of Tubbie II's. Ross_c - Thanks for asking, I'm actually from the UK and ride a place called Herne Bay, South East England. Its got everything you need...Rain and a beach with Pebbles !!!! Cheers again to everyone.

Would anyone recommend putting tubbies onto my superjet. Currently I ride in the surf, but I use the ski to Race (only friends) and also TRY freestyle. If I added side sponsons will this affect my attempts at freestyle, as I would like to try and pull off a barrell role one day !! ?

Mike thanks for the reply...its going to kill me running it in but best to do it properly. thanks again

I have decided to do a top end rebuild of my superjet as its now 6 years old (3years with mods). Can anyone give a good idea of how long I should run the engine in for ? I have been told from 1hour to a full tank double oil. Any ideas also does anyone know what the stock compression should...

My factory B pipe is rubbing and I have tried many things, any recomendations as how to stop this. Factory B limited Chamber on superjet 2001 Thanks

Please find attached pics Thanks for all your help so far much appreciated. Alot of people are saying detonation and it should be running at least 15% race fuel. Currently only using Super Unleaded (in UK about 98 Octane)

We recently test the compression on a sxr and we found the rear was reading 144 and the front 160, on removing the head (JSU with 28cc domes) we noticed the rear piston was burnt on the top edges but the front piston was fine. Removed the barrell and that was not marked and the rings were ok...

I will be checking the starter, hopefully I will be lucky and not have a toasted starter. But thanks again guys if I had used a UK forum I would still be scratching my head

Just like to thank everyone for there help, I think I have found the problem.... decided to turn over by hand again ( not sure why ) but didnt sound right. Opened the crank case and the bendix was jammed open and the spring broke. Hoping this was the problem, new bendix to be ordered ...

I can turn the engine over by hand with plugs in so I know its not hydro locked. I will try the test mouthfulloflake suggested. But im not sure it is battery as I have connected a car battery straight to the power lead and earthed out on the engine so bypassing the battery. Thanks for...

I'm a newbie to this site but need your help on a problem. Whilst riding the otherday my ski seem to splutter and then cut out, now it will not start I just get a clicking from the electricalbox. I thought it could be flat battery but after a charge it still clicks, I have recently...