Forum: Engine - Clutch - Transmission

Anyone know who has a dyno and good with tuning 2 strokes around Palmy. Need some contact details please. Any help would be good.

There's me cool as a cucumber thinking at about 9pm last night I'll just fire my WR up and check it over before the CCA with the plan to fill it with fuel today and load a bag etc. Blow me days its sitting outside my garage idling away and next thing there is smoke coming off the header pipe....

hi i have been told by several people that a zxr 400 motor will bolt straight in to a zxr 250c frame. anyone know how true this is? what else would need changing? any help appreciated cheers Tom

OK, so I got myself a 'lil Ducati Monster 400, and its got stock mufflers. How will it sound if I get the mufflers off a big bike, like an R1 or a Hyabusa for example? Will be be quieter, or louder? Surely the bigger cc bikes have a better flowing/less restrictive muffler... Worth a try? ...

My RD350LC lives again - scruffy but on the road while I can still afford the rego. I have Renntech springs in the front which help a lot in place of the boiled spaghetti originals, and I swapped out the OEM shock for the French made EMC from my race LC (RIP). The shock is one i got i a fair...

What is the usual process from removing carbon buildup from piston faces/valve faces? Is there any products out there to make the job easier than old fashioned sweat and elbow grease?

Had an odd problem pop up a couple of times today: the bike wouldn't shift down gears. The shifter moves down, but feels soft; no resistance, and no positive click. Generally letting the clutch back out would get things going again, but at one point, when I had the bike in neutral, it absolutely...

Ages ago I had a thread about my gsx400 crapping out. Still sad, and still in parts. Found one guy in rotorua that could machine down the big end journal, and take the bearing, file down where it bolts together and hone the inside round again for $460. This seems unbelievably expensive and after...

Hey, my names pasqual. sort new to this site. I was wondering if anyone on here new how much it would be to rebuild a gearbox? the bike in question is http://www.trademe.co.nz/Browse/Listing.aspx?id=276773076

HI, My kawasaki klr 250 1985 model coolant going to crankase. I thought that the waterpump seals was gone so i got the water pump seals and oil seal changed but that seems not the problem cause coolant is still going to oil crankcase. When the bike is standing still and not started as i put...

I've got a flywheel cover off a DRZ400 which has had a encounter with a tree. It was previously welded up (very averagely) and still leaked a bit. A resin was put on the inside what didn't stick to the ally properly (Chips off). So i figure i'll get it welded up properly. Any suggestions for...

Its been a few meets since I rebuilt the engine in the RG, so i've started thinking about doing a piston replacement. I'm just after a general rule of thumb as to how often I should be replacing the piston (number of race meets is probably the best gauge). It's done 9 meets so for (3 of which were...

just a question to all the harley guys , so a mate say's to me how he's paying extravgaint prices for a simple oil change. i tell him it shouldnt be a big thing since ive got the room and nesecary tools easy to do i think?, so question to any one who knows is there any thing apart from using...

What makes the counter shaft splines wear out premiturely? would like to here some theories. would a say ADV bike with no cush drive wear the shaft out quicker on the road or off?

I have just noticed a problem with my bike. Coming home from work on Monday after coming of the motorway I noticed that temperature gauge was erratic. It was jumping up to close to hot then dropping to nothing on the temperature gauge. I stopped to see if I was leaking etc or if run out of coolant...

Hi all... like the title says i'm about to "rivet" a chain (first ever believe it or not)... Does anyone have any tips, hints, old wives tales etc... For starters I can't get the link plate to go on to the link... then when I do I have a punch to ?spread/bend? the rivet heads... but was...

Is it possible to run a 520 front sprocket on a 525 chain or is that a bad thing? Im looking at dropping one tooth on the front and all I can find are 520 sprockets. cheers TD

hey guys, just picked myself up a 99 cr125 and just wanting some advice about a top end rebuild. The previous owner reckons it has about 20hours on it but that could really mean 80+ hours. I just flushed the tank and cleaned the carbs, and returned it all back to stock settings. Im wanting...

I'm new here so hi everyone! I just bought my first bike on Monday - a CBR250 RR '90. Heaps of fun! I've been meaning to get into riding for years and wish I'd taken the plunge earlier now! Question for you mechanically minded; my bike runs pretty rough when it's cold. It doesn't really rev...

Hi guys . new in here so go easy, my rm 250 feels like it mises hard out in 1st and 2nd gear, its not till you hit 3rd that it starts running sweet and the powerband feel great. is this normal for a 2stroke or is something wrong.

Anyone heard of this kind of engine. I came across a thread sometime back on another biker forum. Basicly the arguement went that the HD motor is a Split Single. The exchange got a bit fierce from some Harley types who saw this as somekind of degregation of the H D. Can't find much on...

howdamnhard has asked me to post a request for a 91 Kawasaki water pump as he cannot access the forums at the momment. His has failed and the lead time from Japan is 3 weeks. He found a puddle under bike after getting back from Paeroa and the coolant reservoir is empty. If any one can help in...