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tell ya dad to run that through his car and get 10w/40. Besides excessive oil drag the clutch will not like it.

The tight lower radius is just that...so making it shorter and tighter is not ideal. The guides do not need to be removed in the majority of cases but if you do want to remove them ,use a tool made for the job add a little heat to surrounding area and press them out. Or, go see an engineering...

Glad to hear you finally started that thing kwikas and put yourself at ease about the vm 26 carb! Now start following the jetting guidelines figured out by hundreds of users and you'll be even more stoked. Bike is looking killer by the way....

yeah I dunno bout new, just another engine found to be suitable with a small amount of work. It definately looks purpose built previously for something other than a pitbike. Like to know the actual specs on the engine. A pic of the cc stamped on the barrel means nothing. The factories let you...

These do gooders are idiots. How 'bout we pass a law also that if this clown politition gets caught breaking the speed limit or parks in a wrong area we crush his Merc. Only fair...

Sorry but i disagree that a three year old cannot ride a peewee. I've started my own kids and heaps of others on a peewee at age 3. Only way to discover if you have a child with exceptional talent is to start em young. Age 3 is exactly when many top sports people were started in their particular...

Yep will starve the pump for oil. For most this is only temporary and usually not under full power, but if you can wheelie for ever it is something to keep in mind....

You may be be right to tilt it. The oil is pumped to the head via the bottom right hand stud passage and then into the end of the cam where it is then thrown all through the head via the oilways cast into the cam lobes. The crankpin is pressure fed and the the rest splash. The main problem I see...

oh...and.... 15hp if you just randomly pick all the dimentions of the engine parts and bolt it together. 17 - 18hp if you (or someone else) have calculated for maximum volumetric efficiency at your desired rpm and will spend considerable time trying different combos to get it. 19 - 20hp if you...

Hey welcome back....I been away for a while too and this is the first thread I,ve read. I have a few PM's in my inbox ... I started looking at maximising strength in the stud area a while ago and have settled on short skirted pistons in a 59mm bore and cases at 61mm with the sleeve skirt cut...

I have been informed the northern NSW bucket racing association will let us run with them and maybe end up with our own class if we get the numbers. 185cc limit yeehah. They think we'll just run around the back of the field giving them overtaking practise...they may be in for a surprise. I am...

360 degrees at the flywheel I meant.

Did you mean you had the cam timing out by 360 degrees?

I doubt you guys apart from Flarry have gearbox issues. Just slipping clutches. Because these engines get swapped into so many different bikes the clutch cables can differ and run out of adjustment. The cable needs to be adjusted so that it starts to engage as soon as you start to release it so...

Yes they have a mesh filter for the big stuff (you should also run a magnetic drain plug) and the oil slinger picks up the rest. They are a very effective filter and have been used by hondas for years.

no its just a press fit in there. You just use a pipe or socket of the same diameter as the bearing race to knock the new one in.

8 ft pounds is sufficient. It is important to correctly torque up your head bolts. Above all, resist the urge to overtighten!

If its truly a crf50 frame then the bearing shop won't help you. Your need the aftermarket jobbies alright. Can get them from just about any fiddy store that supplies Honda aftermarket parts.

Rotator Cuff Tear It is my belief that the 140 Lifan as it comes installed in many of the cheap bikes is being restricted because of the exhaust/ carb combo. But still even in restricted form has a **** load more torque and power than previous engines. It would want to, it has bigger cc, is a...

I'm with you sidney, handy to have when that throttle gets jammed open and you want it dead quick.