Quick help needed - watercooled in which class?

[daytona 2]

yes i chinese bikes do give their share of annoyance... but its a racing sport and thats just part of it unless you want to buy a euro bike

[CookMySock]

right, so any hints ?

DB

[grantman]

If you try starting it then take the plug out
how does it look?

Maybe carb is blocked?
Chinese fuel filters are suppose to be crap

If you have 2 bikes at least you can swap parts around to test

[BigAl]

Yeah DB,

The problem will either be fuel or spark, if it has spark then look at fuel.

You did add oil? btw use a fully synthetic oil like TTS.

fuel getting through to carb, getting through to engine. Start with the easy things first; swap plug, loosen fuel cap in case of fuel lock, swap carbs (could be dirt in carb..) read through all postings on Pocket bike won't start.

Be patient, they all need sorting as you do get what you pay for compared to a multi thousand dollar euro!

[CookMySock]

Thanks grantman. Damn my ears are ringing - what an evil little engine.. I nearly looped it twice!! Sittin too far back I think

We have quit for today - just not enough light. Tomorrow is another day!! We'll get that plug out and see whats up. Also if theres someone at the track we'll go down there and introduce ourselves.

Yeah the first one just quit like something fell off. Idling nicely and lots of power, then brrrr, stop! dead! I see its' choke is not locking on like the other one.

edit: BigAl, yeah I am thinking it is either not enough fuel in the little tank, or airlock, or goo in the filter or something. Yes, I used a non-synthetic oil at 20:1 Cough, reading the manual it says to run it in on fully synthetic.. We got some amsoil 100:1 2stroke - mix that up at 25:1 or what ?

whew!
DB

[CookMySock]

ok, plug is wet. So I cleaned it and retried - no. Check it again, wet. So we have fuel.

While the plug was out I put its lead on and gave the starter cord a pull - plug fires cleanly and brightly.

I pulled the air filter off and squirted a bit of fuel down the carby - no sign of life whatsoever.

I pulled the carby off and squirted fuel down the manifold - so signs of firing whatsoever.

Theres lots of compression, but very little suction from the inlet manifold. I wonder if its spat a reed valve. Removing engine now - gunna check the reed valves.

DB

[CookMySock]

Fixed ! swapped the plug out of the other bike and VOILA!!

Two stroke oil everywhere !!!

whew! now I know how to get the engine in and out and get the carby off..


Thanks to all who volunteered advice.

DB

[BigAl]

Good to hear Db, thanks for letting us know.

See you on the track sometime.

[Gadgit]

Hay DB swap both the plugs for some NGK ones the chineese ones are poop they run for a bit then all of a sudden ya can't start the dam thing from hot or it just won't start... I had the same problem with a few bikes I bought new... plugs still work fine out of the engine but brake down under compression

[CookMySock]

plugs still work fine out of the engine but brake down under compression

So what is the hot tip on sparkplugs ? which one is best ? I heated a the dead plug read hot with the propane torch.. it started easy after that... for a bit

Tyres - these ones are fucking nearly square.. is there something better I can swap over ? Seriously, on the stand give it a rev and the bike nearly gets airborne! Badass!


DB

[BigAl]

Plugs, just get same heat range in NGK about $5 from Repco/Supercheap.

Tyres, don't muck around with Chinese, get a set of Savas from Xtreme or PMTs from Pocket Bike Imports (see links on front page of www.nzmmrc.co.nz), they are heaps better for grip and last at least 10 times longer!

[Gadgit]

So what is the hot tip on sparkplugs ? which one is best ? I heated a the dead plug read hot with the propane torch.. it started easy after that... for a bit

Tyres - these ones are fucking nearly square.. is there something better I can swap over ? Seriously, on the stand give it a rev and the bike nearly gets airborne! Badass!


DB

I have fitted NGK BP9ES round $5 to some bikes but I use

N.Denso IW20 round $30 (only found at Toyota and I get them for a bit cheeper)

[CookMySock]

Ok we got a brand new NGK B8ES and put that in. pull, pull, pull, pull, pull, pull, grrrrROWL!!

Pulled it out, and its clean as a whistle ! WTF??

Hrm, toast it with the propane torch, gap it down a bit, boof it back in and pull - YANNNNGG!!!!! woohoo!

We changed the fuel too. Amsoil 100:1 premix is the shit. I have used it every 2stroker that I have ever had. Brilliant!! NO smoke!

So the teenager rode it around for an hour and got used to it. Brilliant !!


the cool new things just never end!
DB

[BigAl]

Amsoil 100:1 premix is the shit. I have used it every 2stroker that I have ever had. Brilliant!! NO smoke!
DB

Hope you are not using 100:1! I recommend 40 to 1 max, what do you think Gadgit?

[CookMySock]

Hope you are not using 100:1!

Well I might have sploshed a bit too much oil in it, and its maybe 50:1. But eventually it'll run 100:1

Yeah 100:1 really brings out the unbelievers ! LOL! Jihad! Jihad! Jihad! /me fires into the air.. until they try it.. then they are strangely quiet.

I figure a new engine is 160 bucks, so lets try it.


DB