Small pinholes in the reed valves

Adjustment and Tuning of a Chainsaw Carburetor ' Chainsawr

store.chainsawr.com/.../1126042-adjustment-and-tuning-of-a-chainsaw-c...

Carburetor Adjustment for Chainsaws Carburetor adjustment is critical on chain sawsand ... The throttle valve (butterfly) simply cuts off the supply of combustible air/fuel and the engine stops. .... (7) Go back to step (5) and reset the idle speed.Missing: 300 ‎x19 ‎hp

Small Engine Troubleshooting - Jacks Small Engines

www.jackssmallengines.com/diy/small-engine-troubleshooting/

Mar 20, 2015 - Fuel valve shut off; Fuel solenoid inoperative. ... Pull starter rope to setengine on compression. ... i cant get motor to idle its a b&s 300 series 4.50 model 9t602 type 5019 serial 11082954 aug ... i have a 17 hp kohler command that backfires when i try to start it, it has a new coil and i ... July 5, 2015 at 1:46 pm.

TWO-STROKE REED VALVE EXPLAINED - YouTube

? 7:08
https://www.youtube.com/watch?v=S8-bR7DMpbg
Feb 27, 2008 - Uploaded by DIOSpeedDemon
The reed valve is very important for a high perfomance DIO engine. ... The valve material is of great concern when building these engines. ... DIOSpeedDemon 5 months ago ..... 300 HP 2 STROKE - Duration: 1:05. jangho9 218,194 views ... Two-Stroke Scooter / ATV Carburetor Settings And Adjustments ...Missing: chainsaws ‎pro ‎x19

Hi first thing what is the bike second thing is the engine a 2 stroke, if it is 2 stroke it most prob. has a reed valve, check that the carb needle valve is working as it should, then drain the cylinder and crank of fuel check the plug sparks, leave the carb off and put a small amount of petrol in it, try and start it if it fires once or twice, then it should start with the carb on it, if not there is a problem with the carb. good luck.

Check for air leaks. You probably need new crank seals and a new intake manifold. Check your reed valves if you have them and do not hold the throttle wide open if it is bogging you will score the cylinder by running it lean.

I'd start by thoroughly cleaning out your carb.,...check/replace the main jet with a leaner, [higher #], jet...change/clean pilot jet also,..spray carb cleaner in all holes and blow out w/compressed air. Re-check your float height and/or any damage to the float pin+tangs etc. Maybe try a 50:1 gas:oil mixture. Perform a leakdown test,..air will cause boggs as well. *[p.s.; does bike blow oil out exhaust?].

i have a 92 rm 250 an i just had it fully rebuilt an it laggs in power band an splutters an feels guttles

i may be wrong but it sounds like your bike has either,a dirty air filter(this would explain the bogging out in the midrange) or a bit of crud in the carb,check the tank filter(the one that is incorporated in the fuel tap),then get the carb off and give all the jets a good clean out,it only takes a small amount of dirt in the fuel system or carb to seriously affect performance,while you have the carb off,take off the inlet manifold that holds the carb,remove the reed valve block and check the condition of the reeds(if you can see daylight through the valve seat)ie between the reed valve and the base block,the reeds may need replacing,this may also explain your hard starting,as the reeds need to fully close against the block to get the right amount of air/fuel through to the crankcase,.these bikes generally go like a rocket so it will only be something minor which is stopping you enjoying it to its fullest..hope this helps

The reed valve assembly should hold solvent withot leaking. Remove for test. Disassemble and clean reeds and reed seat. Perfect seal is very important.

Good luck,
Techjoel

You have an air leak that is making the fuel mix too lean. Probably intake manifold gaskets. Other sources are reed valves chipped, deformed or broken, cylinder head gasket not fully sealing and crank seals gone bad. Your bike is 20 years old, I don't remember if your bike has reed valves.

The dealer is not going to have new parts. google " suzuki motorcycle parts " and " antique suzuki motorcycle parts "
also google " motorcycle salvage suzuki ". This should give you some sources for parts.

Please rate this solution. Thanks weldin_fool!

has this bike been winterized with fuel stabulizer?

has this bike got enough compression?

is the oil injection working?

yes reeds are slighly opened
if tamper with
will loose - acceleration - top end power